
Second Opinion Inpatient Evaluation
Most second opinions agree with the first one, and agreement is the result worth having, because it lets a family consent and stop revisiting the decision. Among 286 referred patients the final diagnosis came out completely different in 21 percent and refined in 66 percent, while re-reading outside scans changed management in 18.6 percent. This page covers what a second opinion actually tests, which decisions can wait for one, what to send, and what to do when the two opinions disagree.
About This Department
Most second opinions agree with the first one. Agreement is the useful result, and the reason to ask for one anyway.
Among 286 patients referred to a specialist center, the final diagnosis came out completely different in 21 percent, refined or better defined in 66 percent, and unchanged in 12 percent.
What a second opinion is actually testing
People ask for a second opinion hoping to find a better answer. That framing sets them up to be disappointed, because the far more common and far more useful outcome is the same answer, arrived at independently. Three things get tested when somebody competent looks again. Whether the diagnosis rests on evidence that holds up when a different pair of eyes examines it, and whether the plan being proposed is the plan a specialist who sees this condition weekly would propose. And whether the alternatives were put on the table honestly, including the alternative of doing less, which is the one most likely to go unmentioned in a hospital that already has an operating slot booked. None of those three questions competence. They interrogate process, and process is the thing that quietly fails in busy departments where a plan gets made on a Tuesday afternoon by people who have five more patients to see and no particular reason to doubt themselves.
Slide this table sideways on a small screen to reach the second column.
| What a real second opinion does | What a weak one does |
|---|---|
| Looks at the original images and the original slides | Reads the report somebody else wrote about the images and the slides |
| Comes from somebody who treats this condition regularly | Comes from a generalist, or from a specialist in a neighboring field |
| States the alternatives, including doing nothing for now | States a preference and leaves the alternatives unnamed |
| Says plainly where it agrees with the first opinion | Finds something to add in order to justify the consultation |
| Arrives in writing, signed, with the reasoning visible | Arrives as a verbal impression relayed through a third party |
Watch the last row. An opinion that cannot be read back later is an opinion you cannot use when the two teams start talking to each other.
How often it changes anything
Honest figures here look less dramatic than the marketing around second opinions, and more interesting.
So the fair expectation looks like this. Most likely it will confirm the diagnosis and sharpen the plan around the edges. It will occasionally overturn something. And it will very occasionally find that the original diagnosis was simply wrong.
Confirmation gets treated as a wasted trip, which is the wrong way to read it, because a family that has heard the same thing twice, from two independent teams, can consent to a serious operation without spending the next five years wondering. The same review found that 90 percent of patients with poorly defined conditions remained undiagnosed even after a second opinion, which is a useful corrective to anybody expecting one to solve a mystery.
The thing that makes this different inside a hospital
Taken at home, over three weeks, a second opinion costs nothing except three weeks, and taken from a hospital bed it costs whatever the delay costs, which in some conditions is a figure both large and well measured.
What waiting actually costs
In a multicenter study of 2,731 patients with septic shock, every hour of delay before effective antibiotics reached the patient was associated with an average 7.6 percent absolute fall in survival to hospital discharge. Patients treated inside the first hour survived at 79.9 percent, and only half of the whole group received effective therapy within six hours. Septic shock is an extreme case and it is the right one to hold in mind, because it establishes that delay is not a neutral act. In conditions with a clock, the cost of pausing to think is real and can be counted. In conditions without one, the cost of not pausing is a decision nobody tested.
- Settle first whether this decision has a clock on it, and get that answer from the treating team in a sentence rather than inferring it from how busy the ward looks.
- If it has a clock, ask whether the immediate part and the elective part can be separated, because draining an abscess today does not commit anybody to the operation being proposed for next week.
- Name a deadline out loud. A second opinion promised by Thursday is a plan, and a second opinion that somebody is working on is not.
- Send the file the same day. Most of the delay in a second opinion is the file sitting in a folder waiting for somebody to gather it.
The rule of thumb
If the operation is scheduled for tomorrow morning and the condition is not an emergency, the second opinion justifies the postponement, and if the condition is an emergency, take the treatment now and get the second opinion on everything that comes afterwards, because almost nothing in the following six months has been decided yet.
Which decisions can wait
Some things cannot wait for anybody. A bleed that is still bleeding, a blocked airway, a dead bowel, a limb without a pulse, sepsis with falling blood pressure, a stroke inside the treatment window, a tension pneumothorax, a fractured hip in an older patient where every day of delay adds risk. In all of those, the second opinion happens afterwards and the treatment happens now. Most decisions in a hospital are not on that list. A cancer operation scheduled for next week, a choice between two chemotherapy regimens, a spinal fusion, a decision to place a permanent feeding tube, a proposal to switch a patient from active treatment to comfort care, a recommendation that somebody needs a transplant assessment. Every one of those has room in it. Days, sometimes a week or two, and the people proposing them know that even when the way the conversation is conducted suggests otherwise. The room inside them is the room a second opinion needs.
One middle category deserves naming, which is the decision that has a clock but a longer one than anybody said, since a tumor that needs treating within a month is not a tumor that needs treating on Tuesday. Ask for the clinical window in weeks. A treating team that has thought carefully will give you a number, and a team that has not will give you urgency instead of a number.
The slides under the microscope
Almost every serious diagnosis in oncology rests on a piece of tissue that one pathologist looked at and described in a paragraph, and that paragraph then drives everything while hardly anybody asks who wrote it.
A large referral hospital made second opinion review mandatory for outside pathology and then counted what it caught. Across 6,171 cases, 86 of them, or 1.4 percent, had a diagnosis change large enough to cause a major modification in therapy or prognosis. That overall figure is small. What makes it useful is where the errors concentrated. For tumors of serosal surfaces the change rate reached 9.5 percent, and for the female reproductive tract it reached 5.1 percent. One case in eleven, in the first group, was being treated on the strength of a reading that a specialist disagreed with.
Two practical consequences follow. Post the actual blocks or slides, since a pathology second opinion built on somebody else report is a second opinion of the report and no more. And find out whether the tissue in question sits in one of the categories where reading it is genuinely hard, because a straightforward colon cancer and a mesothelioma are not the same kind of question at all.
The scan, and who read it
Imaging carries the same problem as pathology and carries it more often, because a scan gets read once, by whoever was on the list that day, and the report then travels as though it were the scan. A meta analysis pulled together 29 studies covering 12,676 outside scans that were re-read by subspecialist radiologists at a referral center. The two readings disagreed somewhere in 32.2 percent of cases. Disagreements involving a major finding came up in 20.4 percent. The re-read changed management in 18.6 percent. And where a reference standard existed to settle who had been right, the second reading was the correct one in 90.5 percent of the disagreements, which is the figure that turns this from a clash of opinions into a question of expertise. Nearly one scan in five, re-read by somebody who looks at that body part all day, produced a different plan. One scan in five, and in most hospitals nobody re-reads it by default.
One operational point is dull and decides everything. Send the images themselves, meaning the DICOM files from the disc or the portal, and not photographs of a screen and not the report alone. A radiologist can do nothing useful with a paragraph, and given the actual study the same radiologist can measure, reconstruct, compare against the scan from four months ago and say whether the thing being called progression is progression.
One doctor against a room of them
A second opinion from a single specialist has a limit built into it, which is that it is still one person. The stronger version is a room.
Multidisciplinary boards put the surgeon, the medical oncologist, the radiation oncologist, the radiologist and the pathologist around one table with the images on a screen and the slides already re-read, and in a series of 149 breast cancer patients who arrived with their workup already complete from somewhere else, board review changed the surgical management recommendation in 77 of them, which is 52 percent. Reinterpreting the imaging on its own accounted for 11 percent of patients, while reinterpreting the pathology on its own accounted for 9 percent, 13 patients out of 149. The rest came from the discussion, meaning from five specialists disagreeing with each other in front of the evidence until something better than any one of their opening positions came out of it. Fifty two percent is a large number and it deserves a caveat. Breast cancer is unusually well suited to this format, the series is one center, and a plan changing is not the same as a plan improving. What it does establish is that the room sees things the individual does not.
So the question to put when arranging a second opinion is whether the case will go to a board or to one doctor. Both have their place. Only one of them is a room.
When the operation itself is the question
Surgical recommendations earn second opinions their reputation, because an operation is irreversible and the decision to do one sits closer to judgment than to measurement.
A second opinion program looked at 141 patients who had already been recommended for a knee replacement. The reviewing surgeon confirmed that recommendation outright in 40 percent of them. In another 40 percent the recommendation became conditional, meaning replace the knee only if the condition gets worse. And in 20 percent the reviewing surgeon recommended against the operation altogether. Patient confidence in whatever decision they then made rose from a mean of 5.4 out of 10 before the second opinion to 7.8 afterwards, which happened in the group that went ahead with surgery as well as in the group that did not.
Read those numbers carefully. Six patients in ten came out with something other than a straight confirmation, only two in ten were told to stop, and the most common result was a condition attached to the operation, meaning wait, and proceed if this gets worse. That is the outcome a hospital with a full theater list has the least incentive to produce and the one a patient most often needs. Knee replacement sits at the elective end with a long window, so these figures do not transfer directly to a cancer resection. The pattern they show does transfer. Recommendations for surgery contain more judgment than the conversation around them usually admits. The pattern holds anywhere the decision rests on judgment. A surgeon who operates on this condition forty times a year and a surgeon who operates on it four times a year will look at the same knee, the same spine or the same tumor and see a different amount of room for waiting.
What to send, and why the file decides the answer
Second opinions are only as good as what they were given, and most weak ones are weak because the package was thin, and the person reviewing it was too polite to say so.
That last item does more work than the rest combined. Is this the right diagnosis. Is this operation the right operation. Is there a reason to treat this now instead of watching it. Should this patient be having chemotherapy before surgery or after. A named question produces a named answer.
Send it in one go. A file assembled over nine days and sent in four emails gets reviewed as four fragments.
Doing this from another country
The obvious objection to a remote second opinion is that the reviewer never meets the patient, which matters enormously for some questions and barely registers for others, and the distinction follows what the question rests on.
A referral center compared remote pathology review using whole slide imaging against the conventional method of posting glass slides. Across 74 consultation cases, the remote reading matched the original diagnosis in 52 of them, 70.3 percent. The major discrepancy rate for the digital read was 2.7 percent, against 4.1 percent when the same reference pathologists reviewed the physical glass slides again. Digital review was at least as reliable as posting the slides, and it took days off the turnaround.
So questions that rest on images, slides, numbers and documents travel well. A scan is a scan in any country, and a stained slide photographed at high resolution loses almost nothing. Blood results, operative notes and drug charts lose nothing at all. Questions that rest on examining the patient travel badly, and there are more of them than people expect, including how frail somebody actually is, whether a lump is fixed to the chest wall, what the abdomen feels like and whether a patient can climb a flight of stairs. A written remote opinion is the right first step in almost every case, because it costs nothing and settles most of the question, though it cannot replace an examination when the decision turns on one, and an honest service says which of the two you are dealing with. Start with the file, read the written answer, and let that decide whether anybody needs to travel, since the order of those three steps saves most people a journey.
The conversation a second opinion is really for
One finding reframes the whole subject. Patients do not mostly seek second opinions because they doubt the doctor. They seek them because they did not understand what they were told, and because nobody offered to say it again. A multicenter study looked at patients choosing between organ preservation and removal of the larynx for advanced cancer, immediately after the counseling session where the options had been explained. Forty four of 45 patients, 98 percent, scored in the clinically significant range for decisional conflict, and on a knowledge test covering the options they had just had described to them the average score was 47 percent correct. On the questions specifically covering laryngectomy, the operation that removes the voice box, 35 percent answered correctly. These were not careless patients and that was not a careless consultation. It was an ordinary consultation covering a decision too large to absorb in one sitting, conducted in the state of mind that follows a cancer diagnosis, and the numbers describe what that combination does to comprehension.
Second opinions work on exactly this. The same information, from a different voice, at a different pace, a week later, with your own questions already written down.
- You can say what the diagnosis is, in one sentence, without reading it off a page.
- You can name the alternative nobody chose, and say why.
- You can say what happens if nothing is done for three months, even when that answer is unpleasant.
- You can say what the operation is meant to achieve, separately from what it is meant to prevent.
- You can state one number, whether it is a survival figure, a complication rate or a recovery time, and say where it came from.
If you cannot do those five after the first consultation, the problem may not be the plan, so request the consultation again before assuming you need a different hospital, because a repeat conversation with the original team costs nothing and resolves a good share of cases.
When the decision is about limits
Hardest of all to arrange is the second opinion on whether to keep going, and families want that one most and ask for it least. Researchers interviewed 179 surrogate decision makers acting for 142 critically ill patients at high risk of dying, asking what their beliefs on the prognosis actually rested on. Fewer than 2 percent, three people out of 179, said their view came only from what the doctors had told them. Everybody else was combining the medical estimate with something of their own, including the patient strength of character, what they had seen at the bedside that morning, and their sense of whether this particular person gives up. Clinicians tend to hear that as families failing to listen. It reads better as families doing what anybody does with an uncertain prediction about someone they love. Any second opinion lands in the middle of all that, and it has to be offered in a way that respects it.
A second opinion in this setting rarely changes the medicine. Two intensivists looking at the same failing organs usually reach the same place, and what it changes is whether the family can live with the decision afterwards, which is a legitimate thing for a service to provide and a poor thing to pretend is something else. Request it plainly and say what it is for. A treating team that understands the request concerns certainty and not mistrust will usually arrange it themselves.
Telling the first team
Families agonize over this and doctors mostly do not. Nobody in medicine finds a second opinion surprising. Serious disease makes them routine, and several health systems make them a formal right.
Records belong to the patient in most jurisdictions, and hospitals have a process for releasing them even when the person at the desk does not know it. Write to the medical records office by name. The request usually has a form and a stated turnaround. Allow a week.
Avoid one thing. Do not seek the second opinion secretly and then present it as an ultimatum, because the two teams will need to talk to each other and a conversation that starts with a surprise starts badly.
When the two opinions disagree
Nothing frightens families more than two doctors disagreeing, and nothing turns out more manageable once it happens.
What to do next
Put the second opinion in front of the first team in writing and ask for a written response to it, since that single step resolves most of these, because a specialist reading a colleague reasoning will either concede a point or explain why it does not apply, and either outcome moves you forward. If the disagreement survives that exchange, ask for a third opinion from a center that does a high volume of the specific procedure, and give that reviewer both earlier opinions rather than presenting the case fresh. Two documented disagreements are a much better brief than a blank slate. What to avoid is collecting opinions until one of them says what you hoped to hear. Three opinions make a tiebreak. Six make a search. Write it down. Set a stopping rule before you start, meaning a number of opinions and a date, because the search for agreement can absorb the exact weeks the decision needed.
What drives the cost
Written second opinions on reports and imaging are free here, and that covers the majority of what people need. Beyond it, the cost follows how much work the question requires.
Where the free review stops and a paid assessment starts
Reviewing a file and answering a stated question is one job. Re-reading the pathology at a microscope, convening a board, repeating imaging because the outside study was done on the wrong protocol, examining the patient in person and producing a formal treatment plan are separate jobs with separate costs. A service that blurs the line between them is a service you will argue with later. Two jobs, two prices.
Slide this table sideways on a small screen to reach the second column.
| Element | Which way it moves the total |
|---|---|
| Written review of reports and imaging | Free here, and it answers most questions people arrive with |
| Second reading of pathology at the microscope | Charged as a specialist service. Ask whether the block has to be cut again, because recutting adds time as well as cost |
| Repeat imaging | Sometimes unavoidable when the outside scan used a protocol that cannot answer the question. Ask whether the existing study can be reconstructed before agreeing to repeat it |
| Multidisciplinary board review | Priced as a coordinated assessment in most centers, since it occupies five specialists at once |
| In person examination and consultation | Adds travel, a night or two in Istanbul, and an outpatient consultation to the file review |
| Turnaround | A compressed turnaround costs more everywhere, and naming the deadline at the start is cheaper than escalating later |
No figure for any of this appears on this page, because what a second opinion costs follows what it turns out to involve, so find out which of the rows above your question needs before agreeing to anything.
What to ask, and what a good answer sounds like
Quality in a second opinion service shows up in its answers to a handful of ordinary questions, most of which can be asked before anything is sent.
This table scrolls sideways on a phone. Drag it across to reach the second column.
| What to ask | What a good answer sounds like |
|---|---|
| Who will review this, and how often do they treat this condition | A named doctor, a named department, and a figure for how many of these cases the unit handles in a year |
| Will you look at the images and the slides, or at the reports | The images through a portal or on a disc, and the slides posted, with an explanation of what each one can settle |
| Does this go to one specialist or to a board | A direct answer either way, with the reason it is being handled that way for this particular question |
| What is the turnaround | A number of working days, tied to the date the complete file arrives |
| Will the opinion come in writing and in my language | Yes to both, with the reasoning set out and not only the conclusion |
| What will you not be able to answer from a file | A specific list. A service that says it can answer everything remotely has not thought about the question |
The question underneath all of them
Ask what would have to be true for the reviewer to disagree with the first opinion. A reviewer who can answer that has a method, while a reviewer who cannot is going to read the file and tell you what the first team already told you, which brings you no closer to anything.
What we arrange
For a second opinion the arrangements concern the file, the language and the speed first, and the visit only after that.
A free written second opinion on your reports and imaging, produced by the relevant department and returned in a language you read. One coordinator from the first message onward, with a name and a direct number, so the person chasing the missing prior scan is the person who knows why it is needed. Seven languages covered directly by the international patients team, namely English, Arabic, French, Russian, Serbian, Romanian and Spanish, with a professional interpreter arranged for anything else. Help assembling the file, meaning what to request from your current hospital and in what form, since most of the delay sits there. A multidisciplinary review where the case calls for one. If you then travel, an invitation letter naming the hospital and the treating doctor for the visa application, a companion bed in the room, accommodation nearby, airport transfers, halal, vegetarian and diabetic meals from the hospital kitchen, a prayer room in the building, and a request for a female physician met wherever the rota allows. And once you are home, the same coordinator on the same WhatsApp number.
Send the file first. Nothing above needs deciding until the written opinion is in front of you, and the written opinion costs nothing.
Questions we are asked, a second opinion FAQ
How likely is a second opinion to change anything
Less likely than the marketing suggests and more likely than nothing. In 286 referred patients the final diagnosis came out completely different in 21 percent and refined in 66 percent. A systematic review of cancer second opinions found the original diagnosis or plan verified unchanged in 43 to 82 percent depending on the study. So expect confirmation, treat a refinement as the usual result, and treat a reversal as the exception that it is.
Is confirmation a waste of time
No. Confirmation allows a family to consent to something serious and stop revisiting it. In one program for knee replacement, patient confidence in the decision rose from 5.4 out of 10 to 7.8, and that rise happened among the patients who went ahead with surgery as well as among those who did not.
Should we delay treatment to get one
It depends entirely on whether the condition has a clock. In septic shock, each hour before effective antibiotics was associated with an average 7.6 percent absolute drop in survival, so nobody waits for a second opinion there. A cancer operation scheduled for next week almost always has room in it, so get the clinical window from the treating team in weeks, and work inside that number.
What do we actually need to send
The imaging as DICOM files and not the report, every prior study of the same region, the pathology report along with the block or slides, the operative note if there has been surgery, a current medication list, blood results with dates, a one page summary of events in order, and one clear question. The question is the part people leave out, and a file with no question gets a general answer.
Can this be done without traveling
For most questions, yes. Remote pathology review using whole slide imaging matched the original diagnosis in 70.3 percent of 74 cases, with a major discrepancy rate of 2.7 percent. Questions resting on images and documents travel well, and questions resting on examining the patient do not. The service should say which one you have.
What if the two opinions disagree
Work out which kind of disagreement it is. Different information is the commonest kind and resolves once both teams hold the same file. Different reading of inconclusive evidence does not resolve, and both positions should simply be stated so you can choose between them, while different views on what you personally should accept is not a medical question at all. Put the second opinion to the first team in writing and ask for a written reply.
Will the first hospital be offended
Rarely, and their reaction is itself informative. Serious disease makes a second opinion routine, and several health systems make it a formal right, so say it directly and early, request the records through the medical records office, and avoid presenting the second opinion as an ultimatum, since the two teams may need to speak to each other.
Does a second opinion cost anything here
The written review of your reports and imaging is free, including the written answer in a language you read. Reading the pathology again at the microscope, a multidisciplinary board review, repeat imaging or an in person consultation are separate services with their own costs, and we tell you which of those your question needs before anything is agreed. We say so up front.
References
- Van Such M, Lohr R, Beckman T, Naessens JM. Extent of diagnostic agreement among medical referrals. J Eval Clin Pract. 2017;23(4):870-874.
- Ruetters D, Keinki C, Schroth S, Liebl P, Huebner J. Is there evidence for a better health care for cancer patients after a second opinion, a systematic review. J Cancer Res Clin Oncol. 2016;142(7):1521-1528.
- Payne VL, Singh H, Meyer AND, et al. Patient-initiated second opinions, systematic review of characteristics and impact on diagnosis, treatment, and satisfaction. Mayo Clin Proc. 2014;89(5):687-696.
- Kumar A, Roberts D, Wood KE, et al. Duration of hypotension before initiation of effective antimicrobial therapy is the critical determinant of survival in human septic shock. Crit Care Med. 2006;34(6):1589-1596.
- Kronz JD, Westra WH, Epstein JI. Mandatory second opinion surgical pathology at a large referral hospital. Cancer. 1999;86(11):2426-2435.
- Rosenkrantz AB, Duszak R, Babb JS, Glover M, Kang SK. Discrepancy rates and clinical impact of imaging secondary interpretations, a systematic review and meta-analysis. J Am Coll Radiol. 2018;15(9):1222-1231.
- Newman EA, Guest AB, Helvie MA, et al. Changes in surgical management resulting from case review at a breast cancer multidisciplinary tumor board. Cancer. 2006;107(10):2346-2351.
- Weigl M, Pietzner J, Kisch R, et al. Effects of a medical second opinion programme on patients decision for or against knee arthroplasty and their satisfaction with the programme. BMC Musculoskelet Disord. 2021;22(1):595.
- Jones NC, Nazarian RM, Duncan LM, et al. Interinstitutional whole slide imaging teleconsultation service development, assessment using internal training and clinical consultation cases. Arch Pathol Lab Med. 2015;139(5):627-635.
- Heirman AN, de Kort DP, van Son RJJH, et al. Decisional conflict in patients with advanced laryngeal carcinoma, a multicenter study. Laryngoscope. 2024;134(8):3604-3610.
- Boyd EA, Lo B, Evans LR, et al. It is not just what the doctor tells me, factors that influence surrogate decision-makers perceptions of prognosis. Crit Care Med. 2010;38(5):1270-1275.
Editor's note
Written by the Biruni Hospital medical editorial team. Reviewed by Prof. Dr. Mehmet İlke BÜGET, Anesthesia and Reanimation.
Medically reviewed by

Prof. Dr. Mehmet İlke BÜGET
Anesthesia and Reanimation
Related Treatments
View All
Bone Marrow Transplant Unit (BMT Unit)
Between the mid 1990s and the mid 2000s, death within 200 days of an allogeneic transplant that was not caused by relapse fell by 60 percent, and almost none of that came from a new drug. This page is about the part nobody photographs, meaning the filtered room, the rules that have evidence behind them and the ones that do not, the laboratory chain behind the cells, and what a family can actually do.

Burn ICU (Burn Intensive Care Unit)
Age, burn size and smoke inhalation are the three numbers that set the outlook after a major burn. This page walks through fluids, early surgery and grafting, the long healing phase, and when a burn patient can be flown abroad.

Burn Unit (Burn Center)
Burn care runs on one figure, the percentage of the body surface burned, and a systematic review of 28 studies found that referring hospitals overestimate it in half or more of cases. Fluid volume, the transfer decision and the survival estimate are all calculated from that number, which is why this page starts with how it is measured and who should be measuring it.

Cancer Pain Management Unit
The Cancer Pain Management Unit at Biruni Hospital in Istanbul treats pain caused by cancer and by its treatment. Two in three people with advanced cancer report pain, and reviews show nearly one in three receive medication too weak for it. The unit uses stepwise medicines, radiotherapy for bone pain, nerve blocks and spinal pumps, and plans follow-up for patients who return home abroad. The pain team reviews reports and current medicines free of charge.

Cancer Patient ICU Care
Cancer once counted as a reason not to offer an intensive care bed at all. Pooled data from 7,354 critically ill cancer patients retired that rule, and the argument now is about which patient, for what, and how long full support runs before anybody formally reassesses it.