Immunohistochemistry: Difference between revisions

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The main methods for evaluating immunohistochemistry results are:
The main methods for evaluating immunohistochemistry results are:
*Looking up each differential diagnosis at for example '''[https://www.pathologyoutlines.com/ Pathology Outlines]''' and comparing their expected staining to see which entity is most likely.
*Looking up each differential diagnosis at for example '''[https://www.pathologyoutlines.com/ Pathology Outlines]''' and comparing their expected staining to see which entity is most likely.
*Paying for a subscription to '''ImmunoQuery'''{{ImmunoQuery COI declaration}}, where you can enter immunohistochemistry results and generate a list of most likely conditions with that profile.
*Paying for a subscription to '''ImmunoQuery'''<ref group=notes name=ImmunoQueryCOI/>, where you can enter immunohistochemistry results and generate a list of most likely conditions with that profile.


Preferably, immunohistochemistry results will be very specific for a suspected condition, thereby confirming it. Even when that is not the case, immunohistochemistry can at least alter the likelihoods of different differential diagnoses. Pathology practice is too uncertain to perform calculations of exact percentages of likelihoods of differential diagnoses, but to demonstrate the general principle of how immunohistochemistry results are calculated, the following formula can be used:
Preferably, immunohistochemistry results will be very specific for a suspected condition, thereby confirming it. Even when that is not the case, immunohistochemistry can at least alter the likelihoods of different differential diagnoses. Pathology practice is too uncertain to perform calculations of exact percentages of likelihoods of differential diagnoses, but to demonstrate the general principle of how immunohistochemistry results are calculated, the following formula can be used: