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Difference between revisions of "Case 48"
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→Differential diagnosis
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===Provided clinical history=== | ===Provided clinical history=== | ||
46 year old male, | 46 year old male, pigmentation proximal colon | ||
===Site=== | ===Site=== | ||
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===Differential diagnosis=== | ===Differential diagnosis=== | ||
{{hidden|Differential diagnosis|<center> | {{hidden|Differential diagnosis|<center>[[Hemochromatosis]], [[Melanosis coli]], [[Malignant melanoma]].</center>}} | ||
===Additional tests=== | ===Additional tests=== | ||
====More history==== | ====More history==== | ||
{{hidden|More history|<center>Patient | {{hidden|More history|<center>Colonscopy shows diffuse brown pigmentation in a moire pattern, predominantly in the left colon. Patient complains of constipation. The medications include Effexor, Senokot and Altace.</center>}} | ||
====Ask a colleague==== | ====Ask a colleague==== | ||
{{hidden|Ask a colleague|<center>The brown | {{hidden|Ask a colleague|<center>The brown pigmentation isn't melanin. This finding is worth reporting, especially in the context of IBD, as it can occasionally mimic a colitis.</center>}} | ||
====Stains==== | ====Stains==== | ||
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| oilredo= | | oilredo= | ||
| orecein= | | orecein= | ||
| pas= | | pas= +ve | ||
| pasd= | | pasd= | ||
| pasf= | | pasf= | ||
| ptah= | | ptah= | ||
| prussian= | | prussian= -ve | ||
| reticulin= | | reticulin= | ||
| sudanblackb= | | sudanblackb= | ||
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| zn= | | zn= | ||
}} | }} | ||
====IHC==== | ====IHC==== | ||
{{Case IHC | {{Case IHC | ||
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===Diagnosis=== | ===Diagnosis=== | ||
{{hidden|Diagnosis|<center>[[ | {{hidden|Diagnosis|<center>[[Melanosis coli]]</center>}} | ||
<br> | <br> | ||
===Other cases=== | ===Other cases=== | ||
{{Cases navigation}} | {{Cases navigation}} | ||
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[[Category:Cases in gastrointestinal pathology]] | [[Category:Cases in gastrointestinal pathology]] | ||
[[Category:Cases difficulty | [[Category:Cases difficulty 1]] <!-- difficulty 1-7 -- should roughly correspond to the PGY level --> | ||
[[Category:Cases in gastrointestinal pathology - junior]] | [[Category:Cases in gastrointestinal pathology - junior]] | ||