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Building Blocks of Dermatopathology

BAD DermpathPRO Learning Hub: Diagnostic Clues

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Case Number : CT0127 Adam_Bates

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53 year-old male with pink papules on posterior neck.


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Adam_Bates

Posted

Perforating folliculitis with foreign body reaction to the extruded keratin of the hair shaft. Acne keloidalis nuchae is a possibility considering the site

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Adam_Bates

Posted

A lot of plasma cells. But I see that in many pilonidal cysts; so agree with Anil. 

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Adam_Bates

Posted

Ruptured folliculitis. Agree considering the site acne keloidalis is good possibility. 

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Adam_Bates

Posted

folliculitis with mixed inflammatory cells

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Adam_Bates

Posted

Folliculitis with neut, PC and some small cystic areas, due to location i would be inclined to think acne keloidalis

Would you consider ZN or PAS ?

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Adam_Bates

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Acne keloidalis nuchae.

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