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Building Blocks of Dermatopathology

BAD DermpathPRO Learning Hub: Diagnostic Clues

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Case Number : CT0094 Adam_Bates

Please read the clinical history and view the images by clicking on them before you proffer your diagnosis.
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1 year old boy with solitary erythematous small nodule on back.
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Adam_Bates

Adam_Bates 47

Posted

Mastocytoma

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Adam_Bates

Adam_Bates 47

Posted

Lovely mastocytoma.
 

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Adam_Bates

Adam_Bates 47

Posted

Agree with mastocytoma, given clinical history. Differential diagnosis would include granular cell tumor.
 

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Adam_Bates

Adam_Bates 47

Posted

Mastocytoma is the right answer. I thought you might like to look at CD117 (immuno 1), mast cell tryptase (immuno 2) and MiTF (immuno 3).
 

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