Make the Diagnosis: A Blue-Black Facial Nodule — What’s Your Best Guess?

Presentation

A 64-year-old postal worker visited his doctor about a lesion that he first noticed on his face 2 months prior. On examination, a shiny, eroded, blue-black nodule was seen on his right cheek. Histopathology examination showed aggregates of melanin and melanocytes within sheets of basaloid keratinocytes with peripheral palisading and surrounding clefts within a fibromyxoid stroma containing melanophages.


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Learnings

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