Primary Dermal Melanoma

Primary Dermal Melanoma

David Cassarino, MD, PhD

Low magnification of a PDM shows a well-circumscribed, dermal-based nodule, mimicking metastatic melanoma. Note the grenz zone image separating the tumor from the overlying epidermis.

High magnification of PDM typically shows marked cytologic atypia and multiple mitotic figures image.



  • Primary dermal melanoma (PDM)


  • Dermal &/or subcutaneous melanoma


Jul 8, 2016 | Posted by in PATHOLOGY & LABORATORY MEDICINE | Comments Off on Primary Dermal Melanoma
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