Table of Conents

BENIGN LESIONS MASQUERADING AS MALIGNANT MELANOMA; HOW TO RECOGNIZE THE IMPOSTER


SPITZ NEVUS
Shared Histologic Features with Malignant Melanoma


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ARCHITECTURAL
Melanocytes occasionally present above dermoepidermal junction
Variation in size and shape of nests with occasional confluence
Extension of melanocytes around adnexae
Lymphocytic dermal infiltrates
Base of neoplasm irregular

CYTOLOGICAL
Melanocytic atypia
Occasional mitotic figures
Occasional melanocytic necrosis
REFERENCE:

Ackerman AB, Carroni L, Karl H. Pitfals in Histopathologic
Diagnosis of Malignant Melanoma, 1994