Nevoid Melanoma Soheil Sam Dadras, MD, PhD Key Facts Terminology Uncommon variant of conventional melanoma that looks deceptively benign Clinical Issues Melanoma is not suspected clinically Microscopic Pathology Dome shaped…

Melanoma, Nodular Type Soheil Sam Dadras, MD, PhD Nicole Carreau Key Facts Terminology Nodular, predominantly dermal invasive melanoma Clinical Issues Elevated, firm, rapidly growing nodule Microscopic Pathology Junctional component is…

Pigmented Spindle Cell Nevus (Reed Nevus) David Cassarino, MD, PhD Key Facts Terminology Pigmented spindle cell nevus (PSCN) Pigmented spindle cell nevus of Reed Melanocytic proliferation that is typically predominantly…

Melanoma, Lentigo Maligna Type Soheil Sam Dadras, MD, PhD Nicole Carreau Key Facts Terminology Indolent melanoma subtype that typically evolves slowly Invasive melanoma, lentigo maligna type Clinical Issues Usually occurs…

Melanoma In Situ, Nos Soheil Sam Dadras, MD, PhD Olubukola Babalola David Cassarino, MD, PhD Key Facts Terminology In situ melanoma that cannot be neatly categorized as well-recognized type of…

Atypical/Borderline and Malignant Spitz Tumors David Cassarino, MD, PhD Key Facts Terminology Atypical Spitz tumor (AST) Spitz tumor of borderline/uncertain malignant potential Spitzoid melanoma Clinical Issues Mostly young patients, age…

Melanoma In Situ, Lentigo Maligna Type Soheil Sam Dadras, MD, PhD Key Facts Terminology Melanoma in situ, lentigo maligna type (MIS-LMT) Hutchinson melanotic freckle Clinical Issues Most common on face…

Melanoma In Situ, Superficial Spreading Type Soheil Sam Dadras, MD, PhD Key Facts Terminology Melanoma in situ composed mostly of irregular nests spreading along dermal-epidermal junction Clinical Issues Most common…

Atypical (Dysplastic) Melanocytic Nevi Soheil Sam Dadras, MD, PhD Olubukola Babalola Key Facts Terminology Pigmented lesion with clinical, architectural, and cytologic atypia, characterized into familial and sporadic dysplastic nevi Dysplastic…

Spitz (Spindle and Epithelioid Cell) Nevi Jessica M. Comstock, MD David Cassarino, MD, PhD Key Facts Clinical Issues Benign melanocytic tumor Most common in children and young adults Common sites:…