Basicmedical Key

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:…

Paraganglioma-like Dermal Melanocytic Tumor David Cassarino, MD, PhD Cyril Fisher, MD, DSc, FRCPath Key Facts Terminology Paraganglioma-like dermal melanocytic tumor (PLDMT) Rare dermal-based, low-grade melanocytic tumor with histologic similarities to…

Dermal Melanocytoses (Nevus of Ota and Ito, Mongolian Spot) Christine J. Ko, MD Key Facts Clinical Issues Nevus of Ota and Ito and Mongolian spot Often evident at birth Occasionally…

Halo Nevi David Cassarino, MD, PhD Key Facts Terminology Nevus with clinically depigmented halo surrounding pigmented area Clinical Issues Usually young patients (children and young adults) In older patients, should…

Combined Nevi Christine J. Ko, MD Key Facts Terminology Presence of 2 or more distinct populations of melanocytes or Presence of 2 or more types of melanocytic nevi Clinical Issues…

Cellular Blue Nevi Soheil Sam Dadras, MD, PhD Olubukola Babalola Key Facts Terminology Cellular variant of blue nevus Clinical Issues Occurs in children and young adults Heavily pigmented black/blue nodule…

Blastic Plasmacytoid Dendritic Cell Neoplasm Aaron Auerbach, MD, PhD Key Facts Terminology Tumor of plasmacytoid dendritic cells, often involves the skin and bone marrow, and disseminates to blood Clinical Issues…