Palisaded Encapsulated Neuroma (PEN)

Abstract

Palisaded encapsulated neuroma (PEN), while not an uncommon benign neural tumor of the dermis, is nevertheless often misdiagnosed clinically and histologically. A case of PEN of the skin is presented with a brief review of the literature. Distinguishing features from other benign neural tumors of the skin, in particular schwannoma and neurofibroma, are emphasized.