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Nevus Syringocystadenomatosus Papilliferus. Presented by Drs. Sidney Barsky and Gerald Bernstein.
The patient, an 81-year-old Negro, has had a small, firm, elevated lesion on his left forehead since birth. It is neither painful nor tender but is easily traumatized and has been intermittently eroded over all or part of the surface.This is a roughly oval, hemispheric, firm, verrucous, hyperpigmented lesion measuring about 1.5 × 3 cm. The surface is studded with vesicopustules, and the lower pole is presently eroded.
The section revealed moderate acanthosis. The dermis was completely replaced by numerous cystic invaginations with papillary projections in the lumen. The wall of the cysts and of the papillae was lined by two layers of cells, the one close to the lumen showing tall, columnar cells with secretory activity and the one at the base showing small, myoepithelial cells. The stroma between the cystic structures and that of the
CHICAGO DERMATOLOGICAL SOCIETY. Arch Dermatol. 1964;90(1):109–110. doi:10.1001/archderm.1964.01600010115030
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