Case for Diagnosis: Intradermal Nevus. Presented by Donald Shasky, MD.
The patient is a 42-year-old white housewife who for approximately one year has been aware of a large macular erythematous lesion in the occipital area of the scalp which has been slightly tender. She has received various local treatments without benefit.Her only medications have been vitamin tablets and vitamin B12 for anemia.
There is a narrow two-to three-inch linear, slightly atrophic, telangiectatic erythematous macular area in the occipital scalp. Hair loss is not evident.
A biopsy specimen was taken from the affected scalp area.
Leo Indianer, MD: Microscopically, there is hyperkeratosis. There are many hair follicles, and compatible with a biopsy specimen taken from the scalp, the hair follicles extend down into the fat. There is a cellular pigmentary change noted at one corner of the section. Under higher power, we can see that these
Sidell CM, Marmelzat WL, Storkan MA, Berke M. THE METROPOLITAN DERMATOLOGICAL SOCIETY OF LOS ANGELES. Arch Dermatol. 1967;96(4):473-474. doi:10.1001/archderm.1967.01610040123023