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Hair Follicle Nevus with Hyperplasia of Smooth and Striated Muscle
Author(s) -
Kirihara Yoshinobu,
Suenaga Yoshinori,
Take Nobuaki
Publication year - 1990
Publication title -
the journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 65
eISSN - 1346-8138
pISSN - 0385-2407
DOI - 10.1111/j.1346-8138.1990.tb03013.x
Subject(s) - dermis , hair follicle , stain , anatomy , reticular dermis , hyperplasia , pathology , reticular connective tissue , h&e stain , immunohistochemistry , chin , biology , medicine , staining , endocrinology
We report a peculiar nevus which occurred on the left side of the chin of an 18‐year‐old male. It had been present for four years and had grown rapidly during the last year. Histologically, many hair follicles, smooth muscles, and striated muscles were found within the reticular dermis. The hair follicles were accompanied by mature sebaceous glands; numerous eccrine glands were seen in the middle and deep dermis. Immunohistochemical stain and phosphotungstic acid hematoxylin stain supported the fact that the muscles seen between the follicles were both smooth and striated. This nevus was considered to be a hair follicle nevus accompanyed by hyperplasia of smooth muscles and striated muscles.