Myopericytoma-type Perivascular Myoma Arising on the Auricle of the Ear.
- Author:
Ho Youn KIM
1
;
Hyun Jung LIM
;
Byung Cheol PARK
;
Seok Jong LEE
;
Byung Soo KIM
;
Weon Ju LEE
;
Do Won KIM
;
Ghil Suk YOON
Author Information
1. Department of Dermatology, Kyungpook National University School of Medicine, Daegu,Korea. seokjong@knu.ac.kr
- Publication Type:Case Report
- Keywords:
Ear;
Myopericytoma;
Perivascular myoma
- MeSH:
Actins;
Adult;
Ear;
Extremities;
Humans;
Muscle, Smooth;
Myocytes, Smooth Muscle;
Myofibromatosis;
Myoma;
Pericytes;
Skin
- From:Korean Journal of Dermatology
2009;47(11):1304-1308
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The concept of perivascular myomas was recently proposed to designate perivascular myoid tumors arising from pleuripotent perivascular cells like smooth muscle cell cells, pericytes and glomus cell. They represent a histological continuum between three categories; myofibromatosis, glomangiopericytoma and myopericytoma. Myopericytoma is a rare, soft tissue tumor that primarily occurs in the skin and the subcutaneous and soft tissues of the extremities, but very few cases have been reported in other locations, which occurred in our present case. We herein report on a rare case of myopericytoma that developed on an unusual location, that is, the ear. The patient was a 35-year-old man who had a painless, slowly-growing red nodule on the upper auricle of the right ear for 5 years. The nodule was revealed to be a well-circumscribed mass composed of round to oval cells that strongly expressed smooth muscle actin. These cells were arranged in the concentrically multilayered pattern and they were surrounded by small to medium-sized vessels.
