A Case of Intramuscular Lipoma on the Forehead / 대한피부과학회지

ABSTRACT

Intramuscular lipoma is a rare, benign uncapsulated tumor. It is also called infiltrating lipoma because of its infiltrative growth pattern which, deeply localized, seizes the skeletal muscle. The only obvious symptom is a palpable mass. Microscopically, fat tissue shows up between the muscle fibers. We report a case of intramuscular lipoma. The patient, a 60-year-old man, developed a nut-sized, painless, skin-colored tumor on the forehead. Laboratory studies were negative or within the normal range. Histopathological findings showed mature lipocytes infiltrate muscle in diffuse manner. The lesion had been excised completely and showed no evidence of recurrence.