www.PRSGlobalOpen.com 1 Hiroshi Fujimaki, MD

Lipoma, a soft-tissue tumor derived from the stro-ma, is the lesion most frequently encountered by plastic surgeons in clinical practice. In the head and neck region, lipomas commonly develop in the buccal mucosa, tongue, and parotid region,1,2 but an extremely small number of studies on only 3 cases of lipomas in the mental region, or chin, have been reported. We recently experienced a rare case of an intramuscular lipoma in the mental region. A 35-year-old woman noticed a painless mass in the mental re-gion 3 months before she visited our department for cosmetic improvement, with the concern that the mass may enlarge. Her previous medical history and family history were unremarkable. Macroscopic ob-servation and palpation revealed a poorly movable mass of 10 × 10 mm at the center of the mandibl