Pathogenesis: Lipomas are slow-growing, benign, painless lesions with an exophytic (extending outward) growth pattern. The lesion is a soft tissue, broadly based tumor of adipose tissue with an unknown etiology. Some cases report an occurence of blunt force or soft tissue trauma to the area preceding the development of external lipomas (Aust, et al., 2007).
Approximately two years on average elapse between soft tissue trauma and the development of the lipoma. Lipoma is a benign neoplasm of adipose cells, but has a malignant counterpart called liposarcoma.
Dr. Banić