Patients present with a slow-growing, painless, solitary mass, usually of the subcutaneous tissues. It is much less frequently noted in the intramuscular tissue. It is not uncommon for symptoms to be present for years. Benign neoplasm with brown fat is noted.
Hibernoma
Lipoma
Glucagonoma
Sebaceous adenoma
Insulinoma
Gastrinoma
Granular cell tumor
Angiolipoma