Intraosseous angiolipoma of head of humerus - An extremely rare entity, with review of literature

Abstract

Lipoma is a common soft tissue tumor. There are only very few reported cases of intraosseous lipoma in the literature. Intraosseous
angiolipomas are even rarer. Angiolipomas are benign tumors consisting of mature adipose tissue and abnormal vessels that occur in
patients during their teens or early twenties. Most are found as multiple lesions, often located on the arm or trunk. Predominantly,
they are subcutaneous lesions; intraosseous angiolipomas are primarily found in the mandible, ribs, and calvarium. Exact nature of
these lesions is debatable. To the best of our knowledge, this is the first reported case of intraosseous angiolipoma of the head of
humerus and 9th in the series of reported cases of intraosseous angiolipoma including four of mandible, two of ribs, and two of skull.