A giant infiltrating angiolipoma of the thigh: a case report

Abstract

Background: Common vascular lipoma variants, such as angiolipoma, comprise 5–17% of all lipomas. They are categorized into two types: noninfiltrating and rare, deeper infiltrating forms that affect deep soft tissues and skeletal muscle. Young adults with the noninfiltrating type typically have it on their trunk and extremities, most frequently on the forearm. The World Health Organization (WHO) has identified deep infiltrating angiolipomas as intramuscular hemangiomas. The purpose of this case report was to describe a unique instance of a giant thigh angiolipoma that had infiltrated. Case report: A 9-year-old boy patient complained of a lump on the left thigh that was felt about 3 years ago. The lump has grown larger and painful in the last 6 months. He had no history of illness related to her current lump complaint of the thigh. In addition, he also denied any history of trauma. Magnetic Resonance Imaging (M.R.I.) displays hyperintense heterogeny mass with fat and flow void components on T1WI/T2WI/T2STIR. Histopathology signifies mature fat cells that penetrate the surrounding blood vessels, which are accompanied by fibrous connective tissue, indicating an intramuscular-infiltrating angiolipoma. Conclusion: We present a unique instance of a giant infiltrating thigh angiolipoma. Since angiolipoma is an uncommon histological type of giant lipoma, it should be considered in the differential diagnosis.