MR of vascular smooth muscle lipoma is usually said to be the MRI presentation of vascular smooth muscle lipoma. The mass is usually large, classically round, encapsulated, and has heterogeneous signal. The fatty portion is high signal on both T1, T2 signal lines, and the mass is unevenly enhanced on enhancement scans, and the diagnosis that needs to be further differentiated is vascular smooth muscle lipoma. It consists of subcutaneous nodules of mature adipocytes interspersed with small thin-walled blood vessels, some of which have fibrinous thrombosis. Angiomyolipomas usually appear as multiple small subcutaneous nodules, usually with tenderness or conscious pain, with relatively unremarkable symptoms, and are detected on routine physical examination or during other ancillary tests, often occurring in the fat, muscle layers or near blood vessels. If larger angiomyolipomas are formed, corresponding pain or occupying effect and compression symptoms may occur, and they can be treated with appropriate surgical methods under the guidance of doctors according to their own conditions.