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Angiomyolipoma seen as a hyperechoic mass in the upper pole of an adult kidney on renal ultrasonography. Renal ultrasonography of a person with tuberous sclerosis and multiple angiomyolipomas in the kidney: Measurement of kidney length on the US image is illustrated by '+' and a dashed line. CT scan of a renal angiomyolipoma.
Angiolipoma is a subcutaneous nodule with vascular structure, having all other features of a typical lipoma.They are commonly painful. [1]: 624 [2] Angiolipomas manifest as multiple painful subcutaneous nodules commonly on the upper limbs.
Neoplasms are the most common underlying pathology in up to 60% of cases and include renal angiomyolipoma and renal cell carcinoma. Other causes include rupture of renal artery or an arteriovenous malformation, polyarteritis nodosa , cystic medial necrosis , segmental arterial mediolysis , and cystic rupture.
A lipoma is a benign tumor made of fat tissue. [1] They are generally soft to the touch, movable, and painless. [1] They usually occur just under the skin, but occasionally may be deeper. [1]
Angioleiomyoma; Other names: Angiomyoma, vascular leiomyoma: Angioleiomyoma, smooth muscles encircling dilatated blood vessels Specialty: Oncology, rheumatology : Symptoms: Pain (with or without tenderness), slow-growing benign mass in the subcutaneous region of the extremities.
M8860/0 Angiomyolipoma M8861/0 Angiolipoma, NOS M8862/0 Chondroid lipoma M8870/0 Myelolipoma M8880/0 Hibernoma Fetal fat cell lipoma; Brown fat tumor; M8881/0 Lipoblastomatosis Fetal lipoma, NOS; Fetal lipomatosis; Lipoblastoma
Post-operatively, the presence of renin granules in pathology specimens as well as immunohistochemical analyses could help differentiating this tumor from other primary renal tumors such as hemangiopericytoma, glomus tumor, metanephric adenoma, epithelioid angiomyolipoma, Wilms tumor, solitary fibrous tumor, and some epithelial neoplasms. [6] [8]
Although it is a benign tumour and does not invade neighbouring tissues, it has a tendency to recur after surgical excision so it is termed "aggressive". Recurrence can occur as early as six months from initial resection.