Angiomyolipoma of the bladder.
Angiomyolipoma of the bladder is an extremely rare neoplasm. We report a case of a 55-year-old woman with an angiomyolipoma of the bladder visualized on pelvic sonogram as a 5 mm polyp in the floor of the bladder. The lesional tissue consisted of spindle cells, epithelioid cells, and adipocytes, with occasional thick-walled blood vessels. Immunohistochemical studies showed the spindle and epithelioid cells to be focally positive for HMB-45 and diffusely positive for actin and muscle cell antigen (HHF-35), which confirmed the diagnosis of angiomyolipoma. A review of the recent literature on the pathogenesis of angiomyolipoma follows.
Published In/Presented At
Huan, Y., Dillon, R. W., & Unger, P. D. (2002). Angiomyolipoma of the bladder. Annals of diagnostic pathology, 6(6), 378–380. https://doi.org/10.1053/adpa.2002.36655
Medicine and Health Sciences
Department of Pathology and Laboratory Medicine