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An 81-year-old man (Patient 6) with a congenital single kidney with a severe spontaneous retroperitoneal bleeding from a 4 cm angiomyolipoma in the lower pole of left kidney (a,b,c). He was hemodynamically unstable with low blood pressure and had several blood transfusions. About one-quarter of the kidney was selectively embolized and he recovered completely with normal kidney function (eGFR).
