This patient went on to have a right partial wedge nephrectomy.
consists of a wedge of kidney measuring 5.5 X 4 X 2.5 cm that came with
a soft fatty nodule bulging on its surface, measuring 13 X 9.5 X 8 cm,
weighing in total 430 g. The external capsule is smooth and shows
tan-purple hemorrhage. Cross section of the nodule shows yellowish fatty
tissues with focal hemorrhage that is surrounded by a well-defined
capsule. The tumor partially replaces the renal parenchyma and
extends into the peri-renal fat.
MICROSCOPY: It has typical features of
angiomyolipoma with smooth muscle spindle cells, at times with an
altered ovoid morphology, admixed and blending with thick-walled blood
vessels and tumor adipose tissue. Occasional compact sheets of the
smooth muscle mesenchymal component are present, with degenerative
nuclear atypia. There is no significant mitotic activity and no evidence
of malignant transformation.
- angiomyolipoma of the kidney.
- tumor size = 13cm.
- acute hemorrhage within tumor.
feature images from this case