Figure 2: (a) Hematoxylin and eosin stain (X50): Renal tissue with variably angulated and dilated blood vessels, distributed in a copious hyaline fi brous matrix. The spindle cells in the stroma did not show any atypia or pleomorphism. (b) Human melanoma black 45 immunostaining (X200): Negative, rules out angiomyolipoma