Cystic spaces component was filled with the blood clots and wasn’t lined by any epithelium; the tumor was located between the cystic spaces and renal cortex,maximum diameter was about 4.7 mm, (Fig A) Original magnification × 3.7. Scale bar 10 mm. Fig B Original magnification × 12.5. Scale bar 5 mm.
Zhang et al. Diagnostic Pathology 2012 7:126 doi:10.1186/1746-1596-7-126