PMC7718312_01
Distorted morphology of the right kidney by the tumour with formation of nodules which appear to be pushing the capsule but without obvious infiltration.
gr1.jpg
PMC7718312_01_gr1.jpg
fig0005
Macroscopically, the tumour was multinodular and had distorted the normal gross appearance of the kidney (Fig. 1).
(a) Diffuse infiltration of the renal parenchyma by a solid tumour with formation of a pseudocapsule (H and E, x40).. (b) proliferation of tumour cells which have pleomorphic and hyperchromatic nuclei (H and E, x100).. (c) The tumour masses are forming papillary pattern with fibrovascular cores (H and E, x200).. (d) Marked pleomorphism of the tumour cells with vesicular nuclei and abundant eosinophilic cytoplasm (H and E, x400).
gr2.jpg
PMC7718312_01_gr2.jpg
fig0010
Psammoma bodies were evident in some areas of the tumour (Fig. 2a-d).