This shows the greater part of a kidney, and a portion of ureter; the kidney has been cut to display a
tumour occupying approximately half the organ and arising, as can be seen in the lower part of the
specimen, in the renal pelvis. The tumour extends to the surface of the kidney at the upper pole.
This man presented at the age of 65 with Henloch-Schonlein purpura, with spots on the thighs
and haematuria with clots. He had had transient arthritis involving knees and ankles. Following
discharge from hospital, the urine remained discoloured and, on readmission, he admitted to loss of
weight and poor appetite. He had had nocturia and dysuria. A renal biopsy showed a squamous cell
carcinoma, and a IVP, showed a space-occupying lesion in the left kidney. Microscopy showed a
moderately well-differentiated squamous cell carcinoma.