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Case 365

Surgical Pathology Case



  50 years old female, 6 to 12 month history of intermittent fever and occasional flank pain. Lab studies were non-contributory except for a positive urine culture for E. Coli. CT showed a left renal mass.



An 8.0 cm unencapsulated mass was noted in the superior pole of the kidney. The cut surface was tan-yellow and necrotic. A staghorn calculus was present in the renal pelvis. The mass involved the adjacent adipose tissue.


HE, 2

HE, 4


HE, 10

HE, 20


HE, 20

HE, 20


HE, 40

HE, 40


HE, 40



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Source:PIP, 2006-17

Photo: Zenggang Pan

Discussion: Zenggang Pan