Renal cyst - Bosniak IV

Case contributed by Mohammad Taghi Niknejad
Diagnosis certain

Presentation

Abdominal pain and hematuria.

Patient Data

Age: 45 years
Gender: Male
ct

An 80 × 70 × 65 mm partially exophytic cystic lesion is present at the lateral aspect of the left kidney which shows enhancing solid component and several small foci of calcifications (Bosniak category IV). There is no sign of local invasion to adjacent structures and no regional lymphadenopathy. Mild degenerative changes as osteophytes are seen at the lumbar spine.

Case Discussion

Left renal cystic lesion (Bosniak category IV) - pathologically proven renal cell carcinoma.

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