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Clear cell renal cell carcinoma

Case contributed by Bruno Di Muzio
Diagnosis certain

Presentation

Incidental finding in the right kidney.

Patient Data

Age: 80 years
Gender: Male

CT Abdomen and pelvis (IVP)

ct

Right kidney upper pole cortical heterogeneously enhancing mass. 

US-guided renal core-biopsy

ultrasound

The right kidney upper moiety nodule has been identified by ultrasound and a safe approach with the patient laying on his left side was considered. US-guided core biopsy using a 19/18G co-axial needle was performed. No complications. 

Case Discussion

Typical imaging features of a renal cell carcinoma. The clear cell or conventional type of RCC represents 70-80% of the cases. 

MACROSCOPIC DESCRIPTION: "(R) kidney mass": Five tissue core fragments with length ranging from 3mm to 7mm.

MICROSCOPIC DESCRIPTION: Several of these cores are made up of sheets of clear cells with slight nuclear size and shape variation and with single nucleoli which are generally not prominent.

DIAGNOSIS: "(R) kidney mass": Renal clear cell carcinoma of usual type (grade I out of IV, WHO).

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