Case 195

Surgical Pathology Case
 

CLINICAL INFORMATION

  4-year-old boy. Abdominal and lower back pain. Ultrasound showed a solid mass enhancing the left kidney.

GROSS DESCRIPTION

 

The nephrectomy specimen measures 25.5  12.5  6.5 cm and weighs 535 grams. In the upper pole of the kidney, there is a 5.5  4.2  2.5 cm thinly encapsulated mass with a solid, trabeculated bright yellow cut surface and a central region of white fibrous tissue.

     
 
 

HE, 2

HE, 4

 
 

HE, 10

HE, 20

 
 

HE, 20

HE, 40

     
 

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Source: Department of Pathology, Creighton University Medical Center, Omaha, NE

Photo: Zenggang Pan

Discussion: Zenggang Pan