Date of Presentation:4/08/2021

Attending pathologist: Anil Parwani, MD, PhD

Presented by: Bindu Challa, MD

Prepared by: Bindu Challa, MD

Organ:Kidney

HISTORY:

A male in his 70s presents with right flank pain. CT Abdomen and Pelvis showed a large right renal mass with direct invasion of the right hepatic lobe and likely tumor thrombus in the right renal vein and possible artifact/non-occlusive thrombus in the suprarenal IVC. He was followed up with right radical nephrectomy with regional lymphadenectomy.

GROSS:

Microscopic image possibly detecting cancerous areas in human tissue
Microscopic image possibly detecting cancerous areas in human tissue
Microscopic image possibly detecting cancerous areas in human tissue
Microscopic image possibly detecting cancerous areas in human tissue
Microscopic image possibly detecting cancerous areas in human tissue
Microscopic image possibly detecting cancerous areas in human tissue
Microscopic image possibly detecting cancerous areas in human tissue

What is the most likely diagnosis?

  1. Wilms tumor
  2. Leiomyosarcoma
  3. Primary Renal Ewing Sarcoma
  4. Sarcomatoid renal cell carcinoma
  5. Primary Renal Synovial Sarcoma
Primary Renal Synovial Sarcoma

CASE SUMMARY