Date of Presentation:9/08/2025
Attending pathologist: Anil Parwani, MD, PhD, MBA
Presented by: Rebecca Reese, BS, MLS (ASCP)
Prepared by: Rebecca Reese, BS, MLS (ASCP)
Organ:Kidney
HISTORY:
Patient is a female in her 20s who presented with abdominal and back pain found to have a right renal mass. MRI showed a 4.1cm multi-cystic mass arising from the lower pole of the kidney. The patient then proceeded with robotic right partial nephrectomy (lower pole heminephrectomy).
What is the most likely diagnosis?
- Cystic nephroma
- Mixed epithelial and stromal tumor
- Synovial sarcoma
- Angiomyolipoma with epithelial cysts
Mixed epithelial and stromal tumor