HISTORY:
A male in his early 20’s presented to ED for scrotal pain
Concern for kidney stone resulted in a non-contrast CT
CT scan revealed hyperdense mass of the lower pole of the L kidney (2.6cm) and a R soft tissue mass, thought to be a “lymph node”, medial to the R renal hilum (2.7cm x 2.6cm)
Concern for metastatic disease, as masses are bilateral
Biopsy of the R “lymph node” was performed
GROSS:
What is the most likely diagnosis?
- Gastrointestinal stromal tumor (GIST)
- Angiomyolipoma
- Metastatic renal clear cell carcinoma from the L kidney
- Paraganglioma