Metastatic Renal Cell Carcinoma Causing Small Intestinal Polyps with Intussusception: A Report of Two Cases.

Renal cell carcinomas have diverse clinical presentations. Patients may present with metastatic symptoms at the time of diagnosis or years after resection of primary tumour. Small intestine is a rare site for metastatic renal cell carcinoma. Presentation as polypoid metastasis with intussusception is extremely rare. Here, we report two cases with this rare presentation. Case 1 was a 65-year-old male with multiple polypoid metastasis causing intussusception while on palliative chemotherapy for renal cell carcinoma. Case 2 was a 68-year-old female with history of nephrectomy presenting with single polypoid metastasis causing intussusception.