Incidental Renal Cell Carcinoma in Pelvic Malignancies.

Simultaneous diagnosis of renal cell carcinoma with pelvic malignancies is rare but a well-documented phenomenon. It is not uncommon to have incidental renal masses on imaging done for investigating other tumors. There are no established guidelines for the treatment of patients with dual malignancies. The management of such patients is challenging and requires a multidisciplinary approach. We present a series of three cases with a diagnosed pelvic malignancy but further workup revealed a kidney tumor. Both the malignancies were evaluated individually and diagnosed as two different primary neoplastic lesions. This case series examines each distinct patient's presentation, discusses the diagnosis, and compares and contrasts the findings while discussing the literature on this topic.