Rare Renal Malignancies: A Case Series Highlighting Uncommon Presentations and Their Management Strategies

This case series elucidates renal cell carcinoma characterized by three distinct presentations, necessitating individualized treatment strategies tailored to each specific circumstance. The three cases presented pertain to clear cell renal cell carcinoma. The first case involves a 44-year-old male patient with renal cell carcinoma in an ectopic kidney, an exceedingly rare occurrence with limited literature. An open transperitoneal radical nephrectomy was undertaken. The second case pertains to a 33-year-old male patient with renal cell carcinoma situated in the lower pole of the left kidney for which partial nephrectomy was planned and performed. The third case concerns a 57-year-old male patient with renal cell carcinoma found in the right lower pole of the kidney, involving invasion into the inferior vena cava (IVC). A radical nephrectomy with tumor thrombectomy was meticulously planned and successfully performed.