# Synchronous Primary Gallbladder Cancer and Ipsilateral Renal Cell Carcinoma: A Case Report

## TL;DR

A rare case of a patient having both gallbladder cancer and kidney cancer at the same time is reported, emphasizing the need for accurate diagnosis and teamwork in treating such complex cases.

## Contribution

This case report adds to the limited literature on the rare synchronous occurrence of gallbladder and renal cancers.

## Key findings

- A 57-year-old male was diagnosed with both gallbladder carcinoma and ipsilateral renal cell carcinoma.
- The patient underwent combined laparoscopic cholecystectomy and nephrectomy with confirmed distinct malignancies.
- The case underscores the importance of multidisciplinary approaches in managing rare synchronous cancers.

## Abstract

The synchronous occurrence of primary gallbladder carcinoma and ipsilateral renal cell carcinoma is exceptionally rare. Such presentations pose significant diagnostic challenges, particularly in differentiating synchronous primary tumors from metastatic disease. We report the case of a 57-year-old male patient who presented to the clinic in October 2025 with right upper quadrant abdominal pain and was found to have both gallbladder carcinoma and a right renal mass. Comprehensive imaging confirmed two distinct primary malignancies. The patient underwent laparoscopic radical cholecystectomy combined with radical right nephrectomy. A pathological analysis was performed, which showed that the process was gallbladder cancer and renal cell carcinoma. The patient is now under follow-up. This report highlights the importance of accurate diagnosis and multidisciplinary management of rare synchronous malignancies.