Testicular Metastasis as the Initial Presentation of Colorectal Adenocarcinoma: A Case Report

Non-lymphomatous cancers metastasizing to the testis are rare and typically occur in the context of widespread advanced disease. This report highlights a unique case where a testicular mass was the sole presenting feature of an undiagnosed colorectal adenocarcinoma. A 64-year-old man presented with right scrotal swelling, and histopathological analysis revealed metastatic adenocarcinoma of colorectal origin. Subsequent imaging confirmed a sigmoid tumor with liver and peritoneal metastases. This case underscores the importance of considering metastatic colorectal cancer in the differential diagnosis of testicular masses, even in the absence of gastrointestinal symptoms. Comprehensive histopathological and imaging evaluations are critical for accurate diagnosis and effective management.