Abstract
Testicular metastases in colorectal cancer are rare, and pathogenesis still remains unclear. It tends to occur in late stage of disease and has a poor prognosis. We present a 37-year-old patient complained from abdominal pain with deterioration of performance status and weight loss. Body scan showed a recto sigmoid tumor associated with metastasis in the left liver with pelvic lymphadenopathy and hetero nodular testis. Colonoscopy showed a stenosing upper rectum tumor. Histology concluded to an adenocarcinoma. The patient had a transverse colon resection and a right orchiectomy. Histology concluded to an invasive adenocarcinoma with carcinosis, secondary testicular and hepatic metastasis.