Forearm cutaneous metastasis of rectal adenocarcinoma: a case report

Cutaneous metastases are a rare entity and those resulting from metastatic colorectal cancer ac- count for 4-6,5% of cases. Many mechanism for cutaneous metastases have been hypothesized. They could occur through lymphatic and hematogenous spread, direct extension of tumor and for surgical implantation. We report the story of a 56-years-old woman who developed a skin metastasis in an unusual site, the dorsal surface of the right forearm, 5 years after diagnosis of a rectal adenocarcinoma. The lesion was radically excised and the histopathological examination showed an adenocarcinoma compatible with rectal origin, positive for cytokeratin 20 and CDX2. Systemic chemotherapy has being administered due to lung and bone metastese