[Cutaneous metastases of rectal cancer]

Colorectal carcinoma is a tumour that very infrequently gives rise to cutaneous metastases and when it does so, it is rarely via the haematogenous route. We present the case of a 55-year old male diagnosed with an adenocarcinoma of the rectum (lower third), clinical stage T3N2M0. Initially treated with neoadjuvant radiochemotherapy, he was operated on eight weeks later, with an extended abdominoperineal amputation. The anatomopathological result was mucinous adenocarcinoma of the rectum, clinical stage ypT3bN1. Following a postoperative period without complications, the patient received chemotherapeutic treatment with capecitabine. Eighteen months later the patient reported the progressive appearance of subcutaneous nodules in different localizations. In the computerized tomography test multiple images were objectivized suggesting metastasis at the hepatic and pulmonary levels, as well as subcutaneous lesions. The biopsy-excision of one of the subcutaneous nodules corroborated the suspicion of metastasis of the adenocarcinoma of the rectum. Chemotherapy treatment was considered for the patient, which was not administered due to the rapid deterioration of the patient leading to his death.