A case of sigmoid colon adenocarcinoma diagnosed as facial cutaneous metastasis for survival after operation for 37 months.

Cutaneous metastasis of an internal malignancy is uncommon and is estimated to occur in 0.7-9% of patients with internal cancer including autopsy cases. We would like to report a case of long survival of sigmoid colon adenocarcinoma diagnosed as an instance of facial cutaneous metastasis. A 68-year-old male was admitted to our hospital for a tumor mass on the left side of his cheek. In his past history, acute myocardial infarction had occurred 2 years earlier. He also had chronic renal failure and chronic obstructive pulmonary disease. Histologic findings from the biopsy sample of this facial lesion were moderately differentiated adenocarcinoma. Colonoscopy revealed a tumor 20 mm × 30 mm in diameter in the sigmoid colon. Histologic findings of the biopsy sample of this tumor also indicated moderately differentiated adenocarcinoma. The patient was diagnosed with sigmoid colon cancer with cutaneous metastasis to the face. We performed a sigmoidectomy with lymph node dissection and resection of the facial cutaneous metastasis. After being discharged, low dose chemotherapy was performed in consideration of the patient's renal function. Although long-term management of his general condition was provided, the patient died 37 months after surgery because of chronic heart failure.