RESUMEN
PURPOSE: To report a metastatic colonic adenocarcinoma in the left upper eyelid. CASE SUMMARY: A 73-year-old male presented to our clinic with a palpable mass in his left upper eyelid that had appeared 10 days prior. The patient had a history of colon cancer that was diagnosed 2 years previously with liver and lung metastases, and he had underwent colon resection followed by chemotherapy. A 10.7 x 14.7 x 9.0 mm mass was observed on orbital computed tomography and a biopsy confirmed that the mass was a metastatic colonic adenocarcinoma. Because radical resection of the mass could not be performed, a debulking surgery was performed instead. The patient was followed up while receiving conservative treatment, but he died 3 weeks after surgery. CONCLUSIONS: Metastatic tumors in the eyelids are very rare and colonic adenocarcinoma metastases in the eyelids are even less common. Thus, a biopsy examination and appropriate treatment should be administered to patients with a history of malignancy who present with an eyelid mass.