Primary Ocular Caruncular Basal Cell Carcinoma in a Chinese Patient

Although basal cell carcinoma (BCC) is the most common eyelid neoplasm, BCC that originates from the lacrimal caruncle is extremely rare. To the best of our knowledge, only seven cases have been reported and here we report the first documented primary caruncular BCC in an Oriental patient. A 73-year-old Chinese man presented with a telangiectatic, multilobulated, pigmented tumor that measured 5×5 mm, which had arisen from the lacrimal caruncle of the left eye 3 months previously. The patient underwent tumor excision, and histopathological examination revealed BCC. He received adjuvant chemotherapy with intra-arterial methotrexate (30 mg/m2). A nodular pigmented BCC recurred in the bulbar conjunctiva close to the original tumor 3 months later, and he underwent a second excision. Bleomycin (8.5 mg/m2 monthly) was added to the chemotherapy regimen, which was changed to fluorouracil (300 mg/m2 monthly) 2 months later. The tumor did not recur during follow-up of 22 months. Malignant tumors of the caruncle are infrequent. BCC should be considered in the differential diagnosis of a pigmented caruncular lesion.