limbal mass as a presentation of parotid gland undifferentiated carcinoma: a case report

Metastatic neoplasms to the ocular surface are extremely rare. here, we describe a case of a 56-year-old man developed simultaneously a limbal and parotid gland masses in his left side. he underwent excisional biopsy of limbal mass, parotidectomy, and systemic evaluation. histopathologically, multislice sections of both limbal and parotidal masses disclosed an undifferentiated carcinoma of both sites. further evaluation revealed no other site of involvement and metastasis. the patient underwent systemic chemotherapy and local radiotherapy for parotid gland tumor. distal metastasis from undifferentiated carcinoma of the parotid gland to ocular surface is very rare and to the best of our knowledge has not been previously reported. this is the first report of the manifestation of metastasis from undifferentiated carcinoma of parotid gland origin to the limbus. the limbal mass may be the initial manifestation of metastasis from this origin and should be considered in the differential diagnosis of a metastatic limbal tumor.