Pleomorphic Sarcoma, an Atypical Conjunctival Tumor.

Sarcomas are malignant tumors of connective tissue with a mesodermal origin that, in rare occasions, is presented in conjunctiva; undifferentiated pleomorphic sarcoma represents <1% of orbital tumors. It is characterized by not meeting the histologic, immunohistochemical, ultrastructural, or molecular criteria in the classification proposed by the World Health Organization. The authors present the case of an 82-year-old man, blind due to absolute glaucoma, who consulted for a conjunctival mass of a few months' evolution.