Sinonasal undifferentiated carcinoma
Sinonasal undifferentiated carcinoma is a rare and aggressive malignancy (cancer). The cells of the cancer look so abnormal under the microscope that it can be difficult to tell what type of cancer it is.
Unlike many sinonasal tumors, patients often exhibit early symptoms like pain, bulging eyes and nerve problems, which develop as a result of rapid, extensive local involvement of the eye socket and cranial base.
Learn more at the New York Head and Neck Institute.