New Onset Alacrima as a Presenting Feature of a Skull Base Chondrosarcoma.

Acquired unilateral alacrima as a presenting sign of an intracranial tumor is exceptionally rare, and only described once previously in a case of nasopharyngeal carcinoma. The authors present a 32-year-old female patient who presents with a year-long history of alacrima and arhinorrhea. She was subsequently diagnosed with a petroclival chondrosarcoma extending into Meckel's cave and the cavernous sinus and underwent surgical debulking.