Abstract
Metastatic carcinoma of the sphenoid sinus is rare, and that from rectal carcinoma is extremely rare. We describe a case of metastatic sphenoid carcinoma from the rectum. A 49-year-old female visited an ophthalmologic clinic complaining of eye dysmobility and double vision. Tumor of the sphenoid sinus was detected by MRI. She had a past history of rectal carcinoma resected 3 years earlier. She was referred to our hospital from the clinic and biopsy of the sphenoid sinus was performed by intranasal endoscopy. Histologic examination highly suggested that sphenoid sinus adenocarcinoma had metastasized from the rectum. Though radiotherapy and chemotherapy were performed, she died of sphenoid sinus carcinoma about eleven months later.
