ADENOSQUAMOUS CARCINOMA OF THE FACIAL BONES, SKULL BASE, AND CALVARIA- CT AND MR MANIFESTATIONS

A 62-year-old woman had proptosis of the right eye, decreased visual a cuity of the left eye, and no other focal neurologic deficits. She had had a grand mal seizure 1 month before admission, The CT and MR studi es showed extensive bone destruction of the margins of the right orbit , the floor of the middle cranial fossa, the right cavernous sinus, an d much of the calvaria. There was considerable dural disease and tumor in the right orbit, paranasal sinuses, and scalp, as well as mucocele s of the left ethmoidal sinus with desiccated secretions. The diagnosi s was adenosquamous carcinoma, an aggressive tumor related to both squ amous cell carcinoma and adenocarcinoma.