Nonglomic tumors of the jugular foramen: differential diagnosis and prognostic implications.

Objective: Tumors of the jugular foramen are notably rare, and the majority of them arise from the glomic tissue of the jugular vein. There are other tumors that do not originate from that tissue, and these are called the nonglomic tumors. This report includes a series of patients with nonglomic tumors of the jugular foramen to analyze their biological and radiological behavior and the clinical outcomes of patients.