Tumors are the most frequent pathological pattern found in the peripha
ryngeal space. Topographically, intrinsic and extrinsic tumors can be
distinguished. Intrinsic tumors are mostly salivary, nervous and vascu
lar. Extrinsic tumors extend from the oral cavity, pharynx and parotid
gland. MRI globally gives more impressive results than CT. Diagnosis
of the tumor type often remains doubious in intrinsic tumors. CT-guide
d biopsy is then required.