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Course: A Mass in the Infratemporal Fossa

CME Credits: 1.00

Released: 2022-03-31

A 51-year-old woman was referred for evaluation of headache, right-side jaw pain, paresthesia, and trismus. The patient reported that the facial and jaw symptoms had evolved gradually over the past 5 years and that multiple medical therapies had provided only minimal relief of pain. The patient’s medical history included anxiety, depression, emphysema, hyperlipidemia, migraines, and pseudoseizures. She denied prior head trauma and had no pertinent surgical history. On physical examination, the patient had normal body habitus and reported bilateral tenderness of the temporomandibular joints and paresthesia of the right trigeminal nerve in the V2 and V3 distribution with intact masseteric nerve and symmetric facial nerve. Audiometric evaluation showed normal hearing bilaterally. Magnetic resonance imaging (MRI) revealed a cystic mass in the right side of infratemporal fossa (ITF) that was nonenhancing on T1 sequencing with contrast and hyperintense on T2 (A).


Educational Objective
Based on this clinical scenario and the accompanying image, understand how to arrive at a correct diagnosis.


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