A 14-year-old boy visited the emergency department (ED) with a 1-month history of progressive difficulty opening his jaw and moderate pain when chewing. He reported having suffered a maxillofacial trauma 4 weeks earlier when he accidentally collided with a glass window after fainting. He had previously presented to his local hospital, where a left facial hematoma had been drained and a 1-cm incised wound had been sutured on his left cheek. Initial examination showed a scar on the cheek and revealed a limitation to open his mouth (1 cm), with deviation of the jaw to the left side and pain when moving the jaw. There was no facial paralysis or anesthesia. The palpation of his oral cavity was normal. The rest of his medical history was not contributory. A panoramic radiograph that was initially obtained in the ED revealed a partially radiopaque and well-defined rectangular image of approximately 3.5 cm in length in the tuberosity of the left maxilla (Figure 1). A non-contrast computed tomography (CT) scan was ordered.
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Published online: June 20, 2019
Accepted: April 19, 2019
Received: April 10, 2019
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