Otology & Neurotology 39:e216–e217 2018, Otology & Neurotology, Inc. Imaging Case of the Month Nadia Saddoud, Salma Kchaou, Asma Louati, and Mohamed Habib Daghfous Hopital Habib Thameur, Tunis, Tunisia Arteriovenous malformations (AVM) of the external combination with other vascular structures (2). Although ear are relatively uncommon lesions. They typically vascular malformations are congenital, they may not be present during childhood. Some of them may remain observed at birth. Under hormonal influences, trauma, quiescent until adolescence and in some cases into infection or only over the course of time, an AVM can adulthood. Enlargement of the AVM may be triggered grow due to increased blood flow and collateral vessel by trauma, infection, or hormonal influences (1). We formation. Clinically, this high blood flow is responsible report herein a unique case of spontaneous AVM of the for increased warmth, erythema, and edema. Pulsation, external ear clinically revealed in the third decade of life, thrill on palpation, and possible ischemic injuries are due which is a very rare condition. to arteriovenous shunting in a high flow vascular mal- formation (3). In AVM of the external ear, early trophic CASE PRESENTATION disorders and night bleeding are frequent. These lesions are staged by
Otology & Neurotology – Wolters Kluwer Health
Published: Mar 1, 2018
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