Partially thrombosed fusiform inferior thyroid artery true aneurysm mimicking a thyroid nodule

Abstract

Aneurysms of the inferior and superior thyroid arteries are extremely rare. They might be related to atherosclerosis or might occur secondary to trauma or interventional procedures.(1-5) Unruptured aneurysms may present with swelling of the neck, dysphagia, and hoarseness due to recurrent laryngeal nerve compression.(1) Ruptured aneurysms, conversely, may present with mediastinal hemorrhage and hypovolemic shock.(1) Diagnosis of inferior and superior thyroid artery aneurysms are usually made by computed tomographic or angiographic studies or both. Color Doppler sonography may also depict this vascular condition.(2)