[Unusual case of acute suppurative thyroiditis]

Acute suppurative thyroiditis is an acute disease of the thyroid gland. In this paper the authors report a case of acute suppurative thyroiditis complicated by abscessual evolution in an addict patient study with ultra-sonography and treated with fine needle aspiration and antibiotic therapy. The patient reached our observation for a swelling of the neck. Ultrasonography showed diffuse hypoechogenicity in both thyroid lobes and mixed nodule with hyperechoic trabeculas inside. This nodule underwent fine needle aspiration (FNA) for cytologic and cultural evaluation. Diagnosis was acute suppurative thyroiditis. Ultrasonography presented features similar to other thyroid pathology (sub-acute thyroiditis, haemorrhagic cyst, thyroid lymphoma and anaplastic carcinoma). In our case none of the ultrasonographic features were diagnostic except hyperechoic trabeculas inside. Ultrasonographic features of acute suppurative thyroiditis are very rare in the literature. Ultrasonography and fine needle aspiration are the only methods that confirm this diagnosis.