A primary cavernous hemangioma of the thyroid gland

RATIONALE Thyroid hemangioma is benign and associated with fine-needle aspiration (FNA) biopsy or trauma in most cases. Its differential diagnosis is very difficult. PATIENT CONCERNS We presented the case of a 48-year-old man complained of slowly progressed swelling in the anterior neck for 20 years. DIAGNOSES Ultrasound and CT scan revealed a hypoechogenic and heterogeneous mass measuring 4 × 3.5 cm located in the right lobe of thyroid gland. Postoperative pathological and immunohistochemical examinations of the surgical specimen revealed a primary hemangioma of the thyroid gland. INTERVENTIONS The patient received a right lobectomy of the thyroid. OUTCOMES The patient had been followed up for 10 months after surgery without complications and remained asymptomatic. LESSONS Primary thyroid hemangioma should be considered when there is a well-circumscribed capsule mass on medical imaging without history of FNA or any other cervical procedures or trauma.