ABSTRACT
Thyroid hemiagenesis of one lobe of the thyroid is a rare congenital anomaly in which one lobe of the thyroid gland fails to develop. It is more frequently found in women than in men, and absence of the left lobe is more common. The variations of prevalence of the anomaly have been reported to be around 0.05~0.2%. Patients with thyroid hemiagenesis are usually asymptomatic and discovered incidentally with other pathologic condition such as a benign adenoma, multinodular goiter, hyperthyroidism or carcinomas. We report a 29-year-old woman with an incidentally discovered hemiagenesis of the right thyroid.
Subject(s)
Adult , Female , Humans , Male , Adenoma , Carcinoma , Goiter , Hyperthyroidism , Prevalence , Thyroid Gland , Thyroid NeoplasmsABSTRACT
Thyroid anomaly are rare embryological condition. The failure of the development of one lobe leading to unilateral agenesis is the rarest of all the thyroid anomalies, The cause of unilateral agenesis is unknown. Thyroid hemiagenes is common in females (3: 1) with the left lobe being absent. The common disease in the remaining lobe is a benign adenoma, a multinodular goiter, hyperthyroidism, chronic thyroiditis, and rarely carcinoma. The most common pathology involved in thyroid hemiagenesis is hyperthyroidism. This report the case of a 57-year-old woman with a right thyroid hemiagenesis.