title: Hemithyroid agenesis associated with a cervical thymic cyst.
abstract: A case is presented of a 7-yr-old boy with left hemithyroid agenesis associated with cervical thymic cyst. No left parathyroid glands were found. The diagnosis was established after surgical excision and histologic examination. Clinical and embryological implications of this condition are briefly discussed. No similar case has been found in the literature.
mesh_terms: D002648:Child; D006801:Humans; D008297:Male; D008476:Mediastinal Cyst / Q000150:complications* / Q000151:congenital / Q000473:pathology; D009333:Neck; D011877:Radionuclide Imaging; D013961:Thyroid Gland / Q000002:abnormalities* / Q000000981:diagnostic imaging