title: Gonadal damage due to radioactive iodine (I131) treatment for thyroid carcinoma.
abstract: Papillary carcinoma of the thyroid is the most common type of thyroid cancer and is associated with a good prognosis. Complications of treatment with surgery and radioiodine are uncommon. We report the case of a 13 year old boy who developed testicular damage following treatment with radioactive iodine 350 mCi for a papillary carcinoma of the thyroid. Four years after radioiodine treatment there has been no suggestion of recovery of spermatogenesis. Detailed follow-up studies of similarly treated young patients are required to define the incidence of this complication and to determine its reversibility.
mesh_terms: D000293:Adolescent; D002291:Carcinoma, Papillary / Q000532:radiotherapy*; D006801:Humans; D007457:Iodine Radioisotopes / Q000009:adverse effects* / Q000627:therapeutic use; D008297:Male; D011832:Radiation Injuries / Q000209:etiology*; D013091:Spermatogenesis / Q000528:radiation effects; D013733:Testicular Diseases / Q000209:etiology*; D013964:Thyroid Neoplasms / Q000532:radiotherapy*
chemical_list: D007457:Iodine Radioisotopes