A woman received radiation therapy to the adenoids for benign disease at the age of 10 years and subsequently developed an adenocarcinoma of the middle ear, a parathyroid adenoma, and a papillary carcinoma of the thyroid gland in adulthood. This appears to be the first such case on record. The liter
Head and neck neoplasia following irradiation for benign conditions
β Scribed by Scanlon, Edward F. ;Sener, Stephen F.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1981
- Weight
- 675 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0148-6403
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β¦ Synopsis
Abstract
A retrospective review of 143 patients with head or neck tumors who had received radiation therapy in the head and neck area for benign conditions during childhood or adolescence was conducted. This included an analysis of 1,080 patients from the Evanston Hospital Irradiated Thyroid Evaluation Clinic, which was established to define the relationship between irradiation and the subsequent development of thyroid neoplasia. The data support the following concepts of irradiationβinduced neoplasia: (1) The thyroid, parathyroid, and salivary glands can develop benign and malignant changes after irradiation for benign conditions, with latent periods averaging about 30 years; (2) Once a glandular abnormality within the irradiated field appears, the risk of other glands in the field developing neoplastic changes is significantly increased.
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Irradiation to the neck increases the prevalence of hyperparathyroidism and may cause parathyroid insufficiency. In this study, 35 patients who received therapeutic irradiation to the neck and a control group comprising 19 patients who received radiation to the bladder were studied before, during, a