title: [Persistent or recurrent hyperparathyroidism in periodically hemodialyzed patients. Value of preoperative cervical ultrasonography. 6 cases].
abstract: In 2 cases of recurrent secondary hyperparathyroidism and 4 cases of persisting secondary hyperparathyroidism observed in patients treated by chronic haemodialysis, 8 hyperplastic parathyroid masses and 1 parathyroid adenoma, all located in the lower part of the neck, were removed after percutaneous ultrasonographic detection. There were 7 true positive and 1 unexplained false positive results. In 1 out of the 2 false negative results, the mass located behind the esophagus could not be detected because of the laryngotracheal gas. Two masses located inside the thyroid gland and a 5th hyperplastic gland were correctly identified by ultrasound. Two reluctant patients accepted a new cervicotomy because of the ultrasound reports. The reports played a prominent role in the operative technique in 3 cases.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D006962:Hyperparathyroidism, Secondary / Q000175:diagnosis* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D010280:Parathyroid Glands / Q000503:physiopathology / Q000601:surgery / Q000637:transplantation; D012008:Recurrence; D006435:Renal Dialysis; D012086:Reoperation; D014463:Ultrasonography
vernacular_title: Hyperparathyroïdies persistantes ou récurrentes des hémodialysés périodiques. Intérêt de l'échographie cervicale préopératoire. Six observations.