| Literature DB >> 11784259 |
Akira Fukumoto1, Manabu Nonaka, Tomonobu Kamio, Eriko Kamura, Chika Ozu, Shunkichi Baba, Yoshiharu Ohaki.
Abstract
Variability in the location of parathyroid glands is well recognized. There are usually 4 parathyroid glands located in the area of the thyroid gland, but embryologically, they may be found anywhere from the angle of the jaw to the pericardium. We report a case of an ectopic parathyroid gland in the pyriform sinus. It appeared as a tumorous lesion in the pyriform sinus owing to progress of secondary hyperparathyroidism.Entities:
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Year: 2002 PMID： 11784259 DOI： 10.1001/archotol.128.1.71
Source DB: PubMed Journal: Arch Otolaryngol Head Neck Surg ISSN： 0886-4470