A case of ectopic parathyroid gland hyperplasia in the pyriform sinus.
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.
Fukumoto
Akira
A
Department of Otolaryngology, Chiba Hokusoh Hospital, Nippon Medical School, 1715 Kamakari, Inba-mura, Inba-gun, Chiba 270-1694, Tokyo, Japan.
Nonaka
Manabu
M
Kamio
Tomonobu
T
Kamura
Eriko
E
Ozu
Chika
C
Baba
Shunkichi
S
Ohaki
Yoshiharu
Y
D000328:Adult; D002828:Choristoma / Q000175:diagnosis / Q000473:pathology*; D005260:Female; D006801:Humans; D006961:Hyperparathyroidism / Q000473:pathology / Q000601:surgery; D006965:Hyperplasia; D007828:Laryngoscopy; D010280:Parathyroid Glands; D016105:Parathyroidectomy; D010608:Pharyngeal Diseases / Q000175:diagnosis / Q000473:pathology*