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Aberrant Parathyroid and Thymus in the Pharynx

Aberrant Parathyroid and Thymus in the Pharynx Abstract The unusual presence of aberrant parathyroid and thymus tissue found in a child's pharynx recently at the Children's Hospital aroused our interest in the possibility of similiar cases and the circumstances in which they were found. Embryologically the parathyroid glands arise from the dorsal branchial pouches III and IV. In the development of the embryo the parathyroid III moves more caudad than parathyroid IV, and both are usually found at the level of the thyroid gland at the latter's final position in the neck. The thymus develops from the ventral portion of the pouches III and IV, and in a similiar manner migrates to the superior mediastinum during fetal life. Aberrant thymus tissue has been reported a number of times in the literature, its most frequent ectopic site being in the neck. Gilmour1 describes 13 cases of aberrant thymus tissue he had found in the neck, usually in intimate References 1. Gilmour, J. R.: Some Developmental Abnormalities of the Thymus and Parathyroids , J. Path. & Bact. 52:213, 1941. 2. Epstein, H. C., and Loeb, W. J.: Thymic Tumor of the Pharynx , J. Pediat. 47:105, 1955. 3. Barker, V. L., and Brines, O. A.: Hyper-functioning Adenoma of an Ectopic Parathyroid Gland , Arch. Surg. 39:205, 1939. 4. Crotti, A.: Diseases of the Thyroid, Parathyroid and Thymus , Ed. 3, Philadelphia, Lea & Febiger, 1938. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png A.M.A. Archives of Otolaryngology American Medical Association

Aberrant Parathyroid and Thymus in the Pharynx

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References (5)

Publisher
American Medical Association
Copyright
Copyright © 1959 American Medical Association. All Rights Reserved.
ISSN
0096-6894
DOI
10.1001/archotol.1959.00730030320008
Publisher site
See Article on Publisher Site

Abstract

Abstract The unusual presence of aberrant parathyroid and thymus tissue found in a child's pharynx recently at the Children's Hospital aroused our interest in the possibility of similiar cases and the circumstances in which they were found. Embryologically the parathyroid glands arise from the dorsal branchial pouches III and IV. In the development of the embryo the parathyroid III moves more caudad than parathyroid IV, and both are usually found at the level of the thyroid gland at the latter's final position in the neck. The thymus develops from the ventral portion of the pouches III and IV, and in a similiar manner migrates to the superior mediastinum during fetal life. Aberrant thymus tissue has been reported a number of times in the literature, its most frequent ectopic site being in the neck. Gilmour1 describes 13 cases of aberrant thymus tissue he had found in the neck, usually in intimate References 1. Gilmour, J. R.: Some Developmental Abnormalities of the Thymus and Parathyroids , J. Path. & Bact. 52:213, 1941. 2. Epstein, H. C., and Loeb, W. J.: Thymic Tumor of the Pharynx , J. Pediat. 47:105, 1955. 3. Barker, V. L., and Brines, O. A.: Hyper-functioning Adenoma of an Ectopic Parathyroid Gland , Arch. Surg. 39:205, 1939. 4. Crotti, A.: Diseases of the Thyroid, Parathyroid and Thymus , Ed. 3, Philadelphia, Lea & Febiger, 1938.

Journal

A.M.A. Archives of OtolaryngologyAmerican Medical Association

Published: Mar 1, 1959

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