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MENDELL ROBINSON, M.D.; CHARLES FERGUSON, M.D.; CARLYLE G. FLAKE, M.D.

AMA Arch Otolaryngol. 1959;69(3):312-314.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

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 . . . [Full Text PDF of this Article]

Author Affiliations
Providence, R. I.

Department of Otolaryngology, Children's Hospital, Boston.

Footnotes
Submitted for publication May 20, 1958.

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