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David J. Kastan, MD; Sambasiva R. Kottamasu, MD; Boy Frame, MD; Kenneth A. Greenwald, MD

JAMA. 1987;257(9):1218-1219.

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

COMMONLY four parathyroid glands are located in the neck.^1,2 The incidence of a fifth supernumery parathyroid gland has been reported to be between 2% and 6%.^1,2 Most reports of a hyperfunctioning supernumery parathyroid gland have been adenomas.^3-5 There have been only a few reports of parathyroid gland carcinoma occurring outside of the cervical region, ^6-9 none of which were in a supernumery parathyroid gland. We believe this is the first report of a carcinoma occurring in a supernumery parathyroid gland. The patient is free of recurrence seven years after surgical excision.

Report of a Case

A 57-year-old woman was seen in the emergency department with a sprained ankle. Roentgenograms of the ankle revealed no evidence of skeletal trauma, but because of marked osteopenia, testing for serum calcium levels was performed, with values of greater than 15 mg/dL (>3.74 mmol/L). The patient's detailed history was normal, aside from . . . [Full Text PDF of this Article]

Author Affiliations
From the Departments of Diagnostic Radiology and Medical Imaging (Drs Kastan and Kottamasu), Internal Medicine (Dr Frame), and Pathology (Dr Greenwald), Henry Ford Hospital, Detroit.

Footnotes
Deceased.

Reprint requests to the Department of Diagnostic Radiology and Clinical Imaging, Henry Ford Hospital, 2799 W Grand Blvd, Detroit, MI 48202 (Dr Kastan).

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