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An Inappropriate Thyrotropin-Secreting Pituitary Adenoma in a 30-Year-Old Man
Patrick Fahey, MD;
Peter Sarkos;
Ernest Mazzaferri, MD
Arch Fam Med. 1994;3(2):190-192.
Abstract
Thyrotropin-secreting pituitary adenomas are rare, especially in the family practice setting. We report a case of such a tumor and review the literature. The key clinical finding is hyperthyroidism in the absence of a suppressed thyrotropin level. The patient was unusual in not having an elevated  -subunit. All patients with hyperthyroidism should be screened for a thyrotropin level to rule out this unusual cause of hyperthyroidism. Other aspects of this case pertinent to primary care management are reviewed.
Author Affiliations
From the Departments of Family Medicine (Dr Fahey and Mr Sarkos) and Internal Medicine (Dr Mazzaferri), The Ohio State University Hospital, Columbus.
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