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Arq Bras Endocrinol Metabol. 2008 Aug;52(6):1066-70.

Severe hypertension and hypokalemia as first clinical manifestations in ectopic Cushing's syndrome.

Author information

1
Endocrinology and Nutrition Service, University Clinical Hospital of Santiago de Compostela, Spain.

Abstract

Ectopic ACTH production occurs in about 10% of all cases of Cushing's syndrome, and about 25% of cases of ACTH-dependent Cushing's syndrome. Diverse tumor types are able to produce ACTH ectopically, including small cell lung carcinoma. Ectopic ACTH secretion by malignant neoplasm has been reported to have earlier and more aggressive metabolic effects. We report a 59-year-old male patient with severe hypertension, metabolic alkalosis and hypokalemia as the first clinical manifestations of an ACTH-secreting small cell lung carcinoma, although the typical phenotypic features of Cushing's syndrome were not present. Ectopic Cushing's syndrome should always be ruled out in patients with severe hypertension and hypokalemia.

PMID:
18820819
DOI:
10.1590/s0004-27302008000600019
[Indexed for MEDLINE]

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