Ectopic production of antidiuretic hormone (ADH), adrenocorticotrophic hormone (ACTH) and beta-melanocyte stimulating hormone (β-MSH) by an oat cell carcinoma of the lung

Mario Coscia, Ronald D. Brown, Myron Miller, Koshi Tanaka, Wendell E. Nicholson, Ken R. Parks, David N. Orth

Research output: Contribution to journalArticlepeer-review

Abstract

A 61 year old woman presented with profound hyponatremia and markedly low serum osmolality. Urine osmolality was greater than the serum osmolality, an abnormality that was corrected by water restriction, suggesting inappropriate ADH secretion. Although there were no physical signs of Cushing's syndrome, her serum potassium level was low and markedly elevated levels of plasma and urine corticosteroids were not altered by the administration of large amounts of dexamethasone, suggesting the ectopic ACTH-MSH syndrome. Plasma levels of immunoreactive ACTH and β-MSH were elevated. At autopsy, a metastatic oat cell carcinoma of the lung, not detected antemortem by chest roentgenograms and bronchoscopy, was found. Immunoreactive ADH, ACTH and β-MSH were detected in the primary tumor and in metastases to the liver. β-MSH was also detected in the spleen, in which metastases were observed. This is the first documented case of the simultaneous production of ADH, ACTH and β-MSH by neoplastic tissue associated with clinical manifestations of the syndrome of inappropriate ADH secretion and the ectopic ACTH-MSH syndrome.

Original languageEnglish (US)
Pages (from-to)303-307
Number of pages5
JournalThe American journal of medicine
Volume62
Issue number2
DOIs
StatePublished - Feb 1977
Externally publishedYes

ASJC Scopus subject areas

  • Medicine(all)

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