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Salivary Bioscience News

Late night salivary cortisol and its diagnostic utility for Cushing’s Disease and after pituitary surgery

Late Night Salivary Cortisol in the diagnosis of neoplastic hypercortisolism (including cyclic Cushing’s syndrome)

Raff H. (2022), Pituitary

ABSTRACT: Late night salivary cortisol (LNSC) is a mainstay in the diagnosis of neoplastic hypercortisolism (Cushing’s syndrome) with a sensitivity and specificity of > 90% in patients with syndromic signs and symptoms. Intermittent hormonogenesis (day to day variation) is common in milder Cushing’s disease whereas true cyclic Cushing’s syndrome (weeks to months of tumor quiescence) is unusual. In both cases, LNSC is useful as a sensitive evaluative diagnostic tool, although its lower specificity may lead to false positive results in patients without Cushing’s disease. Furthermore, intermittent hormonogenesis may lead to false negative LNSC results in patients with mild Cushing’s disease. Finally, LNSC is useful as an approach to follow patients after pituitary surgery to detect a recurrence even many years after a full remission.

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Keywords: Late night salivary cortisol, salivary cortisol, neoplastic hypercortisolism, Cushing’s disease, pituitary surgery,

*Note: Salimetrics provides this information for research use only (RUO). Information is not provided to promote off-label use of medical devices. Please consult the full-text article.

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