Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Cyclic Cushing syndrome is a rare disorder characterized by periodic fluctuations in adrenal cortisol secretion, with phases of hypercortisolism alternating with periods of normal or low cortisol production. This Case Study discusses diagnostic challenges and treatment options in a patient with cyclic Cushing syndrome due to an ectopic pituitary adenoma.
Continuous glucose monitoring systems provide dynamic measurements of interstitial glucose levels, enabling patients with diabetes mellitus to act preemptively to reduce glycemic variability. The authors of this Viewpoint discuss the advantages of continuous glucose-monitoring systems over self-monitoring of blood glucose, as well factors that limit its availability and success.
Fine-needle aspiration cytology (FNAC) is a widely useed method for identifying malignant thyroid nodules. The main limitation of FNAC is the relatively high number of non-diagnostic specimens. The author of this Viewpoint suggests that the use of a stylet needle remarkably improves the diagnostic performance of FNAC and reduces health care costs.
Emotional stress might affect thyroid function by causing immunological perturbations and also via neural pathways. This article demonstrates a case in which both the onset of Graves disease and later exacerbations of hyperthyroidism were triggered by stressful events, and discusses management strategies for patients with stress-related Graves disease.