Petrosal Sinus sampling (IPSS) (Cushing’s syndrome test)

Cushing's syndrome & IPSS in St. Louis


For patients who have been diagnosed with Cushing's syndrome which results from excessive production of the hormone cortisol. This procedure is used to determine if the source of the excessive hormones is the pituitary gland or somewhere else, often the lungs or abdomen. A catheter will be used to explore the main vein that drains blood from each leg. X-ray screening guides the radiologist to know where the catheters are positioned during the procedure. Once the catheters are in place, blood samples are taken to determine the source of the excessive hormones.

Imaging Areas

blood, blood vessels, brain, children, hormone

Typical Preparations

Offices of Service & Attending Physicians

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