Question 1458
{"accessible":false,"alternatives":[{"id":7280,"text":"confirm the presence of a hormonally active pituitary microadenoma"},{"id":7281,"text":"dilate venous stenoses causing intracranial hypertension"},{"id":7282,"text":"embolize indirect caroticocavernous fistulas "},{"id":7283,"text":"establish the cause of low sex hormones"},{"id":7284,"text":"treat medically refractive prolactinomas"}],"archived":false,"correctAlternativeId":7280,"explanation":"\u003cp\u003eInferior petrosal sinus sampling is an infrequently used method of confirming the presence of a hormonally active pituitary microadenoma when imaging alone has been insufficient. This technique is able to confirm that excess hormone (e.g. ACTH) is being produced by the pituitary and may also help in lateralizing the microadenoma (although the later is more contentious).\u0026nbsp;\u003c/p\u003e","id":1458,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/1458","nextQuestionPath":"/articles/inferior-petrosal-sinus-sampling/questions/1457","relatedArticles":[],"alsoUsedIn":[{"id":230,"kind":"Course","title":"X-ray Interpretation: Adult Chest - page 230","link":"https://radiopaedia.org/courses/x-ray-interpretation-adult-chest/pages/230"},{"id":230,"kind":"Course","title":"Pituitary Region Learning Pathway - page 230","link":"https://radiopaedia.org/courses/pituitary-learning-pathway/pages/230"}],"stem":"\u003cp\u003eInferior petrosal sinus sampling is primarily performed to...\u003c/p\u003e","menuLinks":[{"text":"Report problem with question","url":"https://docs.google.com/forms/d/e/1FAIpQLSfO3soWYhOjJ7yErSysyCe5V4A1CqW7WK3rDA7MtAkecMGqNw/viewform?entry.1624461248\u0026entry.553583435=https://radiopaedia.org/questions/1458"}],"attemptsPercentages":[{"alternativeId":"7281","percentage":2},{"alternativeId":"7283","percentage":2},{"alternativeId":"7284","percentage":3},{"alternativeId":"7280","percentage":92},{"alternativeId":"7282","percentage":2}],"promptToLogin":false,"questionManager":false,"articleId":"inferior-petrosal-sinus-sampling"}