Question 2344
{"accessible":false,"alternatives":[{"id":11574,"text":"air trapping, normal lung and ground glass densities are highly specific for the diagnosis"},{"id":11575,"text":"a pattern of fibrosis that is concordant with HP is termed \"axially diffuse\", implying both a peripheral and peribronchovascular distribution"},{"id":11576,"text":"evidence of airway involvement on CT, such as air trapping, is required as per the 2020 international clinical practice guideline for HP diagnosis"},{"id":11577,"text":"fibrotic HP commonly has an upper zone predominance"}],"archived":false,"correctAlternativeId":11577,"explanation":"\u003cp\u003eOnly a small minority of cases of \u003ca href=\"/articles/fibrotic-hypersensitivity-pneumonitis\"\u003efibrotic HP\u003c/a\u003e have a pure upper zone predominance. When present, this is a useful differentiator, but other features should be relied upon for initial interpretation.\u003c/p\u003e","id":2344,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2345","nextQuestionPath":"/articles/idiopathic-interstitial-pneumonias-hrct-chest-approach/questions/2342","relatedArticles":[{"id":16895,"title":"Usual interstitial pneumonia","link":"/articles/usual-interstitial-pneumonia?lang=us"},{"id":17181,"title":"Hypersensitivity pneumonitis","link":"/articles/hypersensitivity-pneumonitis?lang=us"},{"id":11007,"title":"Non-specific interstitial pneumonia","link":"/articles/non-specific-interstitial-pneumonia-1?lang=us"},{"id":1431,"title":"Three attenuation pattern","link":"/articles/three-attenuation-pattern?lang=us"},{"id":43571,"title":"Diagnostic HRCT criteria for usual interstitial pneumonia (UIP) pattern - ATS/ERS/JRS/ALAT (2018)","link":"/articles/diagnostic-hrct-criteria-for-usual-interstitial-pneumonia-uip-pattern-atsersjrsalat-2018?lang=us"},{"id":68888,"title":"Interstitial lung abnormality","link":"/articles/interstitial-lung-abnormality?lang=us"},{"id":98325,"title":"Fibrotic hypersensitivity pneumonitis","link":"/articles/fibrotic-hypersensitivity-pneumonitis?lang=us"}],"alsoUsedIn":[{"id":1354,"kind":"Course","title":"2022 Virtual Conference Private Use - page 1354","link":"https://radiopaedia.org/courses/2022-virtual-conference-private-use/pages/1354"},{"id":1200,"kind":"Course","title":"2022 Virtual Conference Private Use - page 1200","link":"https://radiopaedia.org/courses/2022-virtual-conference-private-use/pages/1200"},{"id":248,"kind":"LiveSchedule","title":"248","link":"https://radiopaedia.org/admin/live_schedules/248"},{"id":168,"kind":"LiveSchedule","title":"168","link":"https://radiopaedia.org/admin/live_schedules/168"},{"id":1291,"kind":"Course","title":"2022 Virtual Conference Private Use - page 1291","link":"https://radiopaedia.org/courses/2022-virtual-conference-private-use/pages/1291"},{"id":1291,"kind":"Course","title":"Chest Lectures - page 1291","link":"https://radiopaedia.org/courses/chest-lectures/pages/1291"},{"id":1291,"kind":"Course","title":"Content Previews - page 1291","link":"https://radiopaedia.org/courses/previews/pages/1291"},{"id":1291,"kind":"Course","title":"Lecture Collections - page 1291","link":"https://radiopaedia.org/courses/lecture-collections/pages/1291"}],"stem":"\u003cp\u003eWhich of the following is \u003cstrong\u003eFALSE\u003c/strong\u003e in fibrotic hypersensitivity pneumonitis (HP)?\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/2344"}],"attemptsPercentages":[{"alternativeId":"11575","percentage":15},{"alternativeId":"11574","percentage":11},{"alternativeId":"11577","percentage":56},{"alternativeId":"11576","percentage":17}],"promptToLogin":false,"questionManager":false,"articleId":"idiopathic-interstitial-pneumonias-hrct-chest-approach"}