{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T07:48:37Z","timestamp":1790840917259,"version":"4.1.0"},"reference-count":29,"publisher":"FapUNIFESP (SciELO)","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. bras. pneumol."],"published-print":{"date-parts":[[2017,9]]},"abstract":"<jats:p>ABSTRACT Idiopathic pulmonary fibrosis is a severe and progressive chronic fibrosing interstitial lung disease, a definitive diagnosis being established by specific combinations of clinical, radiological, and pathological findings. According to current international guidelines, HRCT plays a key role in establishing a diagnosis of usual interstitial pneumonia (UIP). Current guidelines describe three UIP patterns based on HRCT findings: a typical UIP pattern; a pattern designated \u201cpossible UIP\u201d; and a pattern designated \u201cinconsistent with UIP\u201d, each pattern having important diagnostic implications. A typical UIP pattern on HRCT is highly accurate for the presence of histopathological UIP, being currently considered to be diagnostic of UIP. The remaining patterns require further diagnostic investigation. Other known causes of a UIP pattern include drug-induced interstitial lung disease, chronic hypersensitivity pneumonitis, occupational diseases (e.g., asbestosis), and connective tissue diseases, all of which should be included in the clinical differential diagnosis. Given the importance of CT studies in establishing a diagnosis and the possibility of interobserver variability, the objective of this pictorial essay was to illustrate all three UIP patterns on HRCT.<\/jats:p>","DOI":"10.1590\/s1806-37562016000000368","type":"journal-article","created":{"date-parts":[[2017,11,11]],"date-time":"2017-11-11T17:43:29Z","timestamp":1510422209000},"page":"393-398","source":"Crossref","is-referenced-by-count":10,"title":["Usual interstitial pneumonia: typical, possible, and \u201cinconsistent\u201d patterns"],"prefix":"10.1590","volume":"43","author":[{"given":"Pedro Paulo Teixeira e Silva","family":"Torres","sequence":"first","affiliation":[{"name":"Multimagem Diagn\u00f3sticos,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marcelo Fouad","family":"Rabahi","sequence":"additional","affiliation":[{"name":"Universidade Federal de Goi\u00e1s,  Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria Auxiliadora Carmo","family":"Moreira","sequence":"additional","affiliation":[{"name":"Universidade Federal de Goi\u00e1s,  Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gustavo de Souza Portes","family":"Meirelles","sequence":"additional","affiliation":[{"name":"Grupo Fleury,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Edson","family":"Marchiori","sequence":"additional","affiliation":[{"name":"Universidade Federal do Rio de Janeiro,  Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"530","reference":[{"issue":"6","key":"ref1","doi-asserted-by":"crossref","first-page":"788","DOI":"10.1164\/rccm.2009-040GL","article-title":"An official ATS\/ERS\/JRS\/ALAT statement idiopathic pulmonary fibrosis: evidence-based guidelines for diagnosis and management","volume":"183","author":"Raghu G","year":"2011","journal-title":"Am J Respir Crit Care Med"},{"issue":"5","key":"ref2","doi-asserted-by":"crossref","first-page":"454","DOI":"10.1590\/S1806-37132015000000152","article-title":"Update on diagnosis and treatment of idiopathic pulmonary fibrosis","volume":"41","author":"Baddini-Martinez J","year":"2015","journal-title":"J Bras Pneumol"},{"issue":"2","key":"ref3","doi-asserted-by":"crossref","first-page":"e3","DOI":"10.1164\/rccm.201506-1063ST","article-title":"An Official ATS\/ERS\/JRS\/ALAT Clinical Practice Guideline Treatment of Idiopathic Pulmonary Fibrosis. 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