Organizing pneumonia: chest HRCT findings

• Autor(a) principal: Faria,Igor Murad
• Data de Publicação: 2015
• Outros Autores: Zanetti,Gláucia, Barreto,Miriam Menna, Rodrigues,Rosana Souza, Araujo-Neto,Cesar Augusto, Silva,Jorge Luiz Pereira e, Escuissato,Dante Luiz, Souza Jr,Arthur Soares, Irion,Klaus Loureiro, Mançano,Alexandre Dias, Nobre,Luiz Felipe, Hochhegger,Bruno, Marchiori,Edson
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Jornal Brasileiro de Pneumologia (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-37132015000300231
• topic: Cryptogenic organizing pneumonia; Respiratory tract diseases; Tomography, X-ray computed

OBJECTIVE: To determine the frequency of HRCT findings and their distribution in the lung parenchyma of patients with organizing pneumonia. METHODS: This was a retrospective review of the HRCT scans of 36 adult patients (26 females and 10 males) with biopsy-proven organizing pneumonia. The patients were between 19 and 82 years of age (mean age, 56.2 years). The HRCT images were evaluated by two independent observers, discordant interpretations being resolved by consensus. RESULTS: The most common HRCT finding was that of ground-glass opacities, which were seen in 88.9% of the cases. The second most common finding was consolidation (in 83.3% of cases), followed by peribronchovascular opacities (in 52.8%), reticulation (in 38.9%), bronchiectasis (in 33.3%), interstitial nodules (in 27.8%), interlobular septal thickening (in 27.8%), perilobular pattern (in 22.2%), the reversed halo sign (in 16.7%), airspace nodules (in 11.1%), and the halo sign (in 8.3%). The lesions were predominantly bilateral, the middle and lower lung fields being the areas most commonly affected. CONCLUSIONS: Ground-glass opacities and consolidation were the most common findings, with a predominantly random distribution, although they were more common in the middle and lower thirds of the lungs.