title: Sclerosing variant of the bronchioloalveolar carcinoma: imaging findings in an atypical case.
abstract: Bronchioloalveolar carcinoma remains one of the most enigmatic lung cancers, demonstrating varied growth patterns, mixed histological features, and confusing clinical manifestations. This paper reports a case of an unusual form of presentation: a sclerosing type associated with desmoplastic reaction and cicatrization. A 75-year-old woman was admitted with persistent dry cough and progressive dyspnea. Physical examination showed bilateral inspiratory crackles. A chest radiograph and high-resolution computed tomography demonstrated confluent airspace nodules, forming areas of consolidation in both lungs, with signs of architectural distortion. The lung biopsy revealed a nonmucinous sclerosing bronchioloalveolar carcinoma.
authors.affiliation: Department of Radiology, Rio de Janeiro Federal University, Rua Thomaz Cameron, 438. Valparaiso, Petrópolis, 25685.120, Rio de Janeiro, Brazil.
authors.forename: Carolina Lamas
authors.initials: CL
authors.lastname: Constantino
authors.forename: Edson
authors.initials: E
authors.lastname: Marchiori
authors.forename: Gláucia
authors.initials: G
authors.lastname: Zanetti
authors.forename: Antonio
authors.initials: A
authors.lastname: Muccillo
authors.forename: Mariana Leite
authors.initials: ML
authors.lastname: Pereira
authors.forename: Guilherme
authors.initials: G
authors.lastname: Abdalla
authors.forename: Pedro
authors.initials: P
authors.lastname: Martins
authors.forename: Nina
authors.initials: N
authors.lastname: Ventura
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Canellas
authors.forename: Viviane
authors.initials: V
authors.lastname: Brandão
authors.forename: Romulo
authors.initials: R
authors.lastname: Varella de Oliveira