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Vol. 14. Issue 2.
Pages 285-290 (March - April 2008)
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Vol. 14. Issue 2.
Pages 285-290 (March - April 2008)
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Carcinoma bronquíolo-alveolar associado a malformação congénita das vias aéreas pulmonares em adolescente assintomático
Bronchioloalveolar carcinoma associated with congenital pulmonary airway malformation in an asymptomatic adolescent
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Francisco Abecasis1,7,9, Maria Gomes Ferreira2,7,9, Ana Oliveira3,7,9, Henrique Vaz Velho4,7,9, Ana Jorge5,7,9, Maria José Brito6,7,9, José Roquette8,9
1 Interno do Internato Complementar de Pediatria, Hospital Garcia de Orta, Almada
2 Assistente Hospitalar Graduada de Pediatria, Hospital Garcia de Orta, Almada
3 Assistente Hospitalar Graduada de Anatomia Patológica do Hospital Garcia de Orta, Almada
4 Chefe do Serviço de Cirurgia Cardiotorácica do Hospital de Santa Marta
5 Serviço de Pediatria
6 Serviço de Anatomia Patológica
7 Hospital Garcia de Orta, Avenida Torrado da Silva, 2805-267 Almada, Portugal
8 Serviço de Cirurgia Cardiotorácica
9 Hospital de Santa Maria, Rua de Santa Maria, 50, 1169-024 Lisboa, Portugal
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Resumo

A malformação congénita das vias aéreas pulmonares (CPAM) é uma entidade rara com potencial de transformação maligna. Relata-se o caso de um rapaz de 14 anos, assintomático, referenciado à consulta após detecção de imagem nodular na base do pulmão direito num radiograma de tórax. A tomografia computorizada (TC) mostrou, no pulmão direito, formação redonda de média densidade com centro cavitado. Após um ano de seguimento, mantinha-se assintomático, sendo a imagem radiológica sobreponível. Em conjunto com a equipa de cirurgia cardiotorácica foi decidido proceder a biópsia excisional. O exame histológico revelou um carcinoma bronquíolo-alveolar mucinoso associado a CPAM tipo 1. Perante este resultado, o doente foi submetido a lobectomia inferior direita. No exame histológico do restante lobo, não se identificou tumor ou malformação residuais. Mantém-se assintomático e sem complicações passados dois anos. Tanto quanto é do conhecimento dos autores, este é o primeiro caso desta rara associação em Portugal. Discute-se a abordagem de lesões quísticas em doentes assintomáticos.

Palavras-chave:
Carcinoma bronquíolo-alveolar
criança
malformação adenomatóide quística do pulmão
malformação congénita das vias aéreas pulmonares
Abstract

Congenital pulmonary airway malformation (CPAM) is a rare entity with potential for malignant transformation. We describe the case of a fourteen-year-old boy evaluated for the presence of a nodular image on the right lung on the chest x-ray. Computerized Tomography (CT) showed a round lesion of medium density with cavitation on the right lung. After one year of follow-up the patient was still asymptomatic and the image was similar. With the agreement of the cardiothoracic surgeons an excisional biopsy was performed. The histological examination revealed a mucinous bronchioloalveolar carcinoma associated with a type 1 CPAM. The patient was then submitted to right inferior lobectomy. After two years follow-up he is asymptomatic and free of complications. To the authors best knowledge this is the first case reported in Portugal of this rare association. The approach to cystic lesions in asymptomatic patients is discussed.

Key-words:
Bronchioloalveolar carcinoma
children
cystic adenomatoid malformation of lung
congenital pulmonary airway malformation
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Copyright © 2008. Sociedade Portuguesa de Pneumologia
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