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Pulmonary Alveolar Microlithiasis: A Case Report with Emphasis on Imaging Findings

Pulmonary alveolar microlithiasis (PAM) is a rare disease characterized by the presence of small calculi in the alveolar space. The authors report a case of a 21-year-old man with a 2-year history of shortness of breath on exertion and dry cough. Physical examination was altered only for crackles at...

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Detalles Bibliográficos
Autores principales: Abdalla, Guilherme, Marchiori, Edson, Zanetti, Gláucia, Mucillo, Antonio, Pereira, Mariana Leite, Ventura, Nina, Martins, Pedro, Constantino, Carolina Pesce Lamas, Canellas, Rodrigo, Brandão, Viviane, Varella de Oliveira, Romulo
Formato: Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2910500/
https://www.ncbi.nlm.nih.gov/pubmed/20671919
http://dx.doi.org/10.1155/2010/819242
Descripción
Sumario:Pulmonary alveolar microlithiasis (PAM) is a rare disease characterized by the presence of small calculi in the alveolar space. The authors report a case of a 21-year-old man with a 2-year history of shortness of breath on exertion and dry cough. Physical examination was altered only for crackles at auscultation. Pulmonary function revealed a mild restrictive ventilatory defect and the chest radiograph demonstrated paracardiac confluence of dense micronodular infiltrate. High-resolution CT scan revealed diffuse ground glass attenuation and septal thickening, more pronounced in lower pulmonary regions, with calcifications along the interlobar septa and subpleural regions. A transbronchial lung biopsy confirmed the diagnosis of PAM.