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. 2007 Sep-Oct;33(5):552-7.
doi: 10.1590/s1806-37132007000500010.

Pulmonary alveolar microlithiasis: high-resolution computed tomography findings in 10 patients

[Article in English, Portuguese]
Edson Marchiori  1 , Carolina Marinho Gonçalves, Dante Luiz Escuissato, Kim-Ir-Sen Santos Teixeira, Rosana Rodrigues, Miriam Menna Barreto, Mauro Esteves
Affiliations
Free article

Pulmonary alveolar microlithiasis: high-resolution computed tomography findings in 10 patients

[Article in English, Portuguese]
Edson Marchiori et al. J Bras Pneumol. 2007 Sep-Oct.
Free article

Abstract

Objective: To present the high-resolution computed tomography (HRCT) findings of pulmonary alveolar microlithiasis.

Methods: The HRCT scans of 10 adult patients (seven females and three males; mean age, 38.7 years) were retrospectively analyzed. The films were studied independently by two radiologists.

Results: The most common tomographic findings were ground-glass attenuation and linear subpleural calcifications, which were seen in 90% of the patients. Other relevant findings were small parenchymal nodules, calcification along the interlobular septa, nodular cissures, subpleural nodules, subpleural cysts, dense consolidations, and a mosaic pattern of attenuation.

Conclusions: The HRCT findings presented by individuals with pulmonary alveolar microlithiasis are distinct. In most cases, such findings can form the basis of the diagnosis, eliminating the need to perform a lung biopsy.

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