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Jornal Brasileiro de Pneumologia
On-line version ISSN 1806-3756
MARCHIORI, Edson et al. Pulmonary alveolar microlithiasis: high-resolution computed tomography findings in 10 patients. J. bras. pneumol. [online]. 2007, vol.33, n.5, pp. 552-557. ISSN 1806-3756. http://dx.doi.org/10.1590/S1806-37132007000500010.
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.
Keywords : Tomography, X-Ray Computed; Lithiasis [lung]; Lung diseases.