Microlitíase alveolar pulmonar: achados na tomografia computadorizada de alta resolução do tórax em 10 pacientes

Abstract

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.

A Case of Pulmonary Alveolar Microlithiasis

“…Therefore, in many cases, the diagnosis is made as an incidental radiographic film in symptomless patients (3). The chest radiograph usually revealed small innumerable, widespread, and calcified nodules, which tend to be greatest at the base (4, 9, 10). HRCT scan has aided in characterization of the imaging of the disease and can be useful in diagnosis (4, 9, 10).…”

“…The chest radiograph usually revealed small innumerable, widespread, and calcified nodules, which tend to be greatest at the base (4, 9, 10). HRCT scan has aided in characterization of the imaging of the disease and can be useful in diagnosis (4, 9, 10). Ground-glass opacities due to volume averaging of tiny microliths are a common and major finding in the literature (4, 9, 10).…”

“…Half of the patients were asymptomatic at the time of diagnosis; therefore, most reported cases were diagnosed during a routine examination (1-3). Characteristic radiologic findings consist of bilateral innumerous calcified nodules, which might suggest the disease, and it is subsequently confirmed with a less invasive procedure, such as bronchoscopy (4). Most cases of PAM in Asia have been reported in Turkey, India, and Japan (1-3).…”

Calcified pulmonary consolidations in pulmonary alveolar microlithiasis: Uncommon computed tomographic appearance of a rare disease

“…This radiological picture is considered virtually diagnostic precluding the need for a biopsy. [56789] Calcified pleural has been described in addition to the characteristic parenchymal involvement. [10] Dense confluent calcifications causing consolidation of the lungs in the lower lobes are however unusual.…”

“…[8] Dense and confluent calcification to form consolidations as seen in the present case is uncommon. [9] As calcium metabolism is normal, serum calcium, phosphate, and parathyroid hormone remain within normal range. [11]…”