Browsing by Author "Hochhegger, Bruno"
Now showing 1 - 2 of 2
Results Per Page
Sort Options
Item Can chest high-resolution computed tomography findings diagnose pulmonary alveolar microlithiasis?(2015) Ferreira Francisco, Flávia Angélica; Souza Rodrigues, Rosana; Menna Barreto, Miriam; Escuissato, Dante Luiz; Araujo Neto, Cesar Augusto; Pereira E Silva, Jorge Luiz; Silva, Claudio S; Hochhegger, Bruno; Soares Souza Jr, Arthur; Zanetti, Glaúcia; Marchior, EdsonObjective: The present study was aimed at retrospectively reviewing high-resolution computed tomography (HRCT) findings in patients with pulmonary alveolar microlithiasis in order to evaluate the frequency of tomographic findings and their distribution in the lung parenchyma. Materials and methods: Thirteen patients (9 females and 4 males; age, 9 to 59 years; mean age, 34.5 years) were included in the present study. The HRCT images were independently evaluated by two observers whose decisions were made by consensus. The inclusion criterion was the presence of abnormalities typical of pulmonary alveolar microlithiasis at HRCT, which precludes lung biopsy. However, in 6 cases lung biopsy was performed. Results: Ground-glass opacities and small parenchymal nodules were the predominant tomographic findings, present in 100% of cases, followed by small subpleural nodules (92.3%), subpleural cysts (84.6%), subpleural linear calcifications (69.2%), crazy-paving pattern (69.2%), fissure nodularity (53.8%), calcification along interlobular septa (46.2%) and dense consolidation (46.2%). Conclusion: As regards distribution of the lesions, there was preferential involvement of the lower third of the lungs. No predominance of distribution in axial and anteroposterior directions was observed.Item Metastatic pulmonary calcification: High-resolution computed tomography findings in 23 cases(Colegio Brasileiro De Radiologia, 2017) Belém, Luciana; Souza, Carolina; Souza, Arthur; Escuissato, Dante; Hochhegger, Bruno; Nobre, Luiz; Rodrigues, Rosana; Gomes, Antônio; Silva, Claudio; Guimarães, Marcos; Zanetti, Gláucia; Marchiori, EdsonOBJECTIVE: The aim of this study was to evaluate the high-resolution computed tomography (HRCT) findings in patients diagnosed with metastatic pulmonary calcification (MPC). MATERIALS AND METHODS: We retrospectively reviewed the HRCT findings from 23 cases of MPC [14 men, 9 women; mean age, 54.3 (range, 26-89) years]. The patients were examined between 2000 and 2014 in nine tertiary hospitals in Brazil, Chile, and Canada. Diagnoses were established by histopathologic study in 18 patients and clinical-radiological correlation in 5 patients. Two chest radiologists analyzed the images and reached decisions by consensus. RESULTS: The predominant HRCT findings were centrilobular ground-glass nodules (n = 14; 60.9%), consolidation with high attenuation (n = 10; 43.5%), small dense nodules (n = 9; 39.1%), peripheral reticular opacities associated with small calcified nodules (n = 5; 21.7%), and ground-glass opacities without centrilobular ground-glass nodular opacity (n = 5; 21.7%). Vascular calcification within the chest wall was found in four cases and pleural effusion was observed in five cases. The abnormalities were bilateral in 21 cases. CONCLUSION: MPC manifested with three main patterns on HRCT, most commonly centrilobular ground-glass nodules, often containing calcifications, followed by dense consolidation and small solid nodules, most of which were calcified. We also described another pattern of peripheral reticular opacities associated with small calcified nodules. These findings should suggest the diagnosis of MPC in the setting of hypercalcemia.