scholarly journals Can chest high-resolution computed tomography findings diagnose pulmonary alveolar microlithiasis?

2015 ◽  
Vol 48 (4) ◽  
pp. 205-210 ◽  
Author(s):  
Flávia Angélica Ferreira Francisco ◽  
Rosana Souza Rodrigues ◽  
Miriam Menna Barreto ◽  
Dante Luiz Escuissato ◽  
Cesar Augusto Araujo Neto ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Lung Biopsy ◽  
Lung Parenchyma ◽  
Ground Glass ◽  
High Resolution Computed Tomography ◽  
Pulmonary Alveolar Microlithiasis ◽  
Alveolar Microlithiasis

Abstract Objective: 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.

scholarly journals High-resolution computed tomography and histopathological findings in hypersensitivity pneumonitis: a pictorial essay

2016 ◽  
Vol 49 (2) ◽  
pp. 112-116 ◽  
Author(s):  
Pedro Paulo Teixeira e Silva Torres ◽  
Marise Amaral Rebouças Moreira ◽  
Daniela Graner Schuwartz Tannus Silva ◽  
Roberta Rodrigues Monteiro da Gama ◽  
Denis Masashi Sugita ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Lung Biopsy ◽  
Hypersensitivity Pneumonitis ◽  
Giant Cells ◽  
Clinical Findings ◽  
High Resolution Computed Tomography ◽  
Histopathological Findings ◽  
Pictorial Essay ◽  
Inflammatory Infiltrates

Abstract Hypersensitivity pneumonitis is a diffuse interstitial and granulomatous lung disease caused by the inhalation of any one of a number of antigens. The objective of this study was to illustrate the spectrum of abnormalities in high-resolution computed tomography and histopathological findings related to hypersensitivity pneumonitis. We retrospectively evaluated patients who had been diagnosed with hypersensitivity pneumonitis (on the basis of clinical-radiological or clinical-radiological-pathological correlations) and had undergone lung biopsy. Hypersensitivity pneumonitis is clinically divided into acute, subacute, and chronic forms; high-resolution computed tomography findings correlate with the time of exposure; and the two occasionally overlap. In the subacute form, centrilobular micronodules, ground-glass opacities, and air trapping are characteristic high-resolution computed tomography findings, whereas histopathology shows lymphocytic inflammatory infiltrates, bronchiolitis, variable degrees of organizing pneumonia, and giant cells. In the chronic form, high-resolution computed tomography shows traction bronchiectasis, honeycombing, and lung fibrosis, the last also being seen in the biopsy sample. A definitive diagnosis of hypersensitivity pneumonitis can be made only through a multidisciplinary approach, by correlating clinical findings, exposure history, high-resolution computed tomography findings, and lung biopsy findings.

Investigation of optimal viewing size for detecting nodular ground-glass opacity on high-resolution computed tomography with cine-mode display

2010 ◽  
Vol 4 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Michihiro Yamaguchi ◽  
Yuichi Bessho ◽  
Tatsuro Inoue ◽  
Yoshiyuki Asai ◽  
Tomoshige Matsumoto ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Ground Glass Opacity ◽  
Ground Glass ◽  
High Resolution Computed Tomography

scholarly journals Complete Disappearance of Lung Abnormalities on High-Resolution Computed Tomography: A Case of Histiocytosis X

2007 ◽  
Vol 14 (4) ◽  
pp. 235-237 ◽  
Author(s):  
Sergio Negrin-Dastis ◽  
Dominique Butenda ◽  
Jacques Dorzee ◽  
Jacques Fastrez ◽  
Jean-Paul d’Odémont
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Lung Biopsy ◽  
Langerhans Cell Histiocytosis ◽  
Complete Disappearance ◽  
High Resolution Computed Tomography ◽  
Pulmonary Langerhans Cell Histiocytosis ◽  
Lung Abnormalities ◽  
Computed Tomography Scans

A case of pulmonary Langerhans cell histiocytosis, proved by both lung high-resolution computed tomography and lung biopsy, is described. Following smoking cessation, lung nodules and cysts gradually disappeared on serial computed tomography scans, with complete clearance of the lesions after 12 months. The role of tobacco smoking is discussed, in detail, against the background of the literature.

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