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1.  Bilateral elastofibroma dorsi 
Radiologia Brasileira  2016;49(1):61.
PMCID: PMC4770403  PMID: 26929467
3.  Reversed halo sign 
PMCID: PMC4723011  PMID: 26785969
4.  Pulmonary neoplasia mimicking fungus ball 
Radiologia Brasileira  2015;48(6):400-401.
PMCID: PMC4725404  PMID: 26811560
6.  Diffuse lung cysts 
PMCID: PMC4635099  PMID: 26578144
7.  Can chest high-resolution computed tomography findings diagnose pulmonary alveolar microlithiasis?* 
Radiologia Brasileira  2015;48(4):205-210.
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.
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%).
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.
PMCID: PMC4567357  PMID: 26379317
Pulmonary alveolar microlithiasis; High-resolution computed tomography; Pulmonary calcifications
9.  Cocaine-induced pulmonary changes: HRCT findings *  
Jornal Brasileiro de Pneumologia  2015;41(4):323-330.
To evaluate HRCT scans of the chest in 22 patients with cocaine-induced pulmonary disease.
We included patients between 19 and 52 years of age. The HRCT scans were evaluated by two radiologists independently, discordant results being resolved by consensus. The inclusion criterion was an HRCT scan showing abnormalities that were temporally related to cocaine use, with no other apparent causal factors.
In 8 patients (36.4%), the clinical and tomographic findings were consistent with "crack lung", those cases being studied separately. The major HRCT findings in that subgroup of patients included ground-glass opacities, in 100% of the cases; consolidations, in 50%; and the halo sign, in 25%. In 12.5% of the cases, smooth septal thickening, paraseptal emphysema, centrilobular nodules, and the tree-in-bud pattern were identified. Among the remaining 14 patients (63.6%), barotrauma was identified in 3 cases, presenting as pneumomediastinum, pneumothorax, and hemopneumothorax, respectively. Talcosis, characterized as perihilar conglomerate masses, architectural distortion, and emphysema, was diagnosed in 3 patients. Other patterns were found less frequently: organizing pneumonia and bullous emphysema, in 2 patients each; and pulmonary infarction, septic embolism, eosinophilic pneumonia, and cardiogenic pulmonary edema, in 1 patient each.
Pulmonary changes induced by cocaine use are varied and nonspecific. The diagnostic suspicion of cocaine-induced pulmonary disease depends, in most of the cases, on a careful drawing of correlations between clinical and radiological findings.
PMCID: PMC4635952  PMID: 26398752
Cocaine, Cocaine-related disorders; Tomography, X-ray computed; Lung diseases
10.  Dense consolidations 
PMCID: PMC4635959  PMID: 26398759
11.  Organizing pneumonia: chest HRCT findings*  
Jornal Brasileiro de Pneumologia  2015;41(3):231-237.
To determine the frequency of HRCT findings and their distribution in the lung parenchyma of patients with organizing pneumonia.
This was a retrospective review of the HRCT scans of 36 adult patients (26 females and 10 males) with biopsy-proven organizing pneumonia. The patients were between 19 and 82 years of age (mean age, 56.2 years). The HRCT images were evaluated by two independent observers, discordant interpretations being resolved by consensus.
The most common HRCT finding was that of ground-glass opacities, which were seen in 88.9% of the cases. The second most common finding was consolidation (in 83.3% of cases), followed by peribronchovascular opacities (in 52.8%), reticulation (in 38.9%), bronchiectasis (in 33.3%), interstitial nodules (in 27.8%), interlobular septal thickening (in 27.8%), perilobular pattern (in 22.2%), the reversed halo sign (in 16.7%), airspace nodules (in 11.1%), and the halo sign (in 8.3%). The lesions were predominantly bilateral, the middle and lower lung fields being the areas most commonly affected.
Ground-glass opacities and consolidation were the most common findings, with a predominantly random distribution, although they were more common in the middle and lower thirds of the lungs.
PMCID: PMC4541758  PMID: 26176521
Cryptogenic organizing pneumonia; Respiratory tract diseases; Tomography, X-ray computed
12.  Small interstitial nodules 
PMCID: PMC4541761  PMID: 26176523
13.  Reversed halo sign in acute schistosomiasis 
Jornal Brasileiro de Pneumologia  2015;41(3):286-288.
PMCID: PMC4541767  PMID: 26176529
14.  Catamenial pneumothorax 
Radiologia Brasileira  2015;48(2):128-129.
PMCID: PMC4433306  PMID: 25987756
15.  Hibernoma: an uncommon cause of a pleural mass 
Jornal Brasileiro de Pneumologia  2015;41(1):103-104.
PMCID: PMC4350833  PMID: 25750682
17.  Thoracic textilomas: CT findings*  
Jornal Brasileiro de Pneumologia  2014;40(5):535-542.
The aim of this study was to analyze chest CT scans of patients with thoracic textiloma.
This was a retrospective study of 16 patients (11 men and 5 women) with surgically confirmed thoracic textiloma. The chest CT scans of those patients were evaluated by two independent observers, and discordant results were resolved by consensus.
The majority (62.5%) of the textilomas were caused by previous heart surgery. The most common symptoms were chest pain (in 68.75%) and cough (in 56.25%). In all cases, the main tomographic finding was a mass with regular contours and borders that were well-defined or partially defined. Half of the textilomas occurred in the right hemithorax and half occurred in the left. The majority (56.25%) were located in the lower third of the lung. The diameter of the mass was ≤ 10 cm in 10 cases (62.5%) and > 10 cm in the remaining 6 cases (37.5%). Most (81.25%) of the textilomas were heterogeneous in density, with signs of calcification, gas, radiopaque marker, or sponge-like material. Peripheral expansion of the mass was observed in 12 (92.3%) of the 13 patients in whom a contrast agent was used. Intraoperatively, pleural involvement was observed in 14 cases (87.5%) and pericardial involvement was observed in 2 (12.5%).
It is important to recognize the main tomographic aspects of thoracic textilomas in order to include this possibility in the differential diagnosis of chest pain and cough in patients with a history of heart or thoracic surgery, thus promoting the early identification and treatment of this postoperative complication.
PMCID: PMC4263335  PMID: 25410842
Foreign-body reaction; Tomography; spiral computed; Thoracic surgery
19.  Which is your diagnosis? 
Radiologia Brasileira  2014;47(5):XI-XIII.
PMCID: PMC4341400  PMID: 25741114
21.  Which is your diagnosis? 
Radiologia Brasileira  2014;47(3):XI-XIII.
PMCID: PMC4337138  PMID: 25741084

Results 1-25 (54)