scholarly journals Migrating ground glass opacities on computed tomography due to gravitation in a patient with pulmonary alveolar proteinosis

2011 ◽  
Vol 1 (1) ◽  
pp. 2 ◽  
Author(s):  
Eiki Ichihara ◽  
Nagio Takigawa ◽  
Katsuya Kato ◽  
Yasushi Tanimoto ◽  
Ichiroh Yamadori ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Supine Position ◽  
Lung Biopsy ◽  
Pulmonary Alveolar Proteinosis ◽  
Lower Lobe ◽  
Ground Glass Opacity ◽  
Ventral Side ◽  
Ground Glass ◽  
Alveolar Proteinosis ◽  
Interlobular Septal Thickening

An 80-year-old man presented with heterogeneous ground glass opacity, with interlobular septal thickening in the left lower lobe. The histology of a surgical lung biopsy showed alveolar proteinosis. Computed tomography revealed that the ground glass opacity and interlobular septal thickening observed dorsally in the supine position migrated to the ventral side in the prone position. To the best of our knowledge, this is the first report of a posture-dependent migrating shadow in a patient with pulmonary alveolar proteinosis.

A case of autoimmune pulmonary alveolar proteinosis appearing as a localized ground-glass opacity

2014 ◽  
Vol 32 (11) ◽  
pp. 657-660 ◽  
Author(s):  
Katsuhide Kojima ◽  
Katsuya Kato ◽  
Takuya Fukazawa ◽  
Ichiro Morita ◽  
Nagio Takigawa ◽  
...  
Keyword(s):  
Pulmonary Alveolar Proteinosis ◽  
Ground Glass Opacity ◽  
Ground Glass ◽  
Alveolar Proteinosis

scholarly journals Percutaneous computed tomography-guided lung biopsy of solitary nodular ground-glass opacity

2015 ◽  
Vol 11 (8) ◽  
pp. 231 ◽  
Author(s):  
Jiang Li-Ming ◽  
Mao Wei-Min ◽  
Han Zhi-Qiang ◽  
Zheng Yi-Feng
Keyword(s):  
Computed Tomography ◽  
Lung Biopsy ◽  
Ground Glass Opacity ◽  
Ground Glass

scholarly journals Lung Adenocarcinoma with Mixed Solid and Crazy-paving Appearances

2021 ◽  
Author(s):  
Roqiah Abdul Kadir ◽  
Bushra Johari ◽  
Mohammad Hanafiah ◽  
Lily Zainudin
Keyword(s):  
Computed Tomography ◽  
Lung Adenocarcinoma ◽  
Ground Glass Opacity ◽  
Ct Images ◽  
Ground Glass ◽  
Linear Pattern ◽  
Alveolar Proteinosis

‘Crazy-paving’ refers to the superimposition of ground-glass opacity and linear pattern on computed tomography (CT) images. ‘Crazy-paving’ was initially pathognomonic for alveolar proteinosis. Lung adenocarcinoma demonstrating both solid and crazy-paving appearances on CT is a rare occurance.

scholarly journals Atypical pulmonary alveolar proteinosis presenting as a mixed nodular ground-glass opacity with focal mucinosis mimicking lung cancer

2018 ◽  
Vol 10 (9) ◽  
pp. E694-E698
Author(s):  
Tsutomu Shinohara ◽  
Hiroyuki Hino ◽  
Shino Imanishi ◽  
Keishi Naruse ◽  
Yuji Ohtsuki ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Pulmonary Alveolar Proteinosis ◽  
Ground Glass Opacity ◽  
Ground Glass ◽  
Alveolar Proteinosis

scholarly journals Chest computed tomography imaging features in patients with coronavirus disease 2019 (COVID-19)

2021 ◽  
Vol 49 (5) ◽  
pp. 030006052110106
Author(s):  
Hoda Salah Darwish ◽  
Mohamed Yasser Habash ◽  
Waleed Yasser Habash
Keyword(s):  
Computed Tomography ◽  
Intermediate Phase ◽  
Early Stage ◽  
Lower Lobe ◽  
Ground Glass Opacity ◽  
Intermediate Stage ◽  
Mediastinal Lymphadenopathy ◽  
Imaging Features ◽  
Stage Disease ◽  
Bilateral Lesions

Objective To analyze computed tomography (CT) features of symptomatic patients with coronavirus disease 2019 (COVID-19). Methods Ninety-five symptomatic patients with COVID-19 confirmed by reverse-transcription polymerase chain reaction from 1 May to 14 July 2020 were retrospectively enrolled. Follow-up CT findings and their distributions were analyzed and compared from symptom onset to late-stage disease. Results Among all patients, 15.8% had unilateral lung disease and 84.2% had bilateral disease with slight right lower lobe predilection (47.4%). Regarding lesion density, 49.4% of patients had pure ground glass opacity (GGO) and 50.5% had GGO with consolidation. Typical early-stage patterns were bilateral lesions in 73.6% of patients, diffuse lesions (41.0%), and GGO (65.2%). Pleural effusion occurred in 13.6% and mediastinal lymphadenopathy in 11.5%. During intermediate-stage disease, 47.4% of patients showed GGO as the disease progressed; however, consolidation was the predominant finding (52.6%). Conclusion COVID-19 pneumonia manifested on lung CT scans with bilateral, peripheral, and right lower lobe predominance and was characterized by diffuse bilateral GGO progressing to or coexisting with consolidation within 1 to 3 weeks. The most frequent CT lesion in the early, intermediate, and late phases was GGO. Consolidation appeared in the intermediate phase and gradually increased, ending with reticular and lung fibrosis-like patterns.

Study on the Dynamic Changes in Chest CT Findings of COVID-19 Rehabilitated Patients

2020 ◽  
pp. 1-7
Keyword(s):  
Disease Progression ◽  
Onset Time ◽  
Ground Glass Opacity ◽  
Chest Ct ◽  
Ground Glass ◽  
Dynamic Changes ◽  
Course Of Disease ◽  
Pleural Thickening ◽  
Ct Findings ◽  
Interlobular Septal Thickening

Objective: To study the dynamic changes in CT findings in COVID-19 (coronavirus disease-19, COVID-19) rehabilitated patients. Methods: A total of 148 chest CT images of 37 patients with COVID-19 were collected. In the first 21 days of the course of disease, 7 stages were performed every 3 days, and the eighth stage was performed after 21 days. Results: In the first chest CT examination, 19 cases were ground glass opacity, and 18 cases were high-density shadows with consolidation. The lesion shape was flaky and patchy in 33 cases. The percentage of consolidation, air bronchogram, fiber cord, interlobular septal thickening, subpleural line and pleural thickening were the highest on days 4-6, 7-9, 7-9, 10-12, 19-21 and 19-21, respectively. The highest percentage of disease progression was 80.00% on days 4-6, and then the percentage of disease progression gradually decreased with the extension of the onset time. The percentage of patients with improvement gradually increased from days 4-6, reaching 83.33% on days 16-18 and 100.00% on day 21. The percentage of lesion range enlargement and density increase was the highest on days 4-6, both of which were 60.00%，Then the percentage of both decreased gradually. The percentage of patients with lesion range reduction and density absorption dilution increased gradually with the onset time. There was no obvious regularity in the number of lesions. Conclusion: Patients with COVID-19 have regular changes in their lung conditions.

scholarly journals Pure ground-glass opacity on chest computed tomography: predictive factors for invasive adenocarcinoma

2016 ◽  
Vol 8 (7) ◽  
pp. 1561-1570 ◽  
Author(s):  
Youngkyu Moon ◽  
Sook Whan Sung ◽  
Kyo Young Lee ◽  
Sung Bo Sim ◽  
Jae Kil Park
Keyword(s):  
Computed Tomography ◽  
Predictive Factors ◽  
Ground Glass Opacity ◽  
Ground Glass ◽  
Invasive Adenocarcinoma ◽  
Chest Computed Tomography

scholarly journals Investigation of high-resolution computed tomographic (HRCT) outcomes associated with chronic pulmonary microaspiration (CPM) in Tehran and Zahedan, Iran

2020 ◽  
Vol 20 (4) ◽  
pp. 1710-5
Author(s):  
Bahareh Heshmat Ghahderijani ◽  
Fatemeh Hosseinabadi ◽  
Shahram Kahkouee ◽  
Mohamad Kazem Momeni ◽  
Samira Salajeghe ◽  
...  
Keyword(s):  
High Resolution ◽  
Lower Lobe ◽  
Ground Glass Opacity ◽  
Descriptive Study ◽  
Left Lower Lobe ◽  
Ground Glass ◽  
High Tendency ◽  
Computed Tomographic ◽  
Keywords Imaging

Background: In patients with chronic pulmonary microaspiration (CPM) the recognition of high-resolution computed tomographic (HRCT) findings and their pattern is important. Objective: To investigate the HRCT detections in patients with CPM. Materials and Methods: This descriptive study enrolled 100 consecutive patients with CPM underwent HRCT of the lungs between 2017 and 2018 in Tehran and Zahedan Hospitals and private centers. The required variables were recorded for each patient with a questionnaire. Subsequently, HRCT was performed and abnormalities were then reported by two radiologists. Results: Most of patients exhibited bronchial thickening in 33.6% of cases, followed by ground-glass opacity (12.4%), em- physema (11.1%), and bronchiectasis (8.5%). In addition, the most common HRCT findings were found in left lower lobe (LLL) (37.1%), followed by right lower lobe (RLL) (35.9 %), right upper lobe (RUL ) (6,2%), and left upper lobe (LUL) (6%). Conclusion: Our data showed the most common findings in HRCT were bronchial thickening ground-glass opacity, em- physema, and bronchiectasis, where these findings was dominantly found in LLL, RLL, RUL, and LUL, indicating its high tendency to dependent areas. Keywords: Imaging; high-resolution computed tomographic; chronic lung microaspiration.

Features Based on Thin-section Computed Tomography Identify the Typeof lung Adenocarcinoma

2020 ◽  
Author(s):  
Zhiqiang Li ◽  
Hongwei Zheng ◽  
Shanshan Liu ◽  
Xinhua Wang ◽  
Lei Xiao ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Lung Adenocarcinoma ◽  
Thin Section ◽  
Ground Glass Opacity ◽  
Smoking History ◽  
Ground Glass ◽  
Quantitative Aspect ◽  
Adenocarcinoma In Situ ◽  
Invasive Adenocarcinoma ◽  
Pleural Invasion

Abstract Background: To investigate whether thin-section computed tomography (TSCT) features may efficiently guide the invasiveness basedclassification of lung adenocarcinoma. Methods: Totally, 316 lung adenocarcinoma patients (from 2011-2015) were divided into three groups: 56 adenocarcinoma in situ (AIS), 98 minimally invasive adenocarcinoma (MIA), and 162 invasive adenocarcinoma (IAC) according their pathological results. Their TSCT features, including nodule pattern, shape, pleural invasion, solid proportion, border, margin, vascular convergence, air bronchograms, vacuole sign, pleural indentation, diameter, solid diameter, and CT values of ground-glass nodules (GGN) were analyzed. Pearson’s chi-square test, Fisher’s exact test and One-way ANOVA were adopted tocomparebetweengroups. Receiver operating characteristic (ROC) analysis wereperformedto assess its value for prediction and diagnosis. Results: Patients with IAC were significantly elder than those in AIS or MIA group,and more MIA patients had a smoking history than AIS and IAC. No recurrence happened in the AIS and MIA groups, while 4.3% recurrences were confirmed in the IAC group. As for TSCT variables, we found AIS group showed dominantly higher 91.07%PGGN pattern and 87.50% round/oval nodules than that in MIA and IAC group. In contrast, MIA group showed more cases with undefined border and vascular convergence than AIS and IAC group. Importantly, IAC group uniquely showed higher frequency of pleural invasion compared with MIA and AIS group. The majority of patients (82.1%) in IAC group showed ≥ 50% solid proportion. We found diameter and solid diameter of the lesions were notably larger in the IAC group compared with AIS and MIA groupin quantitative aspect. In addition, for MGGNs, the CT values of ground-glass opacity (GGO) and ground-glass opacity solid portion (GGO-solid) were both higher in the IAC group than AIS and MIA. Finally, we also observed that smooth margin took a dominant proportion in the AIS group while most cases in the IAC group had a lobulate margin. Patients in MIA and IAC group shared higher level of air bronchograms and vacuole signs than AIS group. Conclusions: The unique features in different groups identified by TSCT had diagnosis value for lung adenocarcinoma.

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