Paratracheal air cysts are uncommon findings in the pediatric population

Lee, Min Kyung; Kim, Eun Young; Jeong, Yu Mi; Kim, Jeong-Ho; Choi, Hye-Young

doi:10.1007/s11604-016-0561-3

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…These findings suggest that PACs probably do not have a congenital etiology. In a recent report, the prevalence of PACs in pediatric patients (1.3%) was lower than in adults [12], which also suggested the underlying mechanism probably involves an acquired etiology.…”

Section: Discussionmentioning

confidence: 99%

Incidental Paratracheal Air Cysts on Thoracic CT and Their Association with Chronic Inflammatory Lung Disease

Kim

Lee

Kim

et al. 2017

BioMed Research International

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Purpose. To determine the association between the progression of upper lung fibrosis and paratracheal air cysts (PACs) size. Materials and Methods. The thoracic CT images of 4573 patients were reviewed for the prevalence, size, and location of PACs and their communication with trachea. In addition, the presence of upper lung fibrosis, emphysema, and bronchiectasis was evaluated in patients with PACs and compared with a control group without PACs. Upper lung fibrosis was analyzed using a fibrosis score system. Results. The prevalence of PACs was 6.8%. Communication with tracheal lumen was demonstrated by 31.5% of patients with PACs. The prevalence of fibrosis, emphysema, and bronchiectasis in patients with PACs were 67.5%, 21.9%, and 28.3%, respectively. The prevalence of fibrosis was significantly different in the two groups by univariable and multivariable analysis (odds ratio = 2.077, P < 0.001). 140 patients with fibrosis among PAC group underwent a previous or follow-up CT; the prevalence with increase in PAC sizes was higher in patients with increase in fibrosis score than those without it (66.2% versus 17.3%, P < 0.001). Conclusions. PACs appear to be highly related to upper lung fibrosis and moderately related to bronchiectasis. In patients with fibrosis, PAC sizes tended to increase with the progression of upper lung fibrosis.

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Section: Discussionmentioning

confidence: 99%

Incidental Paratracheal Air Cysts on Thoracic CT and Their Association with Chronic Inflammatory Lung Disease

Kim

Lee

Kim

et al. 2017

BioMed Research International

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“…CT is an important tool for the evaluation of the TD and the visualization of other associated pathologies (7,8). CT can be used to assess the location, volume, contour, and wall thickness of the TDs (9). It can also detect communication between the TD and the trachea (5).…”

Section: Introductionmentioning

confidence: 99%

Volumetric study of tracheal diverticulum: a retrospective analysis in computed tomography

Gürün

Akdulum

Kaya

2021

Journal of Health Sciences and Medicine

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Aim: The aim of this study was to retrospectively evaluate the prevalence and morphology (location, diameter, number and volume) of the tracheal diverticulum (TD) on thoracic computed tomography (CT), in a sample of the Turkish population. Material and Method: The study was conducted over 15 months, from February 2020 to April 2021, and included 3,860 thoracic CT scans, of which 1,891 subjects were men and the rest were women. All of the thoracic CT scans were evaluated retrospectively. All images were reviewed for the presence or absence of the TD in the axial plane, defined as air sacs around the trachea and communication with the trachea. For volume measurement, the TD contour was manually evaluated by a single radiologist, for all patients. Descriptive statistics were reported as mean±standard deviation (SD). A p value of less than 0.05 was considered significant. Results: The mean age of the patients was 57.87±14.76 (29-84). In this study, the incidence of TD was calculated to be 0.80%. The mean tracheal diverticulum volume (TDV) and maximum transverse diameter (MTD) of TD were 983.62±1 509.80 mm3 and 8.79±6.19 mm, respectively. Conclusion: In this study, we demonstrated the volumetric measurement of TD and its prevalence. We believe that the frequency of its use in clinical practice should increase, as volumetric measurements provide healthier results than diameter measurements.

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Paratracheal air cysts are uncommon findings in the pediatric population

Abstract: In the pediatric population, the prevalence of PACs is 1.3 % as detected by chest CT. Knowledge of the prevalence and imaging findings of PAC would be useful to prevent confusion with pneumomediastinum or other cystic lesions in pediatric patients.

Cited by 2 publications

References 12 publications

Incidental Paratracheal Air Cysts on Thoracic CT and Their Association with Chronic Inflammatory Lung Disease

Incidental Paratracheal Air Cysts on Thoracic CT and Their Association with Chronic Inflammatory Lung Disease

Volumetric study of tracheal diverticulum: a retrospective analysis in computed tomography

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