HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Full Text (PDF) Submit a response Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by McAdams, H. P. Articles by Matsumoto, S. Search for Related Content PubMed PubMed Citation Articles by McAdams, H. P. Articles by Matsumoto, S.

Bronchogenic Cyst: Imaging Features with Clinical and Histopathologic Correlation¹

¹ From the Department of Radiology, Box 3808, Duke University Medical Center, Durham, NC 27710 (H.P.M.); the Department of Radiologic Pathology, Armed Forces Institute of Pathology, Washington, DC (W.M.K., M.L.R.d.C.); the Department of Radiology and Nuclear Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD (M.L.R.d.C.); and the Department of Radiology, Jikei University of Medicine, Tokyo, Japan (S.M.). From the 1995 RSNA scientific assembly. Received December 20, 1999; revision requested January 25, 2000; revision received February 24; accepted February 22. Address correspondence to H.P.M.

PURPOSE: To characterize the imaging features of bronchogenic cysts.

MATERIALS AND METHODS: The computed tomographic (CT) and/or magnetic resonance (MR) or ultrasonographic images in 68 histopathologically proved cases of bronchogenic cyst in 38 male and 30 female patients, aged newborn to 72 years (mean, 22 years), were retrospectively reviewed.

RESULTS: There were 58 mediastinal and 10 extramediastinal cysts. At CT (n = 62), 60 cysts were sharply marginated with smooth (n = 35) or lobulated (n = 25) borders. Twenty-five cysts were of water attenuation, 25 were of soft-tissue attenuation, two were air filled, two had an air-fluid level, and two had dependent milk of calcium. On T1-weighted MR images (n = 23), 18 cysts were hyperintense and five were isointense to cerebrospinal fluid. On T2-weighted MR images (n = 18), 17 cysts were isointense or hyperintense to cerebrospinal fluid. Of the 25 soft-tissue–attenuation lesions at CT, 11 appeared cystic because of internal homogeneity, lack of internal enhancement, mural enhancement, and characteristic location. Fourteen appeared solid based on morphology and attenuation. MR imaging of nine of the latter showed marked hyperintensity on T2-weighted images.

CONCLUSION: CT of bronchogenic cysts typically shows sharply marginated mediastinal masses of soft-tissue or water attenuation. Most appear cystic. A minority appear solid and can be confused with other lesions; MR imaging can be useful for elucidating the cystic nature of these lesions.

Index terms: Bronchi, cyst, 60.1441, 67.1441, 67.3156, • Lung, cysts, 60.1441 • Mediastinum, cysts, 67.1441, 67.3156 • Thorax, CT, 60.12111, 60.12112 • Thorax, MR, 60.121411

This article has been cited by other articles:

				E. Y. Lee, P. M. Boiselle, and R. H. Cleveland Multidetector CT Evaluation of Congenital Lung Anomalies Radiology, June 1, 2008; 247(3): 632 - 648. [Abstract] [Full Text] [PDF]

				A. R. Zambudio, J. T. Lanzas, M. J. R. Calvo, P. J. G. Fernandez, and P. P. Paricio Non-neoplastic mediastinal cysts Eur. J. Cardiothorac. Surg., November 1, 2002; 22(5): 712 - 716. [Abstract] [Full Text] [PDF]

				M.-Y. Jeung, B. Gasser, A. Gangi, A. Bogorin, D. Charneau, J. M. Wihlm, J.-L. Dietemann, and C. Roy Imaging of Cystic Masses of the Mediastinum RadioGraphics, October 1, 2002; 22(90001): S79 - 93. [Abstract] [Full Text] [PDF]

				Y. C. Yoon, K. S. Lee, T. S. Kim, J. Kim, Y. M. Shim, and J. Han Intrapulmonary Bronchogenic Cyst: CT and Pathologic Findings in Five Adult Patients Am. J. Roentgenol., July 1, 2002; 179(1): 167 - 170. [Abstract] [Full Text] [PDF]