Intrapulmonary Bronchogenic Cysts: Computed Tomoraphy, Clinical and Histopathological Correlations
Resource
JOURNAL OF THE FORMOSAN MEDICAL ASSOCIATION v.106 n.1 pp.8-15
Journal
JOURNAL OF THE FORMOSAN MEDICAL ASSOCIATION
Journal Volume
v.106
Journal Issue
n.1
Pages
8-15
Date Issued
2007
Date
2007
Author(s)
CHANG, YEUN-CHUNG
CHANG, YIH-LEONG
CHEN, SSU-YUAN
WANG, TEH-CHEN
YANG, PAN-CHYR
LIU, HON-MAN
LEE, YUNG-CHIE
Abstract
BACKGROUND/PURPOSE: Bronchogenic cysts (BCs) are usually located in the mediastinum and they occur less commonly in the lung parenchyma. This study investigated the findings from computed tomography (CT) images, clinical presentation and histopathologic findings of intrapulmonary BCs. METHODS: From the last 7 years, the CT images of 20 patients (12 females, 8 males; mean age, 38.8 +/- 21.7 years; median age, 34 years) with intrapulmonary BC were available. Contrast-enhanced CT findings were characterized and correlated with clinical presentation and histopathologic findings (using Fisher's exact tests). RESULTS: The majority of intrapulmonary BCs were subpleural in location (55%), in the lower lobes (60%), symptomatic (80%), and in adults (90%). Three CT patterns were identified: cyst with content of fluid attenuation (9 patients), cyst with air and fluid content (9 patients), cyst with content of soft tissue attenuation (2 patients). Preoperative diagnosis of intrapulmonary BC was correct in only 20% using the CT criteria of cysts with fluid attenuation and without anomalous blood supply. Cysts with air component were significantly larger than those without air component (p = 0.0452), but cyst size and air component were not correlated with clinical presentation. Surrounding infiltration or thick wall on CT were significantly correlated with the presence of any clinical symptom (p = 0.014) or fever (p = 0.042). CT findings of surrounding consolidation, ground glass opacity or thick wall were significantly correlated with chronic inflammation or pneumonic change on histopathology (p = 0.0008). CONCLUSION: There is a wide spectrum of intrapulmonary BCs that have CT findings that are correlated with clinical presentations and histopathologic findings.
Subjects
BRONCHI
CLINICOPATHOLOGIC FEATURES
COMPUTED TOMOGRAPHY
CYST
LUNG