Intrapulmonary Bronchogenic Cyst: CT and Pathologic Findings in Five Adult Patients

Abstract

Intrapulmonary bronchogenic cysts in adults appear on CT as well-defined ovoid lesions with the attenuation of soft tissue or water, similar to their mediastinal counterparts. Associated with these cysts are areas of mosaic low attenuation and bandlike linear attenuation representing histopathologically confirmed emphysema and bronchiolization or fibrotic change or both in the surrounding lung.

Bronchogenic Cysts of the Lung: Report of 29 Cases

“…It may be difficult to differentiate an intrapulmonary BC from an acquired cystic lesion (such as a lung abscess, a hydatid cyst, an infected bulla, lobar emphysema, fungal diseases, and tuberculosis, especially when the lesions manifested are air-filled or have an air-fluid level). There are no specific CT and MR imaging findings that allow easy differentiation [1,5,7]. We operated on two of our patients based on the pre-diagnosis of bulla and one based on the pre-diagnosis of hydatid cyst.…”

Cytologic Features of Benign Solitary Pulmonary Nodules with Radiologic Correlation and Diagnostic Pitfalls

“…Sometimes, however, they can present with symptoms due to complications such as hemorrhage, infection or obstruction. On chest radiograph, the bronchogenic cyst appears as a well-defined homogenous mass with a smooth margin, which shows variable attenuation on CT. 47,48 Histologically, a bronchogenic cyst typically has a dense fibrous capsule and is lined by ciliated respiratory columnar epithelium. 46,48 In our case, the diagnosis of bronchogenic cyst was highly suspected based on the radiologic appearance of the lesion.…”

A pitfall in the diagnosis of giant bronchogenic cyst presented as loculated pleural effusion

“…The diagnosis of BC is confirmed by the presence of the tracheal or bronchial structure in cyst wall, ciliated pseudostratified columnar epithelium lining, hyaline cartilage and smooth muscle in cyst wall. Other histological findings may include squamous metaplasia, elastic fibers, nerve trunks, and adipose tissue [4,8].…”