Objective:

To explore clinical and imaging characteristics of patients with bronchiolar adenoma (BA).

Methods:

A retrospective analysis was performed on clinical data and chest computed tomography (CT) images of 27 cases diagnosed with BA. Patients were admitted to the First Hospital of Jilin University from July 2019 to August 2021. All 27 cases underwent plain CT scan

of which 15 cases underwent enhanced CT scan. Basic clinical data

medical history

clinical manifestations

distribution and morphology of pulmonary lesions on chest CT images were analyzed.

Results:

Among the 27 case

s

7 were males and 20 were females

aged from 31 to 79 years

and most of them were asymptomatic (23 cases). The lesions were all located in the subpleural area

of which 21 cases occurred in the lower lobes of both lungs

mainly small solid nodules with clear quasi circular boundary

2-15 mm in size

6 cases contained bubble-like lucencies

and the solid components were slightly enhanced on contrast-enhanced CT scan. During the follow-up

the volume of some lesions increased slightly

and no recurrence and metastasis were found after operation.

Conclusion:

The clinical symptoms of BA are nonspecific and the imaging manifestations are diverse

so it is easy to be misdiagnosed. It is necessary to improve the comprehensive understanding of the disease and do a good job in differential diagnosis.