Bronchial adenoma commonly present as –
**Core Concept**
Bronchial adenomas are rare, benign tumors originating from the mucous glands of the bronchial tree. They are a type of salivary gland-like tumor found in the lungs. The most common type is the mucous-secreting adenoma.
**Why the Correct Answer is Right**
Bronchial adenomas typically present as a mass in the bronchus, often causing symptoms such as coughing, wheezing, and hemoptysis (coughing up blood). The mass may be visible on chest X-rays or CT scans. These tumors are usually well-circumscribed and do not invade surrounding tissues, which is characteristic of their benign nature.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because bronchial adenomas typically do not present as a diffuse infiltrative process, unlike some types of lung cancer.
**Option B:** This option is incorrect because bronchial adenomas are not typically associated with systemic symptoms such as fever or weight loss, which are more common in malignant processes.
**Option C:** This option is incorrect because bronchial adenomas are not usually associated with pleural effusion (fluid accumulation in the pleural space), which can be seen in some types of lung cancer.
**Clinical Pearl / High-Yield Fact**
Bronchial adenomas are often mistaken for lung cancer, especially on imaging studies. However, their benign nature and characteristic presentation can be distinguished by careful clinical evaluation and histopathological examination.
**Correct Answer: C. A mass in the bronchus.**