What is the term for the dilation of the bronchus that is often associated with secondary lung infections?

The correct term for the dilation of the bronchus that is often associated with secondary lung infections is bronchiectasis. This condition involves the abnormal and permanent enlargement of the bronchial tubes, which can result from chronic inflammation or infection. As the bronchi dilate, they become damaged and can lead to an accumulation of mucus, creating an environment that is conducive to further lung infections.

Bronchiectasis typically stems from underlying health issues such as cystic fibrosis, chronic obstructive pulmonary disease (COPD), or recurrent respiratory infections. This understanding is critical in the medical field, as recognizing bronchiectasis and its potential complications can guide effective treatment strategies.

The other terms presented do not relate to the dilation of the bronchus. Bradycardia refers to a slower than normal heart rate, bronchoscopy is a procedure to visualize the inside of the airways, and bromopnea refers to bad-smelling breath or breath that has an unusual odor. Therefore, these options do not apply to the condition described in the question.