Final answer:
The next step for a solitary pulmonary nodule on CXR is to evaluate its nature through additional imaging studies or biopsy. If the nodule appears benign and has specific characteristics, watchful waiting may be an option.
Step-by-step explanation:
The next step for a solitary pulmonary nodule seen on a chest x-ray is to further evaluate its nature. This can be done through additional imaging studies such as a CT scan or PET scan. The goal is to determine whether the nodule is benign or malignant.
If the nodule appears suspicious for cancer, a biopsy may be necessary. This can be done through a minimally invasive procedure called a needle aspiration or by removing the nodule surgically. The tissue sample obtained from the biopsy will be sent for pathology to determine the presence of cancer.
In some cases, if the nodule appears benign and has specific characteristics, such as a well-defined shape and no growth over time, the doctor may opt for a watchful waiting approach. This involves periodic monitoring of the nodule with follow-up CT scans to ensure there are no worrisome changes.