Question

multiple choice question
which of the following radiographic findings favors a benign pulmonary nodule?
please select your answer...
a central or laminated calcification
b irregular or spiculated margins
c rapid doubling time (<30 days)
d associated pleural effusion

Explanation:

• Option A: Central or laminated calcification is a characteristic of benign pulmonary nodules. Benign nodules often have this type of calcification pattern.
• Option B: Irregular or spiculated margins are more commonly associated with malignant (cancerous) nodules. Malignant cells tend to invade surrounding tissues, creating such margins.
• Option C: A rapid doubling time (\(<30\) days) is a sign of malignancy. Malignant cells divide and grow more quickly compared to benign cells.
• Option D: Associated pleural effusion (fluid around the lung) is more likely to be seen with malignant processes rather than benign nodules.

Answer:

A. Central or laminated calcification