Micronodules

Micronodules are small, discrete lumps or masses, typically less than one centimeter in diameter. The term is often used in a medical context to describe small findings on medical imaging, most commonly in the lungs. Pulmonary micronodules are generally considered benign and are often discovered incidentally during imaging performed for other reasons. Their appearance on imaging, such as a CT scan, can vary, but they are usually well-defined and do not significantly alter the overall structure of the lung.

The significance of pulmonary micronodules depends on several factors including their size, number, density, and whether they are solid or non-solid. Most solitary, small, and well-defined micronodules are not indicative of serious disease and may be monitored with serial imaging. However, if micronodules are numerous, rapidly growing, or have suspicious characteristics, further investigation may be warranted to rule out conditions such as early-stage lung cancer or inflammatory processes. The management strategy for pulmonary micronodules is guided by established imaging guidelines and often involves a multidisciplinary approach.