What size defines a pulmonary mass?

A pulmonary mass is generally defined as a localized area of abnormal tissue in the lungs that measures larger than 30 mm. This size distinction is important in clinical practice, as it helps differentiate between a pulmonary nodule and a mass. Typically, a nodule is classified as being smaller than 30 mm, while lesions greater than this size raise more concern for malignancy and warrant further evaluation, such as imaging or biopsy.

In clinical terms, the specific measurement of 30 mm provides a clear guideline for healthcare professionals to make decisions regarding further diagnostic testing or surveillance. Understanding this threshold allows for a more accurate assessment of lung lesions and facilitates appropriate management strategies in patients with potential lung pathology.