What does a ground-glass nodule in the lung mean?
Oct 17, 2023
Source: Cainiu Health
Dr. Yuan Qing
Introduction
In general, a pulmonary ground-glass nodule is an imaging concept referring to a hazy area of increased density on thin-section CT scans, in which the underlying bronchial and vascular structures remain visible. Ground-glass nodules in the lungs are purely radiological findings rather than a specific disease, and many different clinical conditions may lead to their appearance.
Generally, a pulmonary ground-glass nodule (GGN) is an imaging concept referring to a hazy area of increased lung density seen on thin-section CT scans, in which the underlying bronchial and vascular structures remain visible. The details are as follows:
A pulmonary ground-glass nodule is an imaging finding rather than a specific disease. In clinical practice, various conditions may cause ground-glass nodules in the lungs, such as tumors, infections, localized hemorrhage, or interstitial fibrosis. Based on size and characteristics, these nodules can be classified into three types: pure ground-glass nodules, part-solid nodules, and solid nodules. Histologically, most of these nodules represent benign lesions.
In general, ground-glass nodules smaller than 8 mm in diameter are more likely to be benign, and the primary management strategy involves follow-up observation with periodic chest CT scans. However, if a ground-glass nodule is larger than 8 mm or contains solid components, the likelihood of malignancy increases significantly. In such cases, more aggressive management may be required, including possible percutaneous lung biopsy or even surgical resection, with definitive diagnosis confirmed by postoperative pathological examination.
If patients experience any symptoms or discomfort, they should promptly seek medical attention at a hospital to avoid delays in diagnosis and treatment.
