Frosted glass nodule in the left lung refers to the presence of a cloudy, round or round-like thin shadow with a density similar to that of frosted glass, with a diameter of less than 10 mm in the left lung on chest CT. Left lung glassy nodules may be inflammation and tuberculosis, or malignant tumors, and its benign and malignant chances are related to factors such as nodule size, density and growth pattern.
1. Nodule size: the larger the diameter, the greater the possibility of malignancy. For small glass-like nodules with a diameter of less than 5mm, the probability of malignancy is less than 1%. The probability of malignancy is 6% to 28% for small glassy nodules with a diameter of 6mm to 10mm.
2. Density: the more solid components in the lungs, the higher the probability of malignancy. Generally speaking, the probability of malignancy of mixed ground-glass nodules is greater than that of pure ground-glass nodules.
3. Growth pattern: diffuse growth is mostly benign, and focal growth is more likely to be malignant.
If there is a ground glass nodule in the left lung, it is recommended to go to the respiratory department or thoracic surgery department of the hospital for further consultation and diagnosis as soon as possible to avoid delaying the condition.