Lung nodules that are shallowly lobulated are better than those that are deeply lobulated, but are generally worse than those that are not lobulated.
Lung nodule lobulation is described on imaging when the edges of a lung nodule are not smooth, and there are multiple curved protrusions or curved depressions in the cutaneous pattern.
Lung nodule lobulation is characterized by shallow and deep lobulation. Generally speaking, shallow lobulation of lung nodules is benign in most cases, such as tuberculosis ball, inflammatory nodules, etc.; deep and large lobulation, malignant possibility is higher.
When the lung nodule is small, there is no lobarization, but larger lung nodules will have shallow or deep lobarization, and deep lobarization suggests that the diameter of the lung nodule is larger and the location is deeper, so the possibility of lung cancer is relatively higher.
However, the nature of the lesion cannot be judged solely on the basis of the presence of lobar sign in lung nodules. When the lung nodule is associated with lobulation, it should be analyzed in combination with other abnormal features of chest CT, such as vacuolar sign, whether there are burrs on the edge, whether there are pleural depression signs, and it should be combined with the results of tumor markers, PET-CT, and lung puncture biopsy, etc., in order to diagnose the nature of the lung nodule.
When lung nodules are detected by examination, regular review should be conducted in strict compliance with medical advice, and therapeutic interventions should be carried out in accordance with medical advice.