BACKGROUND: @entity5474 ( @entity5474 ) may show different presentation in @entity378 ( @entity378 )-endemic countries. The aim of this study was to identify clinical and radiological predictors favoring benign or malignant @entity5474 in @entity378 -endemic region. METHODS: Two hundred one SPNs in 201 consecutive Korean @entity1 were included (< 3 cm in diameter, all confirmed by pathology or bacteriology, 93 benign and 108 @entity5 ). For clinical parameters, age, sex, smoking status and amount, and past history of @entity1907 and @entity6 were investigated retrospectively. For radiological parameters, size, location, margin characteristics, presence of calcification, @entity456 , surrounding satellite nodule, cavitation, internal low attenuation, open bronchus sign, surrounding ground-glass opacity, enhancement pattern of the SPNs and mediastinal @entity1600 ( @entity1600 ) enlargement were analyzed on chest CT scans. RESULTS: @entity1 with a older age (60.7 +/- 9.6 vs 56.2 +/- 13.1, p = 0.008) and more than 40-pack years smoking (27.8% vs 14.0%, p = 0.017) were more frequently related with malignant than benign @entity5474 . On chest CT scans, spiculated margin, contrast enhancement more than 20 Hounsfield unit and presence of @entity456 and mediastinal @entity1600 enlargement were more frequently observed in malignant than benign SPNs. In contrast to previous studies, satellite lesions (21.5% vs 1.9%, p < 0.001) and cavitation (20.4% vs 5.6%, p = 0.001) were more frequently seen in benign than malignant @entity5474 . Positive predictive values of benignity were 90.9% and 76.0%, respectively, when satellite lesions and cavitation were found in cases of @entity5474 . CONCLUSION: Satellite lesions and cavitation on chest CT scan could be useful predictors for benign @entity5474 in @entity378 .

Predictors for benign solitary pulmonary nodule in XXXX -endemic area.

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients'] @entity6 :: ('MESH:D003920', 'Disease') :: ['diabetes mellitus'] @entity5 :: ('MESH:D009369', 'Disease') :: ['malignant diseases'] @entity1600 :: ('MESH:D014388', 'Disease') :: ['LN', 'lymph node'] @entity5474 :: ('MESH:D003074', 'Disease') :: ['Solitary pulmonary nodule', 'SPN'] @entity456 :: ('MESH:D010995', 'Disease') :: ['pleural tag'] @entity378 :: ('MESH:D014376', 'Disease') :: ['TB-endemic areas', 'TB', 'tuberculosis'] @entity1907 :: ('MESH:D014397', 'Disease') :: ['pulmonary tuberculosis']
@entity378 :: (MESH:D014376,Disease) :: ['tuberculosis']
