Tuberculosis (TB) remains a significant cause of death from an infectious disease worldwide. The diagnosis of pulmonary TB in children is often challenging as children present with non-specific clinical symptoms, have difficulties providing specimens and have a low bacillary load. Radiological imaging supports a clinical diagnosis of pulmonary TB in children, can assess response to treatment and evaluate complications of TB. However, radiological signs on plain radiographs are often non-specific and inter-observer variability in the interpretation contribute to the difficulties in radiological interpretation and diagnosis. The goal of this review is to discuss the advantages and features of cross-sectional imaging such as ultrasound, Computed tomography (CT) and Magnetic resonance imaging (MRI) in diagnosing pulmonary TB (PTB) and its complications in children.