A 25-year-old woman is admitted in the Radiology Department to evaluate by echography a tumefaction in the right axillary region. Multiple lymph nodes are found and the examination is completed by neck computed tomography. The presence of inflammatory lymph nodes associated with a positive serology for Bartonella Henselae led to the diagnosis of «Cat-scratch disease». Fortuitously, we discovered a hypodense left upper lung. A chest CT in breathing in and out revealed bronchial discontinuity of the apicoposterior left upper lobe bronchus. Associated radiological signs were: air trapping in the culmen while breathing out (Fig. A), local hypovascularization, small bronchoceles (Fig. B, arrow) and the presence of two bronchogenic cysts in the upper (Fig. C) and lower mediastinum.