
35-year-old male presented with 2 weeks history of dyspnea and fever and was diagnosed with pneumonia. Frontal chest radiograph reveals opacified right upper lobe with bulge in the minor fissure (white arrow) representing the radiologic sign, bulging fissure sign.
Kumaresh A, Kumar M, Dev B, Gorantla R, Sai PV, Thanasekaraan V. Back to Basics - 'Must Know' Classical Signs in Thoracic Radiology. J Clin Imaging Sci. 2015;5:43. Published 2015 Jul 31. doi:10.4103/2156-7514.161977