To review pitfalls in radiologic diagnosis of lung cancer To be familiar with radiologic blind spots and uncommon manifestations of lung cancer

Chest radiography (CXR) remains an important modality for evaluation of the lungs and mediastinum and provides vast amount of useful information. A CXR is two dimensional representation of a three-dimensional structure and a CXR includes many overlapping structures.The information derived from the configurations andinterrelationships of anatomic structures in the lung, mediastinum, and pleura forms the basis for the understanding of “Lines and Stripes” on CXR. The proportion of missed lung cancer on CXR is about 25%-90%, and major contributing factor is superimposed normal structures. On...

REVIEW OF THE RADIOLOGIC BLIND SPOTS ∎Lung apices The most common location for missed lung cancer (Fig. 3). Little lung parenchyma compared to overlying soft tissue and bone. Overlapping structures Anterior 1st rib overly posterior 3rd to 4th ribs : make lung apicesto be overally increased opacity Often asymmetric calcification of the first costal cartilage A lordotic view : helpful in some cases. Apical pleural cap Thickening of extrapleural fat, dense pleural and subpleural fibrosis Not unusual finding with no clinical significance Usually less than...

Chest radiography still remains one of the most basic and widely used imaging examinations in radiology. All diagnostic radiologists need to have an effective and efficient search pattern that takes into account the common blind spots. Every inch of chest radiograph needs to be assessed, and radiologic blind spots deserve extra attention. Radiologists must develop a routine when examining chest radiographs that ensures that all areas are scrutinized. It is only through exercises during thousands of examinations that the pattern of a normal chest can...

Goun Choi, MD, Department of radiology, Soonchunhyang University Seoul Hospital, South Korea; [email protected] Sung Hwan Bae, MD, Department of radiology, Soonchunhyang University Seoul Hospital, South Korea; [email protected] Boda Nam, MD, Department of radiology, Soonchunhyang University Seoul Hospital, South Korea; [email protected] Corresponding author: Jung Hwa Hwang, MD,PhD, Department of radiology, Soonchunhyang University Seoul Hospital, South Korea; [email protected]

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