A Pancoast tumour otherwise known as superior sulcus tumour refers to a relatively uncommon situation where a primary bronchogenic carcinoma arises in the lung apex and invades the surrounding soft tissues. Plain films demonstrate a soft tissue opacity at the apex of the lung. Occasionally rib involvement or extension into the supraclavicular fossa may be evident. http://radiopaedia.org/articles/pancoast-tumour
Rt.middle lobe consolidation refers to consolidation in part (incomplete) or all (complete) of the Rt middle lobe. features of right middle lobe (RML) consolidation on CXR include: opacification of the RML abutting the horizontal fissure indistinct right heart border loss of the medial aspect of the right hemidiaphragm air bronchograms http://radiopaedia.org/articles/right-middle-lobe-consolidation
Emphysema is one end of the spectrum of findings in COPD. The disease is usually quite pronounced by the time the typical appearances are evidence on a plain radiograph. In this case the hyperinflated nature of the lungs is very readily apparen.
Mucous plugging - right middle lobe collapse: Gross middle lobe collapse is associated with a filling defect in the right bronchus intermedius and poor aeration of the bronchi beyond. Differential is between a foreign body and mucous plug.
Typical skeletal phenotypic features of Marfan syndrome presenting as a right-sided pneumothorax but with marked cardiovascular manifestations including aortic root dilatation and aortic regurgitation with resultant left ventricular enlargement.
Sarcoidosis is a non-caseating granulomatous multi-system disease with a wide range of clinical and radiographic manifestations. As 90% of patients have pulmonary involvement, and chest x-rays are readily available and have low radiation burden, the pattern of nodal and parenchymal involvement is used to 'stage' sarcoidosis : see chest x-ray staging of sarcoidosis. Read more: http://radiopaedia.org/articles/sarcoidosis-1
Chilaiditi's sign is the asymptomatic interposition of colon between the liver and the diaphragm. When accompanied by pain this is termed Chilaiditi syndrome, which is a common cause of pseudopneumoperitoneum and .