Friday, 14 November 2014

RADIOLOGY MCQ --AIPGMEE AND FRCR---SULCUS SIGN

241. An abnormally deep costophrenic sulcus sign is noted in
a.pneumothorax in supine position
b.pleural effusion in supine position
c.pleural effusion in decubitus position
d.pneumothorax in standing position

e.collapse of lower lobe


ANS----a
 With supine radiographs, air collects anterior to the lung and there is no visible lung edge. In this situation a pneumothorax can produce an unusually sharp mediastinal border and hemidiaphragm and an abnormally deep costophrenic sulcus.






Image source ---www.resus.com.au

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