Case Of the Week (COW) 25 March 2012
Contributed By: Dr. Karunakaran M. Kalathi MD,  Dr. Arun Chelladurai MD
 Consultant Radiologists, Aarthi Scans, Thirunelveli, Tamilnadu, India
Clinical Details:  A 60 year old male presented with two months history of non productive cough, weight loss, and    breathlessness,fever.   Noncontrast CT Thorax images were given. Identify the radiological sign. Mention the most probable diagnosis. ( History of aspiration excluded) 

Answer

BIR Case of Week Editors
Prof. N. Kailasanathan, Dr. S. Babupeter, Dr. Iyappan Ponnuswamy