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Published online before print December 26, 2002, 10.1148/radiol.2262010556
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Small Pulmonary Nodules: Detection at Chest CT and Outcome1

Matthew S. Benjamin, MD, Elizabeth A. Drucker, MD, JD, Theresa C. McLoud, MD and Jo-Anne O. Shepard, MD

1 From the Department of Radiology, Massachusetts General Hospital, 55 Fruit St, Founders House 2-202B, Boston, MA 02114. From the 1999 RSNA scientific assembly. Received March 5, 2001; revision requested April 8; final revision received June 14, 2002; accepted June 27. Address correspondence to M.S.B. (e-mail: matthew.benjamin@uhn.on.ca).



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  		Figure 1a. Interval growth of a nodule (arrow) in the right middle lobe in a 24-year-old woman with a previously resected osteosarcoma. (a) Transverse helical CT image of the right middle lobe demonstrates a 2-mm nodule. (b) Transverse helical CT image obtained 5 months later through the same level demonstrates interval growth of the nodule to 8 mm.

 


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  		Figure 1b. Interval growth of a nodule (arrow) in the right middle lobe in a 24-year-old woman with a previously resected osteosarcoma. (a) Transverse helical CT image of the right middle lobe demonstrates a 2-mm nodule. (b) Transverse helical CT image obtained 5 months later through the same level demonstrates interval growth of the nodule to 8 mm.

 


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  		Figure 2a. Interval growth of a nodule (arrow) in the right middle lobe in a 72-year-old woman with previously resected colon cancer. (a) Transverse helical CT image of the right middle lobe demonstrates a 7-mm nodule. (b) Transverse helical CT image obtained 10 months later through a similar level demonstrates interval growth to 17 mm.

 


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  		Figure 2b. Interval growth of a nodule (arrow) in the right middle lobe in a 72-year-old woman with previously resected colon cancer. (a) Transverse helical CT image of the right middle lobe demonstrates a 7-mm nodule. (b) Transverse helical CT image obtained 10 months later through a similar level demonstrates interval growth to 17 mm.

 




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