AJR
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Prout, T. M.
Right arrow Articles by Pickhardt, P. J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Prout, T. M.
Right arrow Articles by Pickhardt, P. J.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?

Inverted Appendiceal Stumps Simulating Large Pedunculated Polyps on Screening CT Colonography

Tyler M. Prout1, Andrew J. Taylor1 and Perry J. Pickhardt1

1 All authors: Department of Radiology, University of Wisconsin Medical School, E3/311 Clinical Science Center, 600 Highland Ave., Madison, WI 53792-3252.


Figure 1
View larger version (130K):

[in a new window]
  		Fig. 1A —Inverted appendiceal stump in 63-year-old asymptomatic woman referred to CT colonography (CTC) for routine colorectal cancer screening. Three-dimensional endoluminal view from prone CTC data set shows discrete 10-mm pedunculated polypoid lesion located at medial aspect of cecal tip.

 

Figure 2
View larger version (129K):

[in a new window]
  		Fig. 1B —Inverted appendiceal stump in 63-year-old asymptomatic woman referred to CT colonography (CTC) for routine colorectal cancer screening. Prone transverse (B) and coronal (C) 2D images from CTC confirm pedunculated lesion (arrow) detected on 3D view and show its soft-tissue composition. Lesion is located at or near appendectomy site, but this does not completely exclude possibility of neoplasm.

 

Figure 3
View larger version (89K):

[in a new window]
  		Fig. 1C —Inverted appendiceal stump in 63-year-old asymptomatic woman referred to CT colonography (CTC) for routine colorectal cancer screening. Prone transverse (B) and coronal (C) 2D images from CTC confirm pedunculated lesion (arrow) detected on 3D view and show its soft-tissue composition. Lesion is located at or near appendectomy site, but this does not completely exclude possibility of neoplasm.

 

Figure 4
View larger version (142K):

[in a new window]
  		Fig. 1D —Inverted appendiceal stump in 63-year-old asymptomatic woman referred to CT colonography (CTC) for routine colorectal cancer screening. Digital photograph from optical colonoscopy performed same day as CTC shows same cecal lesion. Given endoscopic appearance, an inverted appendiceal stump was favored, which was further supported by biopsies that were negative for neoplasm.

 

Figure 5
View larger version (113K):

[in a new window]
  		Fig. 2A —Inverted appendiceal stump in 58-year-old asymptomatic woman referred for screening CT colonography (CTC). Three-dimensional endoluminal view from CTC shows a large pedunculated cecal polyp arising near expected location of appendiceal orifice.

 

Figure 6
View larger version (137K):

[in a new window]
  		Fig. 2B —Inverted appendiceal stump in 58-year-old asymptomatic woman referred for screening CT colonography (CTC). Transverse 2D image with soft-tissue window settings shows a punctate focus of apparent fat attenuation within polyp head (arrow). Although low-dose technique precluded confident exclusion of an adenomatous polyp based on this finding, possibility of inverted appendiceal stump was suggested.

 

Figure 7
View larger version (149K):

[in a new window]
  		Fig. 2C —Inverted appendiceal stump in 58-year-old asymptomatic woman referred for screening CT colonography (CTC). Digital photograph from optical colonoscopy performed same day as CTC shows same cecal lesion, which was thought to represent a true polyp and removed by snare with cautery. Inverted appendiceal stump was confirmed at pathologic evaluation.

 

Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?



HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2006 by the American Roentgen Ray Society.