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


     

This Article
Right arrow Abstract Freely available
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 Jang, H.-J.
Right arrow Articles by Kim, S. H.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Jang, H.-J.
Right arrow Articles by Kim, S. H.
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?
Hotlight (NEW!)
Right arrow
What's Hotlight?

Acute Diverticulitis of the Cecum and Ascending Colon

The Value of Thin-Section Helical CT Findings in Excluding Colonic Carcinoma

Hyun-Jung Jang1, Hyo K. Lim, Soon Jin Lee, Won Jae Lee, Eung Yeop Kim and Seung Hoon Kim

1 All authors: Department of Radiology, Samsung Medical Center Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, Seoul 135-710, Korea.



View larger version (162K):

[in a new window]
  		Fig. 1A. —Diverticulitis of ascending colon in 54-year-old man. Thin-section axial CT scan shows marked wall thickening of ascending colon with inflamed diverticulum (arrow), mild peridiverticular inflammation and preservation of layered enhancement pattern as inner hyperattenuating layer, thickened middle layer of low attenuation (m), and outer high attenuation.

 


View larger version (155K):

[in a new window]
  		Fig. 1B. —Diverticulitis of ascending colon in 54-year-old man. Axial CT scan of contiguous slice cephalad to A more clearly shows preserved enhancement pattern of thickened colonic wall. Also note pericolic infiltration (arrowheads) and venous engorgement (arrows).

 


View larger version (147K):

[in a new window]
  		Fig. 2. —Ascending colonic carcinoma in 61-year-old woman. Axial CT scan shows colonic wall thickening (short straight arrows) with enhancement, pericolic strands, and diverticula (curved arrows), which meet diagnostic criteria of diverticulitis on conventional CT. Note loss of layered enhancement pattern of involved colonic wall. Also note lumen of colon (long thin arrow).

 


View larger version (144K):

[in a new window]
  		Fig. 3. —Acute diverticulitis of ascending colon in 27-year-old woman. Thin-section axial CT scan shows wall thickening of ascending colon (short black arrow) and terminal ileum (white arrow) with layered enhancement pattern clearly as inner hyperattenuating layer, middle layer of low attenuation, and outer hyperattenuating layer. There is inflamed diverticulum (long black arrow) that contains fecalith and peridiverticular infiltration.

 


View larger version (139K):

[in a new window]
  		Fig. 4. —Carcinoma of ascending colon in 68-year-old man. Compared with Figure 3, thin-section axial CT scan shows greater thickness of colonic wall involved by enhancing colonic carcinoma and resultant loss of layered enhancement pattern (solid arrow). Also note marked pericolic infiltration (open arrows).

 


View larger version (146K):

[in a new window]
  		Fig. 5. —Overlap in wall thickness and pericolic infiltration between diverticulitis and colonic carcinoma. Thin-section axial CT scan of 61-year old man with ascending colonic carcinoma shows similar thickness of involved colonic wall and more pericolic infiltration than that in Figure 3. Note loss of layered enhancement pattern as result of enhancement of tumor involving colonic wall (solid arrows) and engorged mesenteric vessels (open arrow).

 


View larger version (137K):

[in a new window]
  		Fig. 6. —Ascending colonic diverticulitis in 37-year-old woman. Thin-section axial CT scan at level of proximal ascending colon shows inflamed diverticulum within surrounding peridiverticular inflammation recognized by enhancing diverticular wall (arrowheads), which may be overlooked on unenhanced imaging.

 


View larger version (135K):

[in a new window]
  		Fig. 7A. —56-year-old man with obstructive colitis proximal to colonic carcinoma. Axial CT scan shows concentric wall thickening (long arrows) with preservation of layered enhancement pattern in ascending colon. Note diverticulum with thickened wall (short arrow), which was interpreted as inflamed diverticulum by both observers. However, diverticulum is not accompanied by peridiverticular inflammation.

 


View larger version (153K):

[in a new window]
  		Fig. 7B. —56-year-old man with obstructive colitis proximal to colonic carcinoma. Axial CT scan at level caudal to A shows colonic wall being replaced by enhancing soft tissue, representing carcinoma (arrows) found at most distal segment of layered wall thickening.

 

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 © 2000 by the American Roentgen Ray Society.