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Diffuse Cavernous Hemangiomatosis of the Colon: Findings on Three-Dimensional CT Colonography

Raymond M. Hsu1, Karen M. Horton and Elliot K. Fishman

1 All authors: Department of Radiology, Johns Hopkins Hospital, 601 N. Caroline St., Rm. 3254, Baltimore, MD 21287-0801.



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  		Fig. 1A. —44-year-old man with 25-year history of intermittent episodes of rectal discharge of bright red blood. Conventional colonoscopic image shows submucosal vascular masses protruding into rectal lumen and intraluminal hemorrhage.

 


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  		Fig. 1B. —44-year-old man with 25-year history of intermittent episodes of rectal discharge of bright red blood. Axial CT scan obtained during virtual colonoscopy of air-insufflated colon at level of upper sacrum shows marked thickening of rectosigmoid wall with intramural phleboliths. Multiple small mesenteric soft-tissue masses are also seen.

 


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  		Fig. 1C. —44-year-old man with 25-year history of intermittent episodes of rectal discharge of bright red blood. Axial CT scan obtained during virtual colonoscopy of air-insufflated colon at level of lower lumbar spine shows thickening of ascending colon with few intramural phleboliths. One area is closely opposed and possibly adherent to anterior abdominal wall. As in B, innumerable small mesenteric masses are visible.

 


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  		Fig. 1D. —44-year-old man with 25-year history of intermittent episodes of rectal discharge of bright red blood. Volume-rendered image derived from axial CT examination presented in coronal oblique projection shows multiple abdominal phleboliths outside pelvic venous plexus.

 


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  		Fig. 1E. —44-year-old man with 25-year history of intermittent episodes of rectal discharge of bright red blood. Three-dimensional CT colonogram simulates single-contrast barium enema, showing multiple submucosal masses, with most prominent masses visible in rectosigmoid.

 


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  		Fig. 1F. —44-year-old man with 25-year history of intermittent episodes of rectal discharge of bright red blood. Three-dimensional CT colonogram simulates double-contrast barium enema, revealing additional mucosal detail, with multiple irregular sessile and polypoid masses.

 

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