GI Radiology > Small Bowel > Disease Patterns > Diffuse Separation of Loops

Disease Patterns

Diffuse Separation of loops (without tethering)

Extrinsic process

  • Mucosal sparing
  • Radiographic Signs of Extrinsic Process

        Mass effect - constant or inconstant

        Luminal constriction (with intact mucosa)

        Fixation and angulation of bowel loops

        Fixation and angulation of folds

         “Traction change”

         “Transverse stretch”

  • Signs of advanced disease

        Obstruction

        Wall invasion with ulceration

        Fistula

  • Examples

        Hypertrophied mesenteric fat

        Ascites

        Mesenteric or retroperitoneal lymphadenopathy

         Lymphoma

         Whipples’s disease

         AIDS-related

         Pimary mesenteric tumors

 

Spontaneous mesenteric hematoma causing separation of loops.  Arrows (above) and “H” (below) delineate the extrinsic mass.

 

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