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CT Evaluation of Mesenteric Panniculitis

Prevalence and Associated Diseases

M. Daskalogiannaki1, A. Voloudaki1, P. Prassopoulos1, E. Magkanas1, K. Stefanaki2, E. Apostolaki1 and N. Gourtsoyiannis1

1 Department of Radiology, University Hospital of Heraklion, 711 10 Stavrakia Heraklion, Crete, Greece.
2 Department of Pathology, University Hospital of Heraklion, Crete, Greece.



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  		Fig. 1. —74-year-old woman with primary nasal melanoma without any other sites of involvement. Contrast-enhanced CT scan shows mesenteric panniculitis as well-circumscribed, inhomogeneous fatty mass (arrows) displaying higher attenuation than normal retroperitoneal fat. Mass extends from mesenteric root toward left abdomen and surrounds mesenteric vessels.

 


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  		Fig. 2. —66-year-old man with liver echinococcus. Contrast-enhanced CT scan shows mesenteric panniculitis directed to right of midline, accompanying right-sided proximal jejunum. Note smooth displacement in adjacent opacified intestinal loop (arrow).

 


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  		Fig. 3. —65-year-old woman with carcinoma of rectum. Contrast-enhanced CT scan shows hyperdense stripe (arrows) delineating anterior surface of mesenteric panniculitis. Note anterior depression (arrowhead) giving process lobulated configuration.

 


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  		Fig. 4. —50-year-old man who presented with low-grade fever. Contrast-enhanced CT scan shows small, circumscribed, soft-tissue nodules (arrows) scattered within well-encapsulated fatty mass of mesenteric panniculitis.

 


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  		Fig. 5. —58-year-old man with lung carcinoma. Contrast-enhanced CT scan shows mesenteric panniculitis as scattered, discrete nodules of soft-tissue density, engulfed by hypodense fatty halo (arrows).

 


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  		Fig. 6A. —67-year-old woman with abdominal pain. Contrast-enhanced CT scan shows mesenteric vessels enveloped by mesenteric panniculitis and surrounded by hypodense fatty halo (arrows).

 


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  		Fig. 7. —67-year-old woman with systemic lupus erythematosus. Contrast-enhanced CT scan shows mesenteric vessels surrounded by mesenteric panniculitis. Despite crowding, no distortion is seen.

 


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  		Fig. 6B. —67-year-old woman with abdominal pain. Microscopic section shows infiltration of fatty tissue by abundant lipid-laden macrophages and presence of fibrous septa. (H and E, x200)

 


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  		Fig. 6C. —67-year-old woman with abdominal pain. Microscopic section reveals focal aggregate of small lymphocytes (arrow). (H and E, x200)

 

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