PMC4873568_01
CT scan & intra operative photograph showing tumor (arrow) posterior to stomach (cross) but anterior to pancreas (star), kidneys and vessels.
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PMC4873568_01_gr1.jpg
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MRI/CT scan showed a large 30 x 23 x 13 cm lobulated mass in the retroperitonium with predominant intermediate signals and multifocal areas of fat intensity on T1 images (Fig. 1). A large well encapsulated, multi lobulated mass arising posterior to stomach but anterior to pancreas and displacing left kidney, spleen and bowels was encountered (Fig. 1).
Showing bimorphic pattern - lipid areas (red diamond) & myxoid regions (black star).
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PMC4873568_01_gr2.jpg
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Post operative histopathological examination confirmed liposarcoma-myxoid variant (Fig. 2).
IHC studies showing S-100 (left) & Vimentin (right) positivity.
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PMC4873568_01_gr3.jpg
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IHC studies showed the tumor to be S100 and vimentin positive (Fig. 3) but desmin negative.