PMC6154433_01
CT images demonstrating interval increase in size from 2010 (Left) to 2017 (Right) of large, low-attenuation gastric mass.
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The mass measured predominately fat density with surrounding fat stranding and a posterior ill-defined soft tissue component [Fig. 1].
EGD image from 2017.
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However, stigmata of recent bleeding (ulcer) was found in the fundus [Fig. 2].
A. Eversion of gastric mass through gastrotomy. B. Excised gastric mass.
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The tumor was soft and fleshy, measuring approximately 12 cm in its greatest dimension [Fig. 3A,B].
A. Submucosal gastric lipoma (H&E stain, 100x). B. Adipocytes without cytology atypia, necrosis or increased mitotic activity (Left, H&E, 400x). Adipocytes negative for MDM2 (Right, Immunostain, 200x).
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Immunohistochemical stain for MDM2 was negative [Fig. 4B].