Mesenteric neurilemmoma is extremely rare. We present a case of a 45-year-old man with mesenteric neurilemmoma, with CT, MRI and angiographic findings. The patient was healthy and had had no symptoms previously. CT and MRI images revealed a 2.2-cm well-defined, soft-tissue mass adjacent to the posterior border of the left lobe of the liver. The tumor mass displayed a heterogenous low signal on T2-weighted image and peripheral enhancement after gadolinium administration. Angiography showed a hypervascular mass beneath the tail of pancreas, which was supplied by small branches of middle splenic artery. Histopathology revealed a mesentery neurilemmoma composed of spindle tumor cells.
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