Presented with an abdominal mass discovered on ultrasound.
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Multiple solid fusiform masses along the distribution of nerves infiltrating throughout the hepatic hilum, small bowel mesentery and greater omentum. They are seen showing homogeneous low attenuation.
Histologically proven case of abdominal nerve sheath tumors (Schwannoma).
Biopsy as obtained from the epigastric mass with the histology showing:
- fragments of pseudocapsulated bland looking proliferated spindle cells having wavy nuclei & elongated eosinophilic cytoplasm
- focal palisading
- sections with cord-like structures proved to be nerve bundle surrounded by fibrofatty tissue entangling small nerve bundles
- no atypia or malignancy
- marker study revealed positive reaction to S-100