Histologically proven can of abdominal nerve sheath tumors (Schwannoma).
Biopsy was obtained from the epigastric mass with the microscopic picture 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