MPNST : Cytologic Features

Comments:
Malignant peripheral nerve sheath tumor (MPNST) is a highly cellular neoplasm resembling fibrosarcoma and is composed of monomorphic spindle cells arranged in interlacing fascicles, palisades, and whorls. The cells have comma-shaped, wavy or buckled hyperchromatic nuclei and indistinct pale or eosinophilic cytoplasm. Some cases have plump oval or rounded nuclei (as shown here).