Neurilemmoma

**Definition:** A neoplasm that arises from SCHWANN CELLS of the cranial, peripheral, and autonomic nerves. Clinically, these tumors may present as a cranial neuropathy, abdominal or soft tissue mass, intracranial lesion, or with spinal cord compression. Histologically, these tumors are encapsulated, highly vascular, and composed of a homogenous pattern of biphasic fusiform-shaped cells that may have a palisaded appearance. (From DeVita Jr et al., Cancer: Principles and Practice of Oncology, 5th ed, pp964-5)

**Tree numbers:** - C04.557.465.625.650.595 - C04.557.580.600.610.595 - C04.557.580.625.650.595

**Synonyms:** - Neurinoma - Schwannoma - Neurilemoma