Schwannoma
Schwannomas are nerve sheath tumors. They are lobulated, grossly encapsulated tumors that often show cystic degeneration, hemorrhage and xanthomatous changes. Schwannomas arise eccentrically from their parent nerve. There is a slight female predominance and they are primarily seen in middle-aged adults. Most Schwannomas arise from dorsal sensory roots. They almost never become malignant.
| Location : | -
intradural extramedullary - combined intradural and extradural - extradural - intramedullary |
70% 15% 15% <1% |
| Pathology : | -
Antoni type A: densely packed, highly ordered spindle cells - Antoni type B: loosely textured myxoid stroma |
| Therapy : | treatment is surgical excision, which is usually curative. Postoperative radiotherapy may be considered for malignant Schwannomas |
| * Click to view The Case Presentations | |
| Extradural Lumbar Schwannoma- | Intradural Cervical Schwannoma- |
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