Giant erosive spinal schwannomas can be distinguished from other spinal schwannomas by their growth in myofascial planes and vertebral body erosion. Therapeutic radical tumor excision without neurologic deterioration is possible in the management. Prognosis is good after total tumor removal. This article is aimed to report six patients who were diagnosed with giant erosive spinal schwannomas between 2001 and 2004 according to the criteria of Sridhar et al. Three of the patients were male, and three female with the age range of 16–63 (mean age 39.7). Three of the tumors were located in the cervical region, one in the lumbar region, one in the thoracic area, and one in the sacral region. 

Total excision of the tumors was achieved in four patients. However, one additional operation was in the requirement for two patients. Follow-up periods ranged from 6 weeks to 7 years. Four patients had an excellent clinical outcome, and there were no radiologic signs of instability or recurrence. As per the doctors’ experiences and other published literature, giant erosive spinal schwannoma has significant features like local invasive nature together with vertebral body erosion and large size but benign histology, common preoperative misdiagnosis, and good prognosis after total excision. That made the doctors come to this conclusion.

Ref: https://www.tandfonline.com/doi/full/10.3109/02688697.2010.487129

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