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Plexiform (multinodular) schwannoma. A tumor simulating the plexiform neurofibroma
The American Journal of Surgical Pathology
|October 1, 1983
Summary
This study details a rare schwannoma variant with multinodular growth that resembles plexiform neurofibroma. Despite two recurrences, the patient remains well with no signs of metastasis.
Area of Science:
- Neurosurgery
- Oncology
- Pathology
Background:
- Schwannomas are nerve sheath tumors.
- Plexiform neurofibromas are benign nerve sheath tumors often associated with neurofibromatosis.
- Distinguishing rare schwannoma variants from similar pathologies is crucial for accurate diagnosis and treatment.
Observation:
- A rare schwannoma variant presented with an interconnecting multinodular growth pattern.
- This growth pattern mimicked the appearance of a plexiform neurofibroma on initial examination.
- The schwannoma exhibited recurrence twice after initial surgical excision.
Findings:
- The second recurrence of the schwannoma was managed conservatively (not excised).
- The non-excised recurrence showed no increase in size over a 1.5-year follow-up period.
- The patient is alive and well over 3 years post-initial surgery with no evidence of metastatic disease.
Implications:
- This case highlights the importance of recognizing rare schwannoma variants.
- Conservative management may be a viable option for recurrent schwannomas with specific growth patterns.
- Understanding the behavior of such variants can inform clinical decision-making and patient management strategies.