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Intravascular Papillary Endothelial Hyperplasia (Masson's Tumor) Within Cauda Equina
Masahiro Tanaka1, Akihiko Hiyama1, Daisuke Sakai1
1Department of Orthopaedic Surgery, Tokai University School of Medicine, Kanagawa, Japan.
Summary
This case report details a rare instance of intravascular papillary endothelial hyperplasia (IPEH), also known as Masson's tumor, within the cauda equina. Surgical removal of this intradural lesion successfully resolved patient symptoms and improved quality of life.
Area of Science:
- Neurology
- Oncology
- Pathology
Background:
- Intravascular papillary endothelial hyperplasia (IPEH), or Masson's tumor, is a rare vascular lesion.
- No previous reports document IPEH occurring within the cauda equina.
Observation:
- A 40-year-old male presented with chronic low back and leg pain, indicative of cauda equina syndrome.
- MRI revealed an intradural mass at L2-L3; myelography suggested a metastatic lesion, but systemic workup was negative.
- Surgical intervention was performed for diagnosis and treatment of the cauda equina lesion.
Findings:
- Histopathological examination confirmed the excised tumor as intravascular papillary endothelial hyperplasia (IPEH).
- Postoperative recovery was successful, with significant improvement in the patient's symptoms and quality of life.
- No recurrence of the IPEH lesion was observed during follow-up.
Implications:
- This case represents the first documented instance of IPEH presenting as an intradural lesion within the cauda equina.
- Highlights the importance of considering rare vascular tumors in the differential diagnosis of cauda equina syndrome.
- Demonstrates the efficacy of surgical management for IPEH in this location.