title: Cystic lymphangiomas of the cauda equina.
abstract: BACKGROUND
  Lymphangiomas, benign hamartomatous lesions of the lymph tissue, result from a failure of lymph channels to communicate with the venous system or normal lymph channels. Previously, two reports described lymphangiomas arising in the peripheral nerve (ulnar nerve and posterior tibial nerve).
  
  
  OBJECTIVE
  To report a rare case of cystic lymphangiomas of the cauda equina not previously reported.
  
  
  METHODS
  Case report.
  
  
  METHODS
  A 56-year-old Japanese man.
  
  
  METHODS
  Not applicable.
  
  
  RESULTS
  The patient recovered from most of his symptoms after tumor extirpation. He had no symptoms at a 5.8-year follow-up.
  
  
  CONCLUSIONS
  We believe this is the first case report of lymphangiomas originating from the cauda equina, which was effectively treated by surgery.
authors.affiliation: Department of Orthopaedic Surgery, Toyama Medical and Pharmaceutical University, 2630 Sugitani, Toyama 930-0194, Japan. kanamori@ms.toyama-mpu.ac.jp
authors.forename: M
authors.initials: M
authors.lastname: Kanamori
mesh_terms: D002420:Cauda Equina / Q000473:pathology* / Q000601:surgery; D018572:Disease-Free Survival; D006801:Humans; D018191:Lymphangioma, Cystic / Q000473:pathology* / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010524:Peripheral Nervous System Neoplasms / Q000473:pathology* / Q000601:surgery