title: Cirsoid aneurysm treatment by percutaneous injection of sodium tetradecyl sulfate.
abstract: BACKGROUND
  Cirsoid aneurysms are uncommon arteriovenous fistulas of the scalp. Surgery for these lesions can be difficult; transarterial embolization is rarely curative, while embolization of the venous pouch with permanent agents usually necessitates subsequent surgical removal of the embolic material. The ideal embolic agent would be one that is safe and effective, commercially available, and would not require subsequent removal.
  
  
  METHODS
  We treated an arteriovenous fistula of the scalp with direct puncture and injection of sodium tetradecyl sulfate, a commercially available sclerosing agent.
  
  
  RESULTS
  Control angiography immediately following percutaneous injection of sotradecol into the fistula showed decreased flow but not complete closure of the lesion. However, within several days of the embolization, the patient's scalp pain and mass resolved. Four months after embolization, MRA demonstrated no evidence of residual or recurrent fistula. Color doppler flow imaging demonstrated only slightly decreased vascular resistance in the distal superficial temporal artery, possibly indirect evidence of persistent micro-fistulae. Twenty-three months after the procedure, the patient continued to be asymptomatic and had no palpable lesion.
  
  
  CONCLUSIONS
  Percutaneous injection of sotradecol can be considered as one of the treatment options for arteriovenous fistula of the scalp. Further experience is needed to compare the safety and effectiveness of sotradecol with other agents currently used in the treatment of scalp arteriovenous fistulae.
authors.affiliation: Department of Radiology, Medical College of Wisconsin, Milwaukee 53226, USA.
authors.forename: L E
authors.initials: LE
authors.lastname: Hendrix
authors.forename: G A
authors.initials: GA
authors.lastname: Meyer
authors.forename: S J
authors.initials: SJ
authors.lastname: Erickson
mesh_terms: D000328:Adult; D001164:Arteriovenous Fistula / Q000628:therapy*; D016461:Chemoembolization, Therapeutic / Q000379:methods*; D006801:Humans; D007279:Injections, Subcutaneous; D008297:Male; D012535:Scalp / Q000098:blood supply*; D012597:Sclerosing Solutions / Q000008:administration & dosage*; D012981:Sodium Tetradecyl Sulfate / Q000008:administration & dosage*
chemical_list: D012597:Sclerosing Solutions; D012981:Sodium Tetradecyl Sulfate