title: Rapidly expanding thenar eminence ganglion: a case report.
abstract: BACKGROUND
  This study documents the first reported case of a rapidly growing (volar) thenar eminence ganglion arising form the first carpometacarpal joint, masquerading as a sarcoma. The discussion informs the hand surgeon on the evidence regarding the unusual presenting features.
  
  
  METHODS
  An 85 year old left hand dominant female presented with a six week history of rapidly growing lump on the thenar eminence. Clinical examination revealed a non-tender large lobulated mobile swelling measuring 5 x 4 cm and involving the whole thenar eminence.
  
  
  CONCLUSIONS
  Ganglia may present from the thenar eminence and are a source of diagnostic confusion.
authors.affiliation: Department of Plastic Reconstructive and Aesthetic Surgery, Wexham Park Hospital, Slough, UK. ernest_azzopardi@yahoo.co.uk
authors.forename: E A
authors.initials: EA
authors.lastname: Azzopardi
authors.forename: S
authors.initials: S
authors.lastname: Gujral
authors.forename: A
authors.initials: A
authors.lastname: Mandal
authors.forename: M
authors.initials: M
authors.lastname: Kulkarni