title: [A woman with a painful swelling in the groin: the cyst of Nuck, a forgotten diagnosis].
abstract: BACKGROUND
  The cyst of Nuck is a swelling in the inguinal canal caused by a hydrocele of the round ligament. This abnormality is a result of the absence or incomplete obliteration of the processus vaginalis during foetal development.
  
  
  METHODS
  A 44-year-old woman had suffered from a painful swelling in her right groin for 4 years. Extensive imaging and multiple punctures of the supposed cyst had no lasting results. Eventually, the swelling was identified as a cyst of Nuck, which was confirmed on operative exploration. After excision, the patient was relieved of all her symptoms.
  
  
  CONCLUSIONS
  The cyst of Nuck is a clinical diagnosis. Imaging the swelling may give a misleading result and cause a delay in treatment.
authors.affiliation: Martini Ziekenhuis, afd. Chirurgie, Groningen.
authors.forename: Riquard L
authors.initials: RL
authors.lastname: Hensgens
authors.forename: Jan-Kees
authors.initials: JK
authors.lastname: Breek
mesh_terms: D000328:Adult; D003560:Cysts / Q000175:diagnosis* / Q000601:surgery; D004487:Edema; D005260:Female; D006119:Groin; D006801:Humans; D007264:Inguinal Canal / Q000473:pathology*; D008297:Male; D010146:Pain