title: Erythema nodosum revealing parathyroid carcinoma.
abstract: BACKGROUND
  Parathyroid carcinoma (PTC) is a rare parathyroid tumor. We report a case of PTC revealed by erythema nodosum (EN).
  
  
  METHODS
  A 53-year-old woman was admitted for EN exploration. Biology found hypercalcemia (3 mmol/L) and 184.89 ng/L parathormonemia. Histology following cervicotomy diagnosed PTC. Postoperative course was free of complications. At eight months' follow-up, there was no recurrence of EN.
  
  
  CONCLUSIONS
  PCT is rare and life threatening. Paraneoplastic EN is rare, and has not previously been reported in association with PCT. Solid neoplasia and hemopathy should be systematically explored for in case of recurrent EN or resistance to conventional treatment.
authors.affiliation: Département de médecine interne, CHU Fattouma Bourguiba, 5000 Monastir, Tunisia. hamzaoui.amira@yahoo.fr
authors.forename: A
authors.initials: A
authors.lastname: Hamzaoui
authors.forename: E
authors.initials: E
authors.lastname: Gassab
authors.forename: I
authors.initials: I
authors.lastname: Kochteli
authors.forename: L
authors.initials: L
authors.lastname: Njim
authors.forename: R
authors.initials: R
authors.lastname: Klii
authors.forename: A
authors.initials: A
authors.lastname: Zakhama
authors.forename: S
authors.initials: S
authors.lastname: Mahjoub
mesh_terms: D002277:Carcinoma / Q000175:diagnosis* / Q000601:surgery; D004893:Erythema Nodosum / Q000209:etiology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010257:Paraneoplastic Syndromes / Q000175:diagnosis / Q000209:etiology*; D010282:Parathyroid Neoplasms / Q000175:diagnosis* / Q000601:surgery