title: Cystic uterine tumors.
abstract: OBJECTIVE
  The differential diagnosis of cystic uterine tumors includes fibroids showing cystic degeneration, cystic adenomyomas, congenital cysts, and developmental anomalies.
  
  
  METHODS
  The incidence, clinical presentation and accuracy in preoperative diagnosis of cystic uterine tumors were studied in a university hospital population over a 6-year period.
  
  
  RESULTS
  29 cases were included. Of these, 8 corresponded to the diagnosis of a non-fibroid uterine cystic enlargement, and 21 to that of a fibroid with cystic degeneration. Age and parity were significantly lower in patients with non-fibroid cysts. Rates of symptomatic women (60 vs. 55.6%) were similar in both groups. The preoperative diagnosis was accurate in 20/21 (95.2%) cases with a degenerated leiomyoma. On the contrary, in 6/8 (75%) cases with a non-fibroid cystic swelling an erroneous diagnosis of an adnexal or an extrauterine mass was made preoperatively. In this group, histology of the tumor showed a cystic adenomyoma in 3, a congenital cyst in 3, and a blind rudimentary uterine horn in 2 cases, respectively.
  
  
  CONCLUSIONS
  Uterine cystic tumors are uncommon. Frequently, non-fibroid swellings are erroneously diagnosed as adnexal enlargements and their true origin only becomes evident during surgery.
authors.affiliation: First Department of Obstetrics and Gynecology of the University of Athens, Athens, Greece. protom@aias.gr
authors.forename: Athanasios
authors.initials: A
authors.lastname: Protopapas
authors.forename: Spyros
authors.initials: S
authors.lastname: Milingos
authors.forename: Sophia
authors.initials: S
authors.lastname: Markaki
authors.forename: Dimitrios
authors.initials: D
authors.lastname: Loutradis
authors.forename: Dimitrios
authors.initials: D
authors.lastname: Haidopoulos
authors.forename: Maria
authors.initials: M
authors.lastname: Sotiropoulou
authors.forename: Aris
authors.initials: A
authors.lastname: Antsaklis
mesh_terms: D018194:Adenomyoma / Q000175:diagnosis* / Q000453:epidemiology; D000328:Adult; D020420:Cyst Fluid; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D015994:Incidence; D007889:Leiomyoma / Q000175:diagnosis* / Q000453:epidemiology; D008875:Middle Aged; D011300:Preoperative Care; D012189:Retrospective Studies; D014594:Uterine Neoplasms / Q000175:diagnosis* / Q000453:epidemiology