title: Pelvic mass associated with raised CA 125 for benign condition: a case report.
abstract: BACKGROUND
  Raised CA 125 with associated pelvic mass is highly suggestive of ovarian malignancy, but there are various other benign conditions that can be associated with pelvic mass and a raised CA 125.
  
  
  METHODS
  We present a case of 19 year old, Caucasian British woman who presented initially with sudden onset right sided iliac fossa pain and on imaging was found to have 9.8 x 4.5 cm complex cystic mass in right adnexa with a raised CA 125 of 657, which was initially thought to be highly suspicious of cancer but was subsequently found to be due to pelvic inflammatory disease on histology.
  
  
  CONCLUSIONS
  This case highlights the fact that though a pelvic mass with raised CA 125 is highly suggestive of malignancy, pelvic inflammatory disease should always be considered as a differential diagnosis especially in a young patient and a thorough sexual history and screening for pelvic infection should always be carried out in these patients.
authors.affiliation: Department of Obstetrics and Gynaecology, Royal Derby Hospital, Uttoxeter road, Derby DE22 3NE, UK. Viren.Asher@nottingham.ac.uk
authors.forename: Viren
authors.initials: V
authors.lastname: Asher
authors.forename: Robert
authors.initials: R
authors.lastname: Hammond
authors.forename: Tim J
authors.initials: TJ
authors.lastname: Duncan
mesh_terms: D000328:Adult; D018394:CA-125 Antigen / Q000097:blood*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D010048:Ovarian Cysts / Q000097:blood* / Q000473:pathology / Q000601:surgery; D010051:Ovarian Neoplasms / Q000097:blood* / Q000473:pathology / Q000601:surgery; D000292:Pelvic Inflammatory Disease / Q000097:blood* / Q000473:pathology* / Q000601:surgery; D013724:Teratoma / Q000097:blood* / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed; D055815:Young Adult
chemical_list: D018394:CA-125 Antigen
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