title: Unusual case of adenocarcinoma arising in endometriosis mimicking colorectal cancer in a young woman with a Müllerian anomaly.
abstract: OBJECTIVE
  To report a case of endometrioid adenocarcinoma that arose in endometriosis mimicking colorectal cancer in a young woman with a Müllerian anomaly.
  
  
  METHODS
  A case report.
  
  
  METHODS
  A university hospital.
  
  
  METHODS
  A 31-year-old, white nulligravida woman with a history of two previous laparoscopies for infertility and chronic pelvic pain. A solid rectosigmoid mass adherent to the left pelvic sidewall was found in this patient.
  
  
  METHODS
  The patient was subjected to an exploratory laparotomy followed by adjuvant chemotherapy.
  
  
  METHODS
  Surgical findings and histopathological observations are included in this report.
  
  
  RESULTS
  Intraoperative and histologic examinations revealed endometriosis-associated colorectal cancer.
  
  
  CONCLUSIONS
  Although a rare event, this condition should be considered in the diagnosis of women with a previous history of pelvic endometriosis, Müllerian malformation, abdominal pain, constipation, or rectal bleeding.
authors: Division of Gynecology, Obstetrics and Pathophysiology of Human Reproduction, Department of Surgery, Maternal-Fetal Medicine, and Imaging, University of Cagliari, Cagliari, Italy. michelepeiretti@hotmail.com
authors: Michele
authors: M
authors: Peiretti
authors: Konstantin
authors: K
authors: Zakashansky
authors: Gian Benedetto
authors: GB
authors: Melis
authors: Valerio
authors: V
authors: Mais
mesh_terms: D000328:Adult; D018269:Carcinoma, Endometrioid / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D017024:Chemotherapy, Adjuvant; D015179:Colorectal Neoplasms / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D004715:Endometriosis / Q000150:complications* / Q000473:pathology / Q000628:therapy; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D007044:Hysterectomy; D007081:Ileostomy; D010535:Laparoscopy; D008197:Lymph Node Excision; D009095:Mullerian Ducts / Q000002:abnormalities*; D010052:Ovariectomy; D017699:Pelvic Pain / Q000209:etiology; D016896:Treatment Outcome