title: Huge pyogenic cervical cyst with endometriosis, developing 13 years after myomectomy at the lower uterine segment: a case report.
abstract: BACKGROUND
  Surgical site infections are potential complications following open myomectomy. These infections usually develop immediately after the surgery, and are most often located in the myometrium. Pyogenic cervical cysts are rare and have not been previously reported to occur at the site of myomectomy.
  
  
  METHODS
  A 41-year-old nulligravida Japanese woman was referred to our hospital with a large cervical cyst (>15 cm in diameter). She had undergone a myomectomy 13 years previously, and the surgical site had extended to the endocervical gland. Standard blood tests did not show any evidence of inflammation. The patient underwent a total abdominal hysterectomy, which revealed that the cyst contained multiple components, including Escherichia coli, old blood, and evidence of endometriosis. A pathological review did not show malignant cells within the cyst. The pyogenic cyst originated from the upper anterior cervix, which was one of the sites involved in the previous myomectomy.
  
  
  CONCLUSIONS
  We reported a huge pyogenic cervical cyst exhibiting signs of endometriosis, in the vicinity of the uterine scar from the open myomectomy. The previous surgery and endometriosis might have contributed to the formation of this rare pyogenic cyst.
authors.affiliation: Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan. katsutoshi-tky@umin.ac.jp.
authors.forename: Katsutoshi
authors.initials: K
authors.lastname: Oda
authors.forename: Yuji
authors.initials: Y
authors.lastname: Ikeda
authors.forename: Daichi
authors.initials: D
authors.lastname: Maeda
authors.forename: Takahide
authors.initials: T
authors.lastname: Arimoto
authors.forename: Kei
authors.initials: K
authors.lastname: Kawana
authors.forename: Masashi
authors.initials: M
authors.lastname: Fukayama
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Osuga
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Fujii
mesh_terms: D000038:Abscess / Q000150:complications*; D000328:Adult; D003560:Cysts / Q000175:diagnosis*; D004715:Endometriosis / Q000150:complications*; D005260:Female; D006801:Humans; D018231:Leiomyomatosis / Q000601:surgery*; D011183:Postoperative Complications; D002577:Uterine Cervical Diseases / Q000150:complications*; D063186:Uterine Myomectomy; D014594:Uterine Neoplasms / Q000601:surgery*