title: Clinicopathologic evaluation of myofibroblastoma: A study in two hospitals.
abstract: OBJECTIVE
  To report various anatomic locations and clinical characteristics of pathologically proven myofibroblastoma in Koran patients.
  
  
  METHODS
  Pathologic reports of patients who underwent surgeries at two centers between April 2003 and March 2016 were retrieved from the electronic medical record system of the hospital. Pathologic reports were included after performing a search using the keyword "myofibroblastoma".
  
  
  RESULTS
  The cohort consisted of 11 subjects and included eight female and three male individuals. The patients' ages ranged from 9 to 66 years. Tumors were located in the vagina in three patients and presented in the breast in seven patients. One case presented with an abdominal mass. The tumors ranged in mean size from 4.0 to 53.0 mm. Despite a relatively long-term follow-up, no case had evidence of tumor recurrence.
  
  
  CONCLUSIONS
  We evaluated the various anatomic locations of pathologically proven myofibroblastoma in Korean patients. As an extremely rare tumor, physicians should pay special attention to differential diagnosis. Surgical resection is the preferred method for a cure, and the recurrence rate is extremely low.
authors.affiliation: Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea.; Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea.
authors.forename: Seul Ki
authors.initials: SK
authors.lastname: Kim
authors.affiliation: Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, Korea.
authors.forename: Ji Sun
authors.initials: JS
authors.lastname: Lee
authors.affiliation: Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, Korea.
authors.forename: Su Been
authors.initials: SB
authors.lastname: Hong
authors.affiliation: Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea.; Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea.
authors.forename: Jung Ryeol
authors.initials: JR
authors.lastname: Lee
authors.affiliation: Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea.; Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea.
authors.forename: Byung Chul
authors.identifier: 0000-0003-2289-6090
authors.initials: BC
authors.lastname: Jee
authors.affiliation: Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea.; Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea.
authors.forename: Chang Suk
authors.initials: CS
authors.lastname: Suh
authors.affiliation: Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea.; Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, Korea.
authors.forename: Seok Hyun
authors.initials: SH
authors.lastname: Kim
keywords: Anatomic variation; Breast; Genital tract; Neoplasms, muscle tissue