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Classification

Authoring team

The majority of leiomyomas arise in the body of the uterus and are described according to their anatomic location:

  • intramural - 70%
  • subserous - 10%
  • submucosal - 10%

Less commonly, they arise in the cervix, between the leaves of the broad ligaments, and in the various supporting ligaments of the uterus.

A newer and more detailed leiomyoma subclassification system has been introduced by the International Federation of Gynaecology and Obstetrics (FIGO) (1).

Reference

  1. Munro MG, Critchley HOD, Fraser IS; FIGO Menstrual Disorders Committee. The two FIGO systems for normal and abnormal uterine bleeding symptoms and classification of causes of abnormal uterine bleeding in the reproductive years: 2018 revisions. Int J Gynaecol Obstet. 2018 Dec;143(3):393-408

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