Müllerian duct anomaly classification

Last revised by Mohammad Taghi Niknejad on 6 Dec 2022

Citation, DOI, disclosures and article data

Citation:

Gaillard F, Niknejad M, Fares G, et al. Müllerian duct anomaly classification. Reference article, Radiopaedia.org (Accessed on 29 Nov 2023) https://doi.org/10.53347/rID-6322

DOI:

https://doi.org/10.53347/rID-6322

Permalink:

https://radiopaedia.org/articles/6322?iframe=true

rID:

6322

Article created:

6 Jun 2009, Frank Gaillard ◈

Disclosures:

At the time the article was created Frank Gaillard had no recorded disclosures.

View Frank Gaillard's current disclosures

Last revised:

6 Dec 2022, Mohammad Taghi Niknejad ◉

Disclosures:

At the time the article was last revised Mohammad Taghi Niknejad had no financial relationships to ineligible companies to disclose.

View Mohammad Taghi Niknejad's current disclosures

Revisions:

25 times, by 17 contributors - see full revision history and disclosures

Systems:

Gynaecology

Sections:

Classifications

Tags:

uterus

Synonyms:

Müllerian duct anomaly classification (AFS classification)
Classification of Mullerian duct anomalies
Mullerian duct anomaly classification

The Müllerian duct anomaly classification is a seven-class system that can be used to describe a number of embryonic Müllerian duct anomalies:

class I: uterine agenesis/uterine hypoplasia
- a: vaginal (uterus: normal/variety of abnormal forms)
- b: cervical
- c: fundal
- d: tubal
- e: combined
class II: unicornuate uterus/unicornis unicollis, ~15% (range 6-25%)
- a: communicating contralateral rudimentary horn contains endometrium
- b: non-communicating contralateral rudimentary horn contains endometrium
- c: contralateral horn has no endometrial cavity
- d: no horn
class III: uterus didelphys, ~7.5% (range 5-11%)
class IV: bicornuate uterus: 2nd most common type ~25% (range 10-39%)
- a: complete division, all the way down to the external os (bicornuate bicollis)
- b: partial division, not extending to the internal os (bicornuate unicollis)
class V: septate uterus: commonest anomaly, ~45% (range 34-55%)
- a: complete division, all the way down to the internal or external os
- b: incomplete division, involving the endometrial cavity but not the cervix
class VI: arcuate uterus, ~7%
class VII: in utero diethylstilbestrol (DES) exposure (T-shaped uterus)