Congenital Malformations of the Female Genital Tract: a Review of Available Classification Systems

Pereira Amaral, P; Ambrósio, P; Coelho, A; Condeço, R; Bello, A; Djokovic, D

http://hdl.handle.net/10400.17/4629

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Abstract(s)

Congenital malformations of the female genital tract are being diagnosed more frequently due to advances in imaging techniques. A broad international consensus on their classification is still lacking. This paper aimed to comparatively summarize the most frequently and widely used, as well as the most recently developed classification systems of congenital female genital malformations. A non-systematic review was done through a search on major databases with the medical subject heading (MeSH) term ‘‘congenital abnormalities” in combination with ‘‘classification” and ‘‘female genitalia”. All available systems, including, among others, the American Fertility Society Classification (1988), the Acien and Acien classification (1992, 2004), the VCUAM system (2005), the European Society for Human Reproduction and Embryology - European Society for Gynecological Endoscopy classification (2013), the Congenital Uterine Malformation Experts (CUME) group recommendations, and the American Society for Reproductive Medicine Classification (2021) possess the advantages and disadvantages listed in this article. Regarding the most common situations, the criteria for differentiating physiologic arcuate and discrete partial septate uteri vary widely between classifications, while difficulties also persist with the rarer complex abnormalities that cannot be easily classified, contributing to a gap in clinical and research protocols. The main factor compromising any attempt to reach an ideal classification system is the lack of evidence-based data, justifying the need for comparative multicenter international randomized control trials in this field. Pending new research data and a broad international consensus, it seems essential for adequate patient orientation to describe each detected malformation in detail and to correlate it with the clinical presentation, regardless the type of classification used.