ACUM Explained | TOG 2022 Article Discussion – Session 1 | MRCOG | MS | DNB |
Accessory Cavitated Uterine Malformation (ACUM) is an uncommon cause of severe dysmenorrhoea in young women, particularly when pain does not respond adequately to routine analgesics.

In Part 1 of this discussion of the 2022 TOG article, “ACUM — Accessory Cavitated Uterine Malformation: An Unfamiliar Cause of Dysmenorrhoea”, we explore the essential concepts needed to understand this condition.

Topics covered:

Definition, nomenclature and core features of ACUM
Typical clinical presentation in young women with severe dysmenorrhoea
Epidemiology and proposed embryological theories
Transvaginal ultrasound (TVUSS): key diagnostic features
MRI findings and their role in diagnosis
Histopathological features of ACUM

Who should watch?

MRCOG Part 1, Part 2 and Part 3 candidates
MS/DNB Obstetrics and Gynaecology residents
Postgraduate trainees preparing for examinations

This session focuses on recognising ACUM and understanding its clinical, embryological, imaging and histological features.

Part 2 covers the differential diagnosis of ACUM and treatment options in detail.

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