Accessory Cavitated Uterine Mass
Accessory cavitated uterine mass (ACUM) is a rare obstructive malformation causing dysmenorrhea, diagnosed by imaging and relieved by resection.
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This paper describes the rare obstructive Müllerian anomaly “accessory cavitated uterine mass” (ACUM), focusing on its definition, location under the round ligament with an endometrium-lined cavity filled with blood, and associated clinical presentation of progressive dysmenorrhea. It reports that diagnosis can be made using pelvic MRI and transvaginal ultrasonography, with the uterine cavity, fallopian tubes, and ovaries otherwise normal; a specific limitation noted is that only small foci of adenomyosis may be present adjacent to the ACUM in the myometrium, not throughout the uterus. The paper states that complete resection of the mass can fully relieve dysmenorrhea. Relevance to endometriosis: the paper discusses the presence of small foci of adenomyosis adjacent to the ACUM (i.e., uterine endometrial-tissue disorder), though it is primarily about ACUM as an obstructive Müllerian malformation.
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References (7)
- Accessory cavitated uterine mass: MRI features and surgical correlations of a rare but under-recognised entity via openalex
- Imaging Manifestations of Accessory Cavitated Uterine Mass—A Rare Mullerian Anomaly via openalex
- W2155864999 via openalex
- W2059848946 via openalex
- W3158573491 via openalex
- W2334485457 via openalex
- W2132970488 via openalex
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- last seen: 2026-06-04T00:00:01.174412+00:00