Diagnosis and laparoscopic excision of accessory cavitated uterine mass in a young woman: A case report

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AI-generated summary by claude@2026-06, 2026-06-10

This case report describes a 22-year-old woman with severe dysmenorrhea diagnosed with accessory cavitated uterine mass after laparoscopic excision and histopathological examination.

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Abstract

BACKGROUND: Accessory and cavitated uterine mass (ACUM) is an uncommon form of connate Müllerian anomaly seen in young and nulliparous women, which presents as chronic periodic pelvic pain and severe dysmenorrhea. The entity is often underdiagnosed due to a broad differential diagnosis, including rudimentary uterine horn, true cavitated adenomyosis and degenerating fibroids. CASE SUMMARY: A 22-year-old woman who presented with severe dysmenorrhea and was initially misdiagnosed with cystic adenomyosis. Gynecological examination and ultrasonography were performed. The patient underwent laparoscopic excision of the mass and histopathological examination confirmed the diagnosis. Postoperatively, the patient did well, with no further dysmenorrhea. CONCLUSION: ACUM is difficult to diagnose. A correct diagnosis can be made only after excision and histopathological evaluation. Surgical excision is necessary and can be carried out by laparoscopy.

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adenomyosisdysmenorrhea

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europepmc
last seen: 2026-06-04T01:30:01.192114+00:00
openalex
last seen: 2026-06-04T00:00:01.174412+00:00
pubmed
last seen: 2026-05-13T22:24:08.918168+00:00
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