Malignant transformation of rectal endometriosis: Preoperative diagnosis by endorectal ultrasound guided biopsy

Zhuo‐hua Liang, Wen-Jie Cheng, Wenjie Cheng, Yiming Liu, Feng Zhang, Shu‐ting Chen, Shu-Ting Chen, Jie Zhou, Guangjian Liu
Journal of clinical ultrasound : JCU · 2022 · vol. 51(3) , pp. 479–484 · doi:10.1002/jcu.23407 · PMID:36444829 · W4310240487
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⚙ AI-generated summary by claude@2026-06, 2026-06-08 ⓘ

Endorectal ultrasound-guided biopsy successfully diagnosed malignant transformation of rectal endometriosis, particularly in cases where routine colonoscopic biopsies were negative.

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Abstract

The prevalence of malignant transformation of endometriotic lesions is estimated between 0.3% and 1%. Malignant transformations of endometriosis occur in the colorectum is rarer, accounting for 0.25%. Because the malignant transformation of colorectal endometriosis rarely involves mucosa, it is difficult to obtain abnormal tissue by routine endoscopic biopsy. In this case, we evaluated a patient with a rectal mass by endorectal ultrasound (ERUS) and performed endorectal ultrasound-guided biopsy (EGB). Malignant transformations of endometriosis were confirmed by histological result. For patients with rectal tumors but with negative findings on colonoscopy and biopsy, ERUS and EGB contribute to preoperative diagnosis.

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis

Citation neighborhood

Papers in the corpus that this work cites (lower rings, blue) and that cite this one (upper rings, green). Dot size scales with the paper's in-corpus citation count — bigger dot = more influential within the endo/adeno field. Click a dot to open that paper. [ expand to 2 hops ] — adds papers reached through this work's immediate citers/citees. Heavier; up to 60 extra dots.

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europepmc
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