What question did this study set out to answer?

To present a case of rectal PEComa diagnosed using endoscopic techniques.

January 14, 2026ACG Case Reports JournalOpen Access

Rectal PEComa Mimicking Gastrointestinal Stromal Tumor on Endoscopic Ultrasound

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To present a case of rectal PEComa diagnosed using endoscopic techniques.
Endoscopic ultrasound was used for imaging a rectal mass.
Fine-needle aspiration and endoscopic tunnel biopsies confirmed the diagnosis.
Neoadjuvant sirolimus was administered before surgery.
A 66-year-old woman had a 7.4 cm rectal mass initially mistaken for gastrointestinal stromal tumor.
Endoscopic techniques allowed for preoperative diagnosis of PEComa.
The patient underwent surgical resection and partial hepatectomy for liver metastasis.

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Implication

Case report demonstrates that endoscopic ultrasound facilitates early diagnosis of perivascular epithelioid cell tumors, implying timely surgical intervention may be effective.

Cite This Study

Zlatanic et al. (2026) studied this question.

synapsesocial.com/papers/6966e71813bf7a6f02bff664 https://doi.org/10.14309/crj.0000000000001958

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Implication

Case report demonstrates that endoscopic ultrasound facilitates early diagnosis of perivascular epithelioid cell tumors, implying timely surgical intervention may be effective.

Rectal PEComa Mimicking Gastrointestinal Stromal Tumor on Endoscopic Ultrasound

Key Points

Discussion

Implication

Cite This Study

Rectal PEComa Mimicking Gastrointestinal Stromal Tumor on Endoscopic Ultrasound

Key Points

Discussion

Implication

Cite This Study

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