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Rectal PEComa Mimicking Gastrointestinal Stromal Tumor on Endoscopic Ultrasound

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Perivascular epithelioid cell tumors (PEComas) are rare mesenchymal neoplasms that commonly originate from the kidney, uterus, or lung, with gastrointestinal involvement being exceptionally uncommon. This case highlights the first known use of endoscopic ultra... ...