We report a rare case of pseudomyxoma peritonei (PMP) originating from right ovarian borderline mucinous tumor in a 79-year-old Chinese female. The patient came to our hospital with complaints of abdominal distention. Ultrasonography (US) showed the jelly-like ascites accumulated in the middle abdomen and pelvic cavity within an internal stripe-like echo. https://lecoureures.shop/product-category/plein-air-accessoires/