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The Kasai operation was associated with poor outcomes in AGS patients. It remains unclear if the Kasai operation directly deteriorates liver and patient outcomes in AGS patients.

A 63-year-old woman was admitted to hospital with pain in the right lower quadrant. Abdominal computed tomography (CT) revealed a 60-mm cystic mass at a site corresponding to the appendix. The mass wall on the appendicular ostium was thickened and enhanced by contrast, while calcification was observed in the mass wall on the appendicular tip. No projection was observed in the mass cavity. On abdominal ultrasonography (US), the mass wall on the appendicular ostium was thickened and projections were observed at two sites in the mass cavity. On contrast-enhanced US (CEUS), only one of these projections was enhanced. Based on the thickened and contrast-enhanced wall of the mass on the appendicular ostium on CT and US, as well as the contrast enhancement of a projection on US, the mass was diagnosed as mucinous cystadenocarcinoma of the appendix. Ileocecal resection was subsequently performed on day 10. A detailed examination of the surgical specimen revealed carcinoma cells in the mass wall on the appendicular ostium. The contrast-enhanced projection was identified as granulation tissue that had grown to come into contact with the tumor, while the non-contrast-enhanced projection was identified as solidified mucus. US enabled successful visualization of projections in the mass cavity that were not visible on abdominal CT. CEUS also proved useful for assessing blood flow in these projections.

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Background Hemorrhoids are an extremely rare condition in children, and data on its incidence and treatment in the pediatric population remains scarce. We retrospectively reviewed children who underwent sclerotherapy for internal hemorrhoids, and analyzed patients' characteristics and outcomes. Methods A total of 14 pediatric patients who underwent sclerotherapy were included. Patients' ages and the required amount of polidocanol, depending on the grade of hemorrhoids, and the correlation between age and volume of sclerosant, were statistically analyzed. Results Patients had a male predominance with a ratio of 2.5:1 (grade 2:6 patients, grade 3:8 patients). Four children had underlying conditions including portal hypertension and Klippel–Trenaunay syndrome. Of the 14 patients, 43% had constipation requiring medication or enema. Only one minor complication, a perianal ulceration, was found to be associated with sclerotherapy. Patients with grade 3 hemorrhoids required a significantly larger amount of polidocanol than those with grade 2 hemorrhoids. Two patients with grade 3 hemorrhoids required a second session of treatment for recurrence. The success rate of sclerotherapy with polidocanol was 86%. Conclusions Sclerotherapy with polidocanol is a safe, effective, and less invasive treatment option for internal hemorrhoids in children. Further studies are needed to investigate this treatment approach.