Rectosigmoid solitary juvenile polyps are benign lesions, relatively frequent in childhood. The clinical debut of a pediatric polyp with bleeding is relatively frequent, but there are very few reports of rectal prolapse of polyps. We present the case of a 7-year-old female patient with no previous history who presented with rectal prolapse of a polyp with acute bleeding. An urgent endoscopic examination was performed and 2 rectosigmoid polypoid lesions were found and resected. The anatomopathological study showed that these were 2 hamartomatous polyps with mild dysplasia. The patient is asymptomatic and is being followed up. The literature concerning rectal prolapse of polyps in the pediatric population is scarce. In a pediatric patient with a rectal prolapse, this entity should be considered in the differential diagnosis.

中文翻译：

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伴有直肠脱垂和急性出血的儿童直肠乙状结肠非典型幼年性息肉：病例报告和综合文献综述

直肠乙状结肠孤立性幼年息肉是良性病变，在儿童时期相对常见。小儿息肉临床首次出现出血的情况相对较多，但息肉直肠脱垂的报道很少。我们介绍了一名 7 岁女性患者，既往无病史，因息肉直肠脱垂并伴有急性出血而就诊。紧急进行内镜检查，发现2个直肠乙状结肠息肉样病变并切除。解剖病理学研究表明，这是2个具有轻度不典型增生的错构瘤性息肉。该患者无症状，正在接受随访。关于儿科人群息肉直肠脱垂的文献很少。对于患有直肠脱垂的儿科患者，鉴别诊断中应考虑该实体。