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Accidental foreign body ingestion by children is not exceptional and occurs in most cases in children less than 5 years old. The impact is not well known. We present the case of a 31-month-old boy affected by peritonitis caused by several bowel perforations after swallowing three magnets at different times. A single foreign body magnetic ingestion does not often cause trouble, but if the ingestions are spaced out, then consequential complications can occur. This is why, in case of stomachaches in a child less than 3 years or a child with behavior problems, it is important to perform standard abdominal X-ray examination.

Intestinal perforations in preterm newborn are characterized with high morbidity and mortality rates. They often are associated with necrotizing enterocolitis and seldom correspond to idiopathic spontaneous intestinal perforation. Perforations upstream of an intestinal organic obstruction (atresia), or of a functionnal obstruction (meconium-ileus, Hirschsprung disease) have been considered to be rare in preterm newborns. We report a case of caecal perforation with a pneumoperitoneum which occurred at 5 days of life, in a 28-week gestational age infant, that was treated by cecostomy. There were no signs of necrotizing enterocolitis. At 43 days of life, the preoperative contrast enema study revealed a left colon transition zone, suggesting a Hirschsprung disease, which was confirmed by rectal biopsies. Transanal pull-through was performed. There were no postoperative complication. This case demonstrates that an isolated intestinal perforation in very preterm newborn can reveal a Hirschsprung disease, especially if it occurs in the caecum.

Neonatal splenic injury is a rare but serious condition, due to the risk of haemorrhagic shock. We report on the case of a newborn infant with a neonatal respiratory distress that first evoked materno-fetal infection. Clinical deterioration, with anemia and abdominal distension, led then to the proper diagnosis. Dystocia seems to be the most likely cause of the splenic rupture in this report. Medical treatment is advocated as first line, while surgical treatment may be necessary in some cases. In the case surgery is inevitable, a conservative approach is preferable.

Intussusception due to lymphoma is a challenging condition for pediatric surgeons. The aim of this study is to report seven cases of this entity and to discuss its management.Six boys and one girl, 3-15-years-old, were admitted for intussusception secondary to a lymphoma. All patients underwent laparotomy: biopsy of massive abdominal tumor 6 and 8 weeks following resection of an intussusception (two cases), ileal resection of non-reductible intussusception (one case), right hemicolectomy for tumor of the appendix (one case), tumorectomy of localized ileal tumor (two cases), enlarged mesenteric lymph node biopsy associated with simple reduction of intussusception (one case). All children were successfully treated with protocol chemotherapy with a 15-month to 13-year follow-up. No relapse was observed.Surgeons should be aware of operative sights of ileal lymphomas. Diagnosis of lymphoma may be difficult after manual reduction of intussusception. A sample of any abnormality (mesenteric lymph node, peritoneal fluid) should be taken. Intestinal resection allows to reduce the intensity of chemotherapy but must be as limited as possible: ileal resection in cases of complicated intussusception, tumorectomy "in sano" in cases of ileal parietal isolated tumor. Reduction of intussusception alone (with no resection of ileal tumor) seems to be effective if diagnosis of lymphoma is possible from peripheral samples (peritoneal fluid, pleural effusion, mesenteric lymph node, bone marrow biopsy...).