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Introduction: Eosinophilic colitis (EC) is an uncommon inflammatory condition with the lowest reporting rate among eosinophilic gastrointestinal disorders. EC, which is characterized by the accumulation of eosinophilic cells, is typically diagnosed by a combination of clinical, imaging, and microscopic evaluations. We present a rare case of complete colonic obstruction due to eosinophilic colitis (EC) in a neonate, which was successfully managed with surgical intervention. Case presentation: A 27-day-old female neonate presented with bloody diarrhea and anemia, followed by repeated bilious vomiting, feeding intolerance, and abdominal distention along with very limited bowel motion. Abdominal radiography showed contrast-medium retention in the colon with persistent bowel dilatation while a lower GI contrast enema indicated a cut-off sign at the level of the sigmoid colon. Subsequent colonoscopy revealed a rectosigmoid stricture with complete luminal obstruction 7 cm from the anal verge. Histopathological examination showed marked eosinophilic infiltration through all the layers of the colon. Exploratory laparotomy showed a 3-cm complete stricture with severe gross inflammation in the rectosigmoid colon. Resection of the affected segment and primary anastomosis was achieved successfully, and the patient showed an uneventful recovery with no symptoms at discharge as well as age-appropriate weight gain at the one-year follow-up examination. Conclusion: To our knowledge, this is the first reported case of rectosigmoid stricture caused by EC in a neonate, and it highlights the importance of including EC in the differential diagnosis of colonic obstruction in neonates as well as the need for surgical management in such cases.

Eosinophilic colitis (EC) is an uncommon inflammatory condition with the lowest reporting rate among eosinophilic gastrointestinal disorders. EC, which is characterized by the accumulation of eosinophilic cells, is typically diagnosed by a combination of clinical, imaging, and microscopic evaluations. We present a rare case of complete colonic obstruction due to eosinophilic colitis (EC) in a neonate, which was successfully managed with surgical intervention. A 27-day-old female neonate presented with bloody diarrhea and anemia, followed by repeated bilious vomiting, feeding intolerance, and abdominal distention along with very limited bowel motion. Abdominal radiography showed contrast-medium retention in the colon with persistent bowel dilatation while a lower GI contrast enema indicated a cut-off sign at the level of the sigmoid colon. Subsequent colonoscopy revealed a rectosigmoid stricture with complete luminal obstruction 7 cm from the anal verge. Histopathological examination showed marked eosinophilic infiltration through all the layers of the colon. Exploratory laparotomy showed a 3-cm complete stricture with severe gross inflammation in the rectosigmoid colon. Resection of the affected segment and primary anastomosis was achieved successfully, and the patient showed an uneventful recovery with no symptoms at discharge as well as age-appropriate weight gain at the one-year follow-up examination. To our knowledge, this is the first reported case of rectosigmoid stricture caused by EC in a neonate, and it highlights the importance of including EC in the differential diagnosis of colonic obstruction in neonates as well as the need for surgical management in such cases. [ABSTRACT FROM AUTHOR]

Haemolytic uraemic syndrome (HUS) is an infectious disease that can rapidly become life-threatening in the paediatric population. A number of long-term complications may arise from HUS including the rare development of colonic strictures. In this case report, we present two cases with similar presentations of colonic strictures following HUS. Case 1 is a 17-month-old female who developed HUS and multiple complications including a sigmoid colonic stricture. Once the stricture was resected, her recovery was rapid and complete. Case 2 is a 3-year-old male who developed severe HUS requiring dialysis. After developing a small bowel obstruction, a laparotomy demonstrated caecal disease, pan-colonic inflammation, a calcified appendix and a strictured descending colon. A second operation revealed strictures at the transverse, descending and sigmoid colon. Once the diseased part of bowel had been removed his recovery was complete. This report demonstrates the diagnostic difficulty and patient morbidity that may arise from post-HUS colonic strictures. A contrast study is the recommended investigation of choice in patients presenting with ongoing gastrointestinal symptoms after an acute infection with HUS.

Although cytomegalovirus (CMV) is a common congenital infection in neonates, most patients are asymptomatic. Gastrointestinal manifestation is unusual. In this report, we described a newborn with perinatal CMV infection presented with symptoms mimicking necrotizing enterocolitis. We hope to alert clinicians about this possible diagnosis when managing newborn gastrointestinal diseases.