We report a case of intestinal schistosomiasis associated with iliocaecal intussusception
resulting from obstructions of the terminal part of the ileum by schistosome egg-induced fibrosis. A 7-
year-old boy presented with the history of abdominal pain and difficulties in passing stool for two
months. Ultrasound examination revealed doughnut signs characterized with multiple concentric rings at
the lateral abdomen, and the bowel loop appeared distended. Exploratory laparatomy confirmed
intussusception of the terminal part of the ileum into the caecum, extending to the ascending colon.
Hemicolectomy and end-to-end iliocolostomy was performed. Histological examination of the resected
bowel revealed
Schistosoma mansoni
eggs within the mucosa, submucosa of the ileum, caecum and
ascending colon, granulomatous inflammation with foreign body giant cells accompanied by fibrosis and
eosinophilic infiltrate into the mucosa. Postoperatively, the patient recovered well. There may have been
a synergistic effect of schistosomiasis with other underlying conditions, leading to intussusception. In
conclusion, it is important to consider
S. mansoni infection as a differential diagnosis for intestinal
obstruction in endemic areas.