Intussusception Caused by Adenomyoma in a Two-Month-Old Infant

Abstract

A healthy two-month-old infant was transported to our emergency department with chief complaints of confusion, bad humor, and appetite loss. Because of poor appetite and dehydration, she was admitted to our hospital with acute gastroenteritis. On the next day, she had bloody stools, and an abdominal echogram and CT revealed intussusception. High-pressure enema was performed diagnostically and therapeutically using sixfold diluted gastrographin. Intussusception was observed in the transverse colon, and it was reduced about 30 cm oral from the ileum end, but further reduction was not possible with any additional pressure. Emergency operation was performed. At approximately 30 cm oral from the ileum end, intussusception was observed, and Hutchinson’s maneuver was performed. The tumor was found at the leading point. Approximately 8 cm of ischemic small intestine was resected, including the tumor, and anastomosed. The histopathological finding was adenomyoma. Sixteen cases of pediatric intussusception with adenomyoma have been reported by 2014 in Japan, and this is one of the youngest cases.