9th September 2020

A 1-year-old boy presents with a 24-hour history of severe abdominal pain that comes and goes

A 1-year-old boy presents with a 24-hour history of severe abdominal pain that comes and goes, and vomiting. Painful episodes last 1-2 minutes during which he cries inconsolably and draws his knees to his chest. His mother noticed that there was something in his stool that looked like red currant jelly. He has been previously healthy except that a congenital anatomical abnormality of his small intestine was diagnosed at his last hospital visit, but no treatment was required at the time. On examination, you palpate a mass in the right lower quadrant. Intussusception is diagnosed. What is the most likely cause?

Select the SINGLE most appropriate option from the list below. Select ONE option only.