A 3 year old boy living in Asia presents with intermittent colicky abdominal pain, vomiting, and constipation. On exam, you feel an abdominal mass near the ileocecal valve area. In the past, he has had longstanding abdominal discomfort, anorexia, nausea, and diarrhea. About a month ago, he had an irritating nonproductive cough, pleuritic chest pain, rales, and wheezing. Laboratory tests at the time showed eosinophilia. Luckily, you recognize the cause:
Challenge: What is the disease?
Image is in the public domain.