A 9-year-old white male presents with a 3-month history of epigastric abdominal pain that is intermittent, aching, and lasts for 10-15 minutes. Pain is also present at night. Stool examination for occult blood is positive. The most likely diagnosis is

A 9-year-old white male presents with a 3-month history of epigastric abdominal pain that is intermittent, aching, and lasts for 10-15 minutes. Pain is also present at night. Stool examination for occult blood is positive. The most likely diagnosis is

Laboratory studies for the patient in Question 58 reveal serum aminotransferases of 900 IU/L, a total bilirubin of 8 and a direct of 4, serum IgG of 16 g/L, a positive ANA, and a positive anti-liver kidney microsomal antibody titer.

A 2-year-old child is evaluated 18 months after an unsuccessful portoenterostomy (Kasai) procedure to treat extrahepatic biliary atresia.

Dysphagia is best described as

After blunt facial trauma, a 12-year-old appears to have a missing incisor. There is no evidence of the tooth at the scene, and the child does not remember swallowing the tooth. The next step in evaluating the child is