Match each classic clinical presentation and associated radiographic or sonographic finding with the most appropriate pediatric gastrointestinal diagnosis.
- A 3-week-old infant presenting with acute bilious emesis; an upper gastrointestinal contrast series reveals the duodenojejunal flexure positioned inferiorly and to the right of the midline.Midgut volvulus
- A 6-month-old infant with episodic, severe abdominal pain and currant jelly stools; an abdominal ultrasound demonstrates a 'pseudokidney' or 'target' sign in the right upper quadrant.Intussusception
- A 10-day-old premature neonate developing feeding intolerance and abdominal distension; an abdominal radiograph shows intramural gas tracking along the bowel wall.Necrotizing enterocolitis
- A 4-week-old infant with progressive, nonbilious, projectile vomiting; an abdominal ultrasound reveals a muscle thickness greater than 4 mm and a channel length greater than 14 mm.Hypertrophic pyloric stenosis
Answer
The presentations match as follows: The infant with bilious emesis and right-sided flexure has midgut volvulus. The infant with a 'target' sign and bloody stools has intussusception. The premature neonate with pneumatosis intestinalis has necrotizing enterocolitis. The infant with nonbilious projectile vomiting and thickened muscle has hypertrophic pyloric stenosis.
Each clinical vignette and imaging description uniquely identifies a specific pediatric gastrointestinal disorder. Pairing these correctly demonstrates mastery of pathognomonic signs necessary for accurate diagnostic triage.
Step-by-Step Solution
Key Concept
Recognizing pathognomonic clinical presentations paired with classic imaging findings is essential for the rapid diagnosis and management of pediatric gastrointestinal emergencies.