4199|Side-by-side lateral neck radiograph schematics: epiglottitis with a swollen epiglottis (thumb sign) and thickened aryepiglottic folds, next to croup with subglottic narrowing (steeple sign) on the frontal view; normal airway for comparison.
4204|Cut-away of the stomach and pylorus showing the thickened, elongated pyloric muscle narrowing the channel, with the ultrasound criteria of muscle thickness over 3 mm and length over 15 mm, and an inset of the palpable olive in the right upper quadrant.
4206|A teenager performing the Adams forward bend test showing a right thoracic rib hump, beside a spine radiograph schematic with the Cobb angle measured between the most tilted vertebrae above and below the curve.
4210|A toddler lying with the affected hip held flexed, abducted and externally rotated to reduce joint pressure, with insets of hip ultrasound showing a joint effusion and the Kocher criteria list.
4212|A toddler with bowed legs, widened wrists and ankles, a rachitic rosary and frontal bossing, beside a wrist radiograph schematic showing cupping, fraying and widening of the metaphyses.