Fig. 31.1 A 10-year-old boy with acute osteomyelitis. (a) Plain radiograph of the right femur demonstrates no bony abnormalities. (b) Bone scan 2 h delayed image demonstrates increased uptake in…
Fig. 4.1 Cerebellar pilocytic astrocytoma in a 7-year-old girl. (a) CT scan shows hypoattenuated mass (arrow) with calcification in the midline cerebellum. (b) The mass becomes bright on T2-weighted image,…
Fig. 20.1 Hypertrophic pyloric stenosis in an 8-week-old infant with vomiting. (a) Supine abdominal radiograph shows gaseous distension of the stomach with prominent peristaltic waves (arrows), called “caterpillar sign.” There…
Fig. 26.1 Patent urachus in a 1-month-old neonate with urine leakage from umbilicus. (a) Longitudinal US shows a urine-filled patent urachus (arrowheads) extending from the dome of bladder (B) to…
Fig. 23.1 Herlyn-Werner-Wunderlich syndrome in a 15-year-old girl. (a–d) Abdominopelvic CT of axial (a and b) and coronal (c and d) images show double uterus (arrows) with distended left hemivagina…
Fig. 14.1 Intraparenchymal inflammatory myofibroblastic tumor in a 16-year-old girl. (a) Plain radiograph shows a rounded, well-circumscribed opacity in the right lower lung (arrow). (b, c) Nonenhanced (b) and contrast-enhanced…
Fig. 32.1 Osteochondroma in the left scapula. (a) Axial CT image shows a protruding bone-forming mass arising from the left inferomedial scapula of which the medullary cavity is continuous with…
Fig. 13.1 Respiratory syncytial virus (RSV) infection in an 18-month-old boy. Frontal (a) radiograph demonstrates hyperaeration, perihilar peribronchial thickening, and areas of subsegmental atelectasis. Lateral view (b) shows depression of…
Fig. 11.1 Various appearances of a normal thymus in newborn. (a) “Sail” sign. Note triangular extension laterally that looks like a sail. (b) “Wavy thymus” sign. The arrow indicates the…
Fig. 24.1 Autosomal recessive polycystic kidney disease in a 7-day-old boy. (a) Longitudinal US shows an enlarged kidney with heterogeneously increased echogenicity. Corticomedullary differentiation is obliterated. (b) High-resolution US of…
