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…
Fig. 9.1 Orbital hemangioma in a 4-month-old infant. (a) Color Doppler US shows a hypervascular solid mass in the right orbit. (b, c) Axial fat-saturated T1- and T2-weighted MR images…
Fig. 7.1 Nasolacrimal duct cysts in a 15-day-old girl. (a) Axial T2-weighted image shows cystic masses in the medial canthus of both the orbits. (b, c) Coronal T2-weighted images show…
Fig. 1.1 Neurulation (dorsal induction). Simplified schematic drawing of the neurulation shows neural tube formation from the surface ectoderm induced by notochord. Proliferation of the neural ectoderm produces neural groove…
Classification Site of regression Atresia 1. Left aortic arch (a) Normal anatomy R4, R3, Rd (b) Aberrant right subclavian artery R2, Rd (c) Right descending aorta R2 or R3, Ld …
Stage Radiographic findings Initial (increased density stage) Increased density of femoral head, with or without subchondral fracture; radiolucencies appear in the metaphysis Fragmentation stage Varying pattern of lucency appear in…
Appendicular skeleton Humeri (AP) Forearms (AP) Hands (PA) Femurs (AP) Lower legs (AP) Feet (AP) Axial skeleton Thorax (AP, lateral, right, and left obliques), to include ribs, thoracic, and upper…
Fig. 19.1 Esophageal atresia with tracheoesophageal fistula in a neonate with excessive oral secretion. (a) Chest radiograph at 1 hour of life shows the blind-ending proximal esophageal pouch distended with…
Fig. 8.1 Fungal sinusitis in leukemic patient. (a) Postcontrast CT shows sinusitis in both ethmoid and sphenoid sinuses extending to the right medial orbit with subperiosteal abscess formation. (b, c)…
Fig. 34.1 A 2-month-old girl presented with the swelling of bilateral forearm. (a) Typical periosteal new bone formation (arrows) of mandible. (b, c) Periosteal new bone formation (arrows) of radius…
