Neonatal Chest Imaging
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…
Cystic Renal Disease and Neoplasms
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…
Neoplasms of the Head and Neck
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…
Congenital Malformations of the Head and Neck
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…
Congenital Anomalies of the Brain and Spinal Cord
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…
Congenital Thoracic Vascular Anomalies and Associated Airway Diseases
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 …
Pediatric Hip Disorders
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…
Pediatric Skeletal Trauma
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…
Congenital and Neonatal Gastrointestinal Diseases
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…
Infectious and Traumatic Diseases
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)…
