Benign Skeletal Disease
Fig. 26.1 (a) Bone scan shows multiple areas of intense uptake in the skull, bilateral humeral shafts, and proximal radii. (b–c) The right humerus plain film shows an oblique diaphyseal…
Oncology: Solid Mass in Pediatrics and Malignant Bone Involvement
Fig. 12.1 (a, b) Contrast-enhanced CT. Axial (a) and MPR coronal (b) images showed a large retroperitoneal mass, appearing not homogeneously hypodense for the presence of multiple nonenhancing necrotic areas…
Bronchopneumology
Fig. 27.1 (a–c) Chest X-ray (a) and coronal (b) and axial (c) CT scan of the chest show normal findings, the absence of parenchymal or pleural abnormalities, regular airway. (d–e)…
Oncology: Neuroblastoma
Fig. 13.1 (a, b) Ultrasonographic images detect a large, oval, “comma”-shaped suprarenal mass showing an echoic fine nonhomogeneous pattern; neither calcifications nor necrotic areas are seen within the lesion. Diameters…
Benign Skeletal Disease: Bone Infection and Inflammation
Fig. 21.1 (a–c) Three-phase bone scintigraphy: Phase I (a) showed symmetric flow in the shoulders; in phase II (early phase, b, left image), a mild radiotracer uptake was evident in…
Gastroenterology: Intestinal Bleeding
Fig. 16.1 Scintigraphy is performed using seriated images (at 5′, 15′, 30′, 45′, and 60′ after the intravenous administration of Tc99m pertechnetate) in anterior view, with the child in supine…
Gastroenterology: Biliary Atresia, Choledochal Cyst, Cystic Fibrosis
99mTc-BRIDA (mins) Hepatic Tmax 12 Hepatic T ½ 15–20 Principal bile duct visualization 5–20 Gallbladder visualization 10–40 Tracer appearing in the bowel 15–45 19.2 Teaching Cases 19.2.1 Case 19.1…
Nephrourology: Vesicoureteral Reflux
Fig. 6.1 (a, b) The qualitative analysis of basic dynamic study reveals an intense concentration of tracer in the renal parenchyma and rapid washout of both kidneys (a). Renogram curves…
Gastroenterology: Gastric Emptying – Gastroesophageal Reflux
Fig. 15.1 (a, b) Scintigraphic study is performed after oral liquid meal administration revealing a progressive gastric emptying without gastroesophageal reflux. Time/activity curves corresponding to stomach and esophagus allow to…
Hydronephrosis
Etiology Incidence (%) US findings Diagnostic exams Transient hydronephrosis 50–70 Isolated hydronephrosis (mild) US UPJO 10–30 Isolated hydronephrosis (DAP >15 mm) MAG3 VUR 10–40 Intermittent hydronephrosis, ureteric dilatation, small kidney…
