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…
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)…
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…
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…
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…
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…
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…
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…
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…
Fig. 8.1 (60 s uptake image, posterior view, LPO view, and RPO view): both kidneys show good uptake of radiotracer, with homogeneous intraparenchymal distribution; no cortical defects are evident in…
