Fever of Unknown Origin
Fig. 34.1 Maximum intensity projection (a) shows abnormal 18F-FDG mediastinal uptake. Note the absence of pathological uptake in the bilateral cervical lymph nodes detected clinically, and the absence of FDG…
Method and Patient Preparation
Fig. 2.1 Position of the patient during a brain study (a, b) and total body acquisition (c, d) (Discovery ST-E PET/CT system, General Electric Healthcare, Milwaukee, WI) Fig. 2.2 (a)…
Mycobacteriosis
Fig. 29.1 Maximum intensity projection 18F-FDG–PET image (a) shows multiple areas of increased radiopharmaceutical uptake in the thoracic region and in the upper abdomen (arrows). The axial CT (b), PET…
Ovarian Teratomas
Fig. 18.1 A 12-year-old girl with a positive biopsy for malignant ovarian teratoma. Maximum intensity projection (a) shows diffuse pathological FDG uptakes in the pelvis and upper abdomen. Axial abdominal…
Pediatric Nasopharyngeal Carcinoma
Fig. 13.1 Baseline 18F-FDG–PET/CT scan shows intense uptake in the nasopharyngeal primary lesion (a, b, f) as well as in multiple bilateral enlarged cervical lymph nodes (c, d) and in…
Spondylodiscitis
Fig. 26.1 A 12-year-old girl with spondylodiscitis was evaluated in a PET study, performed while she was on antibiotic therapy. Sagittal (a, b) and axial (c) CT and PET/CT fusion…
Inflammatory Bowel Diseases
Fig. 24.1 The maximum intensity projection 18F-FDG–PET image shows diffuse and intense radiopharmaceutical uptake in the large bowel Teaching Point 18F-FDG–PET/CT may be a useful noninvasive tool for identifying and…
Appendicitis
Fig. 25.1 A 12-year-old boy treated for acute lymphoblastic leukemia, t(12;21) positive. CT (a), PET (b), and PET/CT fusion (c) images show FDG accumulation in the right abdomen, corresponding to…
Epilepsia Partialis Continua
Fig. 22.1 Transaxial FDG–PET scan slices show a hypermetabolic focus in the right temporal mesial cortex (black arrow) and hypometabolism in the ipsilateral lateral and posterior temporal cortex (intra-hemispheric diaschisis,…
Poorly Differentiated Thyroid Carcinoma
Fig. 14.1 (a–d) The patient underwent PET/CT, which showed hypermetabolic soft tissue at the tracheostomy site. This was more likely an infectious/inflammatory change than malignancy. Otherwise, there were no suspicious…
