an inflammatory pseudotumor (ipt) is a rare benign lesion, characterized by nonneoplastic proliferation of inflammatory cells and presence of intermingling collagen fibers. ipt commonly occurs in the lungs and orbita, while an intraspinal ipt is extremely rare. ipt can mimic both clinically and radiologically malignant processes, and making a definitive preoperative diagnosis is often difficult...

UNLABELLED The feasibility of (18)F-3'-fluoro-3'-deoxy-L-thymidine PET (FLT PET) for detecting laryngeal cancer was investigated and compared with (18)F-FDG PET. METHODS Eleven patients diagnosed with or strongly suspected of having recurrent laryngeal cancer and 10 patients with histologically proven primary laryngeal cancer underwent attenuation-corrected (18)F-FLT PET imaging 60 min after ...

To the Editor: Solitary splenic non-Hodgkin’s lymphoma (SSNHL) is a rare primary neoplasm; with an incidence less than 1% [1-3]. Authors have stated that solitary splenic lymphoma shows diffuse red pulp infiltration and enlargement without mass formation [1]. It cannot be pointed out by plain computed tomography (CT) or magnetic resonance imaging (MRI), ultrasounography (US) or Gallium-67 citra...

A 61-year-old non-smoking woman presented with lowgrade fever of 1 year duration, which had remained undiagnosed after several first-line investigations. Intermittent non-productive cough and arthromyalgias were the only relevant complaints on history taking. Clinical examination was otherwise unremarkable. Laboratory findings only revealed increased C-reactive protein at 5 mg/dL. Of note, rena...

UNLABELLED 2-Deoxy-2-[(18)F]fluoro-d-glucose ([(18)F]FDG) has been extensively used as positron emission tomography (PET) tracer in clinical tumor imaging. This study compared the pharmacokinetics of two (18)F-labeled amino acid derivatives, O-2-[(18)F]fluoroethyl-l-tyrosine (l-[(18)F]FET) and 4-borono-2-[(18)F]fluoro-l-phenylalanine-fructose (l-[(18)F]FBPA-Fr), to that of [(18)F]FDG in an anim...

[18f]kf, considered as a reference standard for positron emission tomography of the skeletal system, was produced by the bombardment of enriched water ([18o]h2o>95%) with high energy protons in nrcam cyclotron. after the extraction of fluoride from enriched water as kf, and passing it through microbial filter and fine adjustment of acidity and osmolality, it was converted into an injectable for...

Encephalitis is a relatively rare condition for which making an accurate diagnosis can be challenging. In fact, clinical features are not specific and structural imaging can be normal in a considerable number of cases. However, an early diagnosis is important as many forms of treatment are effective if started promptly. Even though recent guidelines do not recommend (18)F-FDG PET/CT for patient...

N uclear medicine plays an important role in the evaluation of inflammation and infection. Radionuclide imaging is complementary to CT in the postoperative patient and is used to help differentiate postoperative changes from infection. In the case of painful joint replacement, radionuclide studies are the primary diagnostic imaging modality for differentiating infection from other causes of pro...