UNLABELLED Fever of unknown origin (FUO) is a challenging diagnostic problem. Timely identification and precise localization of the causing process are critical for appropriate patient management. The present prospective study evaluates the role of PET/CT using (18)F-FDG in the investigation of FUO. METHODS A total of 48 consecutive patients (25 men, 23 women; age range, 24-82 y) with FUO und...

RATIONALE F-18 Fluoro Deoxyglucose positron emission tomography and computed tomography (F-18 FDG PET/CT) is a useful modality in the evaluation of patients with malignancies. Increased incidence of lympho-proliferative disorders has been reported in individuals with long-standing end-stage renal disorders treated with renal replacement therapy. PATIENT CONCERNS A 30-year-old male on peritone...

Primary cutaneous lymphomas (PCLs) include both cutaneous T-cell and B-cell lymphomas and comprise the second most common type of extra-nodal non-Hodgkin's lymphomas. The treatment and prognosis of PCLs typically depend on the extent of disease. In evaluating extent of disease in oncological processes, computed tomography (CT) provides a purely anatomical assessment of disease. In comparison, [...

UNLABELLED Patients with differentiated thyroid carcinoma (DTC) are treated with (131)I therapy after total thyroidectomy or surgical resection of recurrent tumor. However, some recurrent DTC lesions are not iodine-avid, which affects further treatment planning. The aim of this study was to evaluate the clinical benefit of (18)F-FDG PET/CT performed concurrently with (131)I therapy in DTC patie...

BACKGROUND The purpose was the comparison of positron emission tomography using F-18-fluorodeoxy-glucose (FDG-PET) and spiral thoracic CT to detect pulmonary metastases from malignant primary osseous tumors. PATIENTS AND METHODS In 71 patients with histologically confirmed malignant primary bone tumors (32 osteosarcomas, 39 Ewing's sarcomas) 111 FDG-PET examinations were evaluated with regard...

Juvenile recurrent respiratory papillomatosis (JRRP) is an infectious disease caused by the growth of papillomas in the airway. Up to 4% of these cases degenerate into squamous cell carcinoma. We present the case of a 17-year-old female patient with JRRP in which the utility of (18)F-FDG-PET/CT in the characterization of suspicious papillomatous lesions of malignancy is evaluated. Morphometabol...

A 66-year-old male presented with chest pain, malaise, generalized weakness, and weight loss. He had been receiving etanercept injection for rheumatoid arthritis. Chest X-ray revealed a right upper lobe mass. Chest computed tomography (CT) showed a right apical mass, highly suggestive of a Pancoast tumor. The thoracic fluorine-18 fluoro-deoxy-glucose ((18)F-FDG) positron emission tomography (PE...

UNLABELLED The value of PET or PET/CT with (18)F-FDG for the staging of penile cancer has yet to be determined. The objective of this study was to investigate the pattern of (18)F-FDG uptake in the primary malignancy and its metastases and to determine the diagnostic value of (18)F-FDG PET/CT in the staging and restaging of penile cancer. METHODS Thirteen patients (mean +/- SD age, 64 +/- 14....

A young patient with undefined autoimmune lymphoproliferative syndrome (ALPS-U) and low back pain underwent a CT and MRI study that showed enhancing vertebral lesions, some pulmonary nodules and diffuse latero-cervical lymphadenopathy. A F-FDG-PET/CT scan showed many areas of intense F-FDG uptake in multiple vertebrae, in some ribs, in the sacrum, in the liver, in both lungs, in multiple lymph ...

UNLABELLED This study assessed the clinical performance of a combined PET/CT system using (18)F-FDG in oncologic patients. METHODS (18)F-FDG PET/CT was used to evaluate 204 patients with 586 suspicious lesions. All patients had available follow-up data, enabling assessment of the clinical significance of hybrid PET/CT findings. Differences in interpretation between PET, CT, and fused PET/CT d...