With increasing use of 18 F-fluorodeoxyglucose (FDG)-positron emission tomography (PET) in the current oncological practice, there is a growing body of evidence of false positive scans due to various benign conditions. In this communication we present intensely avid 18 F-FDG uptake in fibrous dysplasia of right tibia in a 12-year-old child suffering from embryonal rhabdomyosarcoma (ERMS) that c...

Objective(s): We investigated a frequency of lower extremity uptake on the radioactive iodine (RAI) whole body scan (WBS) after RAI treatment in patients with differentiated thyroid cancer, in order to retrospectively examine whether or not the frequency was pathological. Methods: This retrospective study included 170 patients with thyroid cancer, undergoing RAI treatment. Overall, 99r (58%) an...

Whole body iodine-131 scan is a well-established imaging method for the detection of metastatic or residual tumor sites in patients with well-differentiated thyroid cancer. Many false-positive iodine-131 scan findings mimicking metastatic thyroid cancer have long been reported. The authors describe a false positive uptake in normal gallbladder on post-ablative iodine-131 scan in a patient with ...

Objective(s): In clinical practice, approximately 10-25% of post-surgical differentiated thyroid carcinoma (DTC) patients with high serum thyroglobulin (Tg) and negative 131I whole-body scan (WBS) have poor prognosis due to recurrent or metastatic lesions after radioactive iodine treatment. The purpose of this study was to evaluate the value of 18F-FDG PET/CT scan in DTC patients with high seru...

A 57 years old man was diagnosed by histology of left axillary node as having diffuse large B cell lymphoma. Laboratory investigations revealed hypercalcemia with serum calcium level of 2.9mol/L (normal range: 2.08-2.60). Other blood examinations including complete blood count, coagulation markers, serum parathyroid hormone (PTH), liver and renal function and electrolytes other than calcium wer...

A 46-year-old patient with an 8-month history of right lumbar sciatic pain non-responding to conservative treatment and progressive loss of proximal strength in the lower right extremity is presented. Simple radiography showed a right supraacetabular radiodense area. CT scan confirmed the presence of a mixed lesion with lithic areas and a dense aggregate which seemed to correspond to chondroidm...

Results Whole body bone scan revealed asymmetrical increased up take in ankle and linear increased up take in left metatarsus (3th). His abdominal CT Scan showed multiple variable size hypodense lesions in bilateral kidneys and buldging and distortion of renal border. Bone marrow biopsy performed that revealed positive for CD45 and CD3. His renal lesions biopsy confirmed the diagnosis of Malign...

Received 8/9/2000; accepted 8/30/2000. For correspondence or reprints contact: Shyh-Jen Wang, M.D., Department of Nuclear Medicine, Taichung Veterans General Hospital, 160, Sec. 3, Taichung Harbor Road, Taichung 407, Taiwan, R.O.C. Tel: (886)4-23741349, Fax: (886)4-23741348, E-mail: [email protected] Adamantinoma is a rare low-grade malignant lesion that shows both epithelial and mesenc...

Musculoskeletal examinations provide informative and valuable quantitative insight into muscle and bone health. DXA is one mainstream tool used to accurately and reliably determine body composition components and bone mass characteristics in-vivo. Presently, whole body scan models separate the body into axial and appendicular regions, however there is a need for localised appendicular segmentat...

This paper describes a scheme for reconstructing 3D human models from whole-body scan data. The 3D human models are composed of superquadric primitives each corresponding to a functional body part. The reconstruction starts with primary segmentation of scan data, which defines the location of the articulation link in the human scan and results in topologically simple (primary) body parts. The p...