The nuclear medicine literature is rich with reports of both normal and abnormal accumulation of bone imaging agents (99m Tc-HDP, MDP or PYP) in extra-skeletal structures. The cases published in this issue of the Journal of Nuclear Medicine Technology are excellent examples of this phenomenon. Extraskeletal uptake is usually an incidental finding on the bone scan, although the bone scan occasio...

sarcoidosis is a systemic disease that is characterized with noncaseating granulomatous nodules which present in multiple organs specially lungs (90%) . incidence of masses due to sarcoidosis in upper extremity is low and most cases present in association with involvement of pulmonary hilary lymph nodes. in this article we present a rare case of sarcoidosis which presented as a single soft tiss...

Purpose This study evaluated the potential of 68Ga-citrate positron emission tomography/computed tomography (PET/CT) for the detection of infectious foci in patients with Staphylococcus aureus bacteraemia by comparing it with 2-[18F]fluoro-2-deoxy-D-glucose (18F-FDG) PET/CT. Methods Four patients admitted to hospital due to S. aureus bacteraemia underwent both 18F-FDG and 68Ga-citrate whole-b...

evaluate nificantly expected same scan. Incidental abdominal findings involving the digestive tract have been reported to occur in 1.3% of the scanned patients without significant difference in the intensity of F-FDG uptake w malignant, premalignant, and benign lesions. How focal, fusiform, or lobulated abnormalities are signific more intense than physiological uptake elsewhere i bowel, particu...

Positron emission tomography (PET) using 2-deoxy-2-[(18)F] fluoro-D-glucose ((18)F-FDG) has been used with increased frequency in the care of patients with soft tissue sarcomas to predict malignant potential of tumours, prognosis of survival and response to chemotherapy. Although there are several other PET tracers, which have found limited use in sarcomas, this review focuses on the use of (18...

Soft tissue modeling for the creation of a haptic simulator for training medical skills has been the focus of many attempts up to now. In soft tissue modeling the most important parameter considered is its being real-time, as well as its accuracy and sensitivity. In this paper, ANFIS approach is used to present a nonlinear model for soft tissue. The required data for training the neuro-fuzzy mo...

OBJECTIVE Two sequential (99m)Tc methylene diphosphonate (MDP) scans were performed on a 42-y-old woman with insulin-dependent diabetes mellitus, chronic right pyelonephritis and anemia. The initial scan showed reduced skeletal uptake with intense and diffuse hepatic uptake. Because these findings were similar to those seen when excessive hydrolyzed-reduced (99m)Tc colloids are present in the r...

Introduction: Coverage of bone grafts is very important in reconstructive surgery. In edentulous alveolar ridges this coverage is particularly important for supporting dental prostheses. Here we present the case of a patient with a large deficient maxillary anterior region that was reconstructed with a bilateral palatal submucosal periosteal connective tissue flap: a soft tissue reserve for up...