Clinical nuclear medicine
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Clinical nuclear medicine · Jul 2011
Case ReportsAn unusual unilocular mesothelial cyst of the pleura: a case report.
A 79-year-old woman was found to have an abnormal shadow on chest radiography. Computed tomography demonstrated a pleural mass. The F-18 fluorodeoxyglucose positron emission tomography (FDG PET) was performed to determine whether the pleural mass was benign or malignant. ⋯ The FDG PET findings of a mesothelial cyst of the pleura have not yet been previously reported. The FDG PET findings of a mesothelial cyst in the pleura reflected the microscopic findings of the resected mass. The FDG PET findings, therefore, seem to be useful in the diagnosis of mesothelial cysts.
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Clinical nuclear medicine · Jul 2011
Meta AnalysisF-18 FDG PET for evaluation of bone marrow involvement in non-Hodgkin lymphoma: a meta-analysis.
In recent years, the use of F-18 fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) has become widespread for the staging of lymphoma. In non-Hodgkin lymphoma (NHL), the bone marrow (BM) involvement is a sign of extensive disease, and the iliac crest BM biopsy (BMB) is the established method for the detection of BM infiltration. However, iliac crest BMB is associated with a high rate of false-negative results. We assess the ability of FDG PET or PET/CT scan to ascertain the presence of BM involvement in aggressive and indolent NHL. ⋯ The diagnostic accuracy of FDG PET or PET/CT scans was slightly higher but without significant statistical difference (P = 0.1507) in patients with non-Hodgkin aggressive lymphoma as compared with those with non-Hodgkin indolent lymphoma. The sensitivity to detect indolent lymphoma BM infiltration was low for FDG PET or PET/CT.
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Clinical nuclear medicine · Jun 2011
Case ReportsIntramuscular metastasis of uterine cervix cancer on F-18 FDG PET/CT.
We report F-18 FDG PET/CT images of biopsy-proven intramuscular metastasis from primary uterine cervix cancer. A 70-year-old woman was admitted because of a mass in the left axilla. She was diagnosed with uterine cervix cancer and underwent total abdominal hysterectomy, bilateral salpingo-oophorectomy, and pelvic node dissection and received adjuvant chemotherapy and radiation therapy 9 years ago. ⋯ Hypermetabolic lymph nodes were also noted in the left axilla, interpectoral, and left supraclavicular areas. Additionally, several hypermetabolic nodules were noted in both lungs. The lesion in the left axilla was excised and the pathologic results were consistent with metastasis from uterine cervix cancer.
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Clinical nuclear medicine · Jun 2011
Case ReportsSchmorl's node may cause an increased FDG activity.
Schmorl's node is an intraspongious disc herniation, which is formed within the vertebral body through a cartilaginous endplate. Schmorl's nodes are commonly seen at radiographic examination or autopsy. Schmorl's nodes are generally considered to be asymptomatic. In this article, we demonstrate the incidental findings of moderate FDG uptake in the Schmorl's node.
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Clinical nuclear medicine · May 2011
Causes of photopenic defects in the lower sternum on bone scintigraphy and correlation with multidetector CT.
To determine the cause of this photopenia in the lower sternum on bone scintigraphy and its correlation with sternal foramen on multidetector computed tomography (MDCT). ⋯ This study revealed that not all patients showing photopenic areas in the lower sternum have sternal foramen and not all patients with sternal foramen show photopenic areas by bone scintigraphy. It is important to exclude metastasis when photopenic areas are detected, and inform the clinician to avoid the serious complication of cardiac tamponade.