No abstract available.
Bone Marrow* ; Iron* ; Microwaves* ; Plastics*

No abstract available.
Bone Marrow* ; Microwaves* ; Plastics*

PURPOSE: The purpose of this study was to evaluate the diagnostic accuracy of [18F]FDG PET in the diagnosis of recurrent head and neck cancer after the completion of surgery and radiotherapy in patients with head and neck cancers. MATERIALS AND METHODS: In fifty-nine patients with head and neck cancers, whole body [18F]FDG PET studies were performed. According to the different therapeutic modalities, patients were divided into four groups (Group I; pre-treatment, Group II; surgery, Group III; radiotherapy, Group IV; both surgery and radiotherapy). [18F]FDG PET images were compared with clinical, CT and histopathologic findings. RESULTS: For detection of metastatic lymph nodes in 14 patients of pre-treatment group (group I), the sensitivity and specificity of PET were 100% (10/10) and 75% (3/4), and those of CT were 80% (8/10) and 100% (4/4). For detection of recurrence in 45 patients of post-treatment group, overall sensitivity and specificity of PET were 96.2% (25/26) and 78.9% (15/19) [(100% and 75% in group II, 80% and 50% in group III, and 100% and 100% in group IV)] without significant difference from pre-treatment group (p>0.1). In detecting recurrence, the sensitivity and specificity of [18F]FDG PET were 90.9% (10/11) and 20% (1/5) in 16 patients who underwent [18F]FDG PET within 2 months after the completion of treatment. The specificity of these patients was significantly lower than that of 29 patients (100% of sensitivity and specificity) who underwent [18F]FDG PET 2 months after treatment (p<0.05). CONCLUSION: [18F]FDG PET is an accurate diagnostic modality for the detection of recurrence in head and neck cancer. Post-therapy [18F]FDG PET should be obtained at least 2 months after the completion of surgery or radiotherapy.
Diagnosis ; Head and Neck Neoplasms ; Head* ; Humans ; Lymph Nodes ; Neck* ; Radiotherapy* ; Recurrence ; Sensitivity and Specificity

No abstract available.
Bile* ; Carcinoembryonic Antigen* ; Gallbladder* ; Mesenteric Veins*

No abstract available.
Breast Neoplasms* ; Breast*

Vascular thrombosis and systemic hypercoagulable states are known complications of pancreatitits. The incidence of vascular obstruction associated with pancreatitis has been reported at 0.9%. They are thought to be secondary to release of proteolytic enzymes of the pancreas and direct vasculitis. Vessels near the head of the pancreas are more frequently involved, and arterial vessels are most commonly affected. Inferior vena cava (IVC) thrombosis however, is a very rare presentation of acute and chronic pancreatitis. Dignosis of IVC thrombosis may be far from easy; the presence of a leg edema, superficial thrombophlebitis or thromboembolic events may arouse clinical suspicion. Therefore, a high degree of suspicion for this complication is necessary in order to render a diagnosis. A case of a 24-year old man with chronic pancreatitis, who was found to have IVC and right iliac vein thrombosis, is herein report with a review of the relevant literature.
Diagnosis ; Edema ; Head ; Humans ; Iliac Vein* ; Incidence ; Leg ; Pancreas ; Pancreatitis ; Pancreatitis, Chronic* ; Peptide Hydrolases ; Thrombophlebitis ; Thrombosis* ; Vasculitis ; Vena Cava, Inferior* ; Young Adult

Extracorporeal shock wave lithotripsy monotheraphy was performed in 315 urinary stones from 278 patients with the Domestic SDS-2 lithotriptor using C-arm fluoroscopy between December 1991 and December 1994. Of 315 cases, renal stones were 150 cases(47.6%) and ureteral stones 165 cases(36.1%). No regional or general anesthesia was required but parenteral or oral analgesics were required in some patients. Among 315 cases who completed extracorporeal shock wave lithotripsy, the overall success rate of treatment was 90.5% with 92.4% in 5-9 mm, 94.8% in 10-19 mm, 89.7% in 20-29 mm and 61.5% over 30 mm or staghorn stones. Post lithotripsy complications were transient gross hematuria in 17.1%, renal colic in 11.4%, steinstrasse in 4.8%, petechia in 2.9% and fever in 1.9% and these complications were controlled with conservative treatment or repeated session of extracorporeal shock wave lothotropsy, percutaneous nephrodtomy, Double-J stent insertion or ureterolithotomy. We suggest that extracorporeal shock wave lithotripsy monotheraphy with the Domestic SDS-2 lithotriptor was considered to be effective and safe procedure for the initial treatment of urinary stones.
Analgesics ; Anesthesia, General ; Fever ; Fluoroscopy ; Hematuria ; Humans ; Lithotripsy ; Renal Colic ; Shock* ; Stents ; Ureter ; Urinary Calculi*

No abstract available.
Hemorrhoids*

Epithelioid hemangioendothelioma(EH) is a rare vascular tumor of low-grade malignancy. It was previously described as intravascular bronchioloalveolar tumor (IVBAT). But electron microscopic study and immunohistochemical staining results have proved endothelial origin. Patients are usually asymptomatic and the tumors are found incidentally on routine chest X-rays. Most patients show a slowly progressive clinical course, even though some patients occasionally die as results of respiratory failure or extrathoracic complications. Confirmative diagnosis is made through thoracoscopic or open-lung biopsy. There is still no effective therapeutic modality for pulmonary EH. We have experienced a 55-year-old woman whose simple chest x-ray film revealed bilateral multiple small nodules. The nodules were histopathologically and immunohistochemically diagnosed as primary epithelioid hemangioendothelioma of the lung. The possibility of metastatic disease was excluded thorough clinical, laboratory and radiological studies. Comparison of radiographic chest film taken 3 years ago showed no significant progression of the pulmonary nodular lesions. Conservative management was instituted and careful 4 months follow-up showed no significant changes.
Biopsy ; Diagnosis ; Female ; Follow-Up Studies ; Hemangioendothelioma, Epithelioid* ; Humans ; Lung ; Middle Aged ; Respiratory Insufficiency ; Thorax ; X-Ray Film

BACKGROUND: Because of the common etiologic factor, such as smoking, lung cancer and chronic obstructive Pulmonary disease are often present in the same patient. The preoperative prediction of remaining pulmonary function after the resectional surgery is very important to prevent serious complication and postoperative respiratory failure. 99mTc-MAA perfusion scan has been used for the prediction of postoperative pulmonary function, but it may be inaccurate in case of large V/Q mismatching. We compared 99mTc-DTPA radioaerosol inhalation scan with 99mTc-MAA perfusion scan in predicting postoperative lung function. METHOD: Preoperative inhalation scan and/or perfusion scan were performed and pulmonary function test were performed preoperatively and 2 month after operation. We predicted the postoperative pulmonary functions using the following equations. Postpneumonectomy FEV1=Preop FEV1x% of total function of lung to remain RESULTS: 1) The inhalation scan showed good correlations between measured and predicted FEV1, FVC and FEF25-75%. (correlation coefficiency; 0.94, 0.91, 0.87 respectively). 2) The perfusion scan also showed good correlations between measured and predicted FEV1, FVC and FEF25-75%. (correlation coefficiency; 0.86, 0.72, 0.97 respectively). 3) Among three parameters, FEV1 showed the best correlations in the prediction by lung scans. 4) Comparison between inhalation scan and perfusion scan in predicting pulmonary function did not show any significant differneces except FVC. CONCLUSION: The inhalation scan and perfusion scan are very useful in the prediction of postoperative lung function and don't make a difference in the prediction of pulmonary function although the former showed a better correlation in FVC.
Humans ; Inhalation* ; Lung ; Lung Neoplasms ; Perfusion* ; Pulmonary Disease, Chronic Obstructive ; Respiratory Function Tests ; Respiratory Insufficiency ; Smoke ; Smoking