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<SUP>18</SUP>F-FDG PET-CT에서 진단된 갑상선 우연종의 악성종양 발견율 및 특징
이강영,고건<SUP>1<.SUP>,김선국<SUP>1<.SUP>,고진철<SUP>1<.SUP>,김행수,최상용,박신희,박용휘<SUP>2<.SUP>,Kang Young Rhee,Gun Koh,<SUP>1<.SUP>,Sun Kuk Kim,<SUP>1<.SUP>,Jin Chul Koh,<SUP>1<.SUP>,Haeng Soo Kim,Sang Yong Choi,Shin 대한갑상선-내분비외과학회 2008 The Koreran journal of Endocrine Surgery Vol.8 No.1
<B>Purpose: </B>PET-CT is often used to differentiate benign or malignant thyroid incidentalomas. In this retrospective study, we evaluated whether the <SUP>18</SUP>F-FDG uptake pattern and PET-CT findings improved accuracy over the standardized uptake value (SUV). <B>Methods:</B> <SUP>18</SUP>F-FDG PET-CT was performed on 2,178 subjects from August, 2004, to October, 2007, in Sung-ae Hospital. PET-CT was performed on 806 patients (37%) with suspected or known nonthyroidal cancer and 1,372 healthy subjects (63%) without a previous history of cancer. We investigated the clinical characteristics of patients, history, standardized uptake value (SUV), ultrasonography, and hormone levels in blood. Thyroidal cancer was confirmed by ultrasonography-guided fine needle aspiration and pathology after thyroid operation. <B>Results:</B> The prevalence of focal thyroid lesions on PET-CT was 8.8% (191/2178). Thyroid cancer confirmation was 7.9% (15/191). The maximum SUV of malignant thyroid lesions were significantly higher than that of benign lesions (7.00±3.08 vs. 4.49±1.84, P<0.001). <B>Conclusion:</B> PET-CT image interpretation that includes 18F-FDG uptake and SUV is better than PET-CT alone for differentiating benign and malignant lesions. Thyroid cancer risk increases as SUVmax levels increase. <B>(Ko</B><B></B><B>rean J Endocrine Surg 2008;8:38-42)</B>
최상용(Sang Young Choi) 대한소화기학회 1993 대한소화기학회지 Vol.25 No.1
N/A Five patients with HCC (hepatocellular carcinoma) obstructing biliary duct presented with obstructive jaundice. The diagnosis was totally unsuspected in first two cases, patient one and two (pt #1, pt #2). Space occupying lesions seen on ultrsonography or C-T scan, elevated a FP, positive HBs Ag, and previous history of chronic liver disease hepled in making a diagnosis of this unusual presentation of HCC, In the first 2 cases, liver parenchymal lesions were never confirmed on perioperative imaging studies as well as postoperative serial check ups until patients deaths, on postoperative day 229 and 215 respectively. In 3 patients (pt #s, pt #3, pt #4), evacuation of obstructing materials and T-tube decompression was done. In one patient (pt #5), right hepatic lobectomy was done after initial tube decompression of the biliary system. The other patient (pt #1) underwent cholecystectomy, enbloc resection of bile duct with obstructing mass, and Roux-en-Y cholangio-jejunostomy. In 4 out of 5 cases, obstructing tumor thrombi reccurred postoperatively. Repeated choledochoscopy was neccesary to keep the bile duct free of tumor thrombi postoperatively, In conclusion, not all the patients who present with obstructive jaundice may be terminally ill when they treated properly. The biliary drain by mean of T-tube decompression can be a palliativ, procedure of choice in these patients. The ideal treatment is complete removal of the tumor by rnajor hepatic resection, wl.ich may not be feasible in most patients. However, even when patient present with resectable lesion, those who have entire biliary systems inr.luding small and medium sized duct packed with tumor thrombi would not have long survival intervals with heaptic resection.