BACKGROUND: In patients with endometrial carcinoma, preoperative evaluation of exact staging has important prognostic and therapeutic implications. The incidence of pelvic and aortic lymph node involvement in endometrial carcinoma depends on grade of tumor differentiation and depth of myometrial invasion. MATERIAL AND METHOD: To evaluate whether MRI provides a preoperative assessment for staging of endometrial carcinoma, MRI was undertaken in 28 patients, a few weeks before operation. Myometrial invasion was devided in three categories, and involvement of cervix, adnexa, and pelvic cavity were classified. RESULTS: The results of MR imaging were compared with these of pathology. The preoperative MRI staging of endometrial carcinoma was correct in 22 out of 28 patients. In the evaluation of myometrial invasion, the MR imaging underestimated in 4 cases and overestimated in 1 case. CONCLUSION: In patients with endometrial carcinoma, MR imaging is very useful in the assessment of the depth of myometrial invasion, stromal invasion of cevix, lymphatic & pelvic metastases and extent of the lesion.
Cervix Uteri ; Endometrial Neoplasms* ; Female ; Humans ; Incidence ; Lymph Nodes ; Magnetic Resonance Imaging* ; Neoplasm Metastasis ; Pathology

BACKGROUND: We sought to determine the value of combining diffusion-weighted (DW) and perfusion-weighted (PW) sequences with a conventional magnetic resonance (MR) sequence to assess solid components of borderline ovarian tumors (BOTs) and stage I carcinomas.METHODS: Conventional, DW, and PW sequences in the tumor imaging studies of 70 patients (BOTs, n=38; stage I carcinomas, n=32) who underwent surgery with pathologic correlation were assessed. Two independent radiologists calculated the parameters apparent diffusion coefficient (ADC), K(trans) (vessel permeability), and V(e) (cell density) for the solid components. The distribution on conventional MR sequence and mean, standard deviation, and 95% confidence interval of each DW and PW parameter were calculated. The inter-observer agreement among the two radiologists was assessed. Area under the receiver operating characteristic curve (AUC) and multivariate logistic regression were performed to compare the effectiveness of DW and PW sequences for average values and to characterize the diagnostic performance of combined DW and PW sequences.RESULTS: There were excellent agreements for DW and PW parameters between radiologists. The distributions of ADC, K(trans), and V(e) values were significantly different between BOTs and stage I carcinomas, yielding AUCs of 0.58 and 0.68, 0.78 and 0.82, and 0.70 and 0.72, respectively, with ADC yielding the lowest diagnostic performance. The AUCs of the DW, PW, and combined PW and DW sequences were 0.71±0.05, 0.80±0.05, and 0.85±0.05, respectively.CONCLUSION: Combining PW and DW sequences to a conventional sequence potentially improves the diagnostic accuracy in the differentiation of BOTs and stage I carcinomas.
Area Under Curve ; Diagnosis ; Diffusion ; Humans ; Logistic Models ; Magnetic Resonance Imaging ; ROC Curve

BACKGROUND: We sought to determine the value of combining diffusion-weighted (DW) and perfusion-weighted (PW) sequences with a conventional magnetic resonance (MR) sequence to assess solid components of borderline ovarian tumors (BOTs) and stage I carcinomas. METHODS: Conventional, DW, and PW sequences in the tumor imaging studies of 70 patients (BOTs, n=38; stage I carcinomas, n=32) who underwent surgery with pathologic correlation were assessed. Two independent radiologists calculated the parameters apparent diffusion coefficient (ADC), K(trans) (vessel permeability), and V(e) (cell density) for the solid components. The distribution on conventional MR sequence and mean, standard deviation, and 95% confidence interval of each DW and PW parameter were calculated. The inter-observer agreement among the two radiologists was assessed. Area under the receiver operating characteristic curve (AUC) and multivariate logistic regression were performed to compare the effectiveness of DW and PW sequences for average values and to characterize the diagnostic performance of combined DW and PW sequences. RESULTS: There were excellent agreements for DW and PW parameters between radiologists. The distributions of ADC, K(trans), and V(e) values were significantly different between BOTs and stage I carcinomas, yielding AUCs of 0.58 and 0.68, 0.78 and 0.82, and 0.70 and 0.72, respectively, with ADC yielding the lowest diagnostic performance. The AUCs of the DW, PW, and combined PW and DW sequences were 0.71±0.05, 0.80±0.05, and 0.85±0.05, respectively. CONCLUSION Combining PW and DW sequences to a conventional sequence potentially improves the diagnostic accuracy in the differentiation of BOTs and stage I carcinomas.

BACKGROUND: This study was performed to determine the effect of a endotracheal intubation & induction of anesthesia using propofol 2.0 mg/kg or 2.5 mg/kg and fentanyl 2 g/kg without succinylcholine chloride. Also we have compared this method with technique using succinylcholine 1.5 mg/kg and thiopental sodium 5 mg/kg. METHODS: They were divided into 3 groups as follows: group 1, succinylcholine 1~1.5 mg/kg and thiopental sodium 5 mg/kg; group 2, propofol 2 mg/kg and fentanyl 2 microgram/kg; group 3, propofol 2.5 mg/kg and fentanyl 2 microgram/kg. Systolic arterial pressure (SAP) and diastolic arterial pressure (DAP), and heart rate (HR) were measured before induction, after induction, after tracheal intubation immediately, at 1, 2, 3, and 5min. after tracheal intubation in all patients. The incidence of adverse effects and the quality of condition for intubation were measured in all patients. RESULTS: There were significant increases in SAP, DAP, HR after intubation in group 1 but significant decreases in SAP, DAP after induction and at 5min. after intubation in group 2 and group 3. The incidence of adverse effects, and the quality of condition for intubation were no significant difference between group 1 and group 3. CONCLUSIONS: From the above result, use of propofol 2.5 mg/kg and fentanyl 2microgram/kg provided a satisfactory alternative to succinylcholine and thiopental sodium for rapid sequence induction of anesthesia.
Anesthesia ; Arterial Pressure ; Fentanyl ; Heart Rate ; Humans ; Incidence ; Intubation* ; Intubation, Intratracheal ; Propofol ; Sodium* ; Succinylcholine ; Thiopental

We report a case of dural-based intracranial primary mesenchymal chondrosarcoma, initially thought to be a meningioma. This rare tumor should be included in the differential diagnosis of an aggresive dural-based lesion occurring in a young adult. A 27-year-old man presented with headache, nausea and vomiting, first experienced months earlier. Pre-enhanced CT revealed the presence of a well-marginated isodense mass with dense calcifications in the frontoparietal convexity, while MR images depicted a lobulated extra-axial mass with peritumoral edema. At T1-weighted imaging, the signal intensity of the mass was slightly low or than that of gray matter, while T2-weighted imaging demonstrated heterogeneous high signal intensity. Some portions of the tumor showed low signal intesnity at all sequences, suggesting the presence of calcification. After the injection of contrast medium, heterogeneous enhancement was observed. We report the radiologic findings of an intracranial primary mesenchymal chondrosarcoma, confirmed pathologically.
Adult ; Chondrosarcoma ; Chondrosarcoma, Mesenchymal* ; Diagnosis, Differential ; Edema ; Headache ; Humans ; Meningioma ; Nausea ; Vomiting ; Young Adult

Purpose: The goal of this study was to retrospectively compare systematic ultrasound-guided prostate biopsy (US-PB) and multiparametric magnetic resonance imaging-ultrasound fusion prostate biopsy (MRI-PB) in men undergoing primary or repeated biopsies. Methods: A population of 2,200 patients with a prostate-specific antigen (PSA) level >4.0 ng/ dL and/or an abnormal rectal examination was divided into two groups. All patients underwent US-PB (n=1,021) or MRI-PB (n=1,179) between April 2015 and April 2019. Population demographics, including age, PSA level, digital rectal examination results, prostate volume, number of previous negative biopsies, Prostate Imaging Reporting and Data System (PI-RADS) version 2 (V2) score, and biopsy results, were acquired and compared with respect to these variables. Univariate regression analysis of the risk factors for a higher Gleason score (GS) was performed. Results: The cancer detection rate (CDR) was 23.8% (243 of 1,021) in the US-PB group and 31.3% (399 of 1,179) in the MRI-PB group. Of those, 225 patients (22.0%) in the US-PB group and 374 patients (31.7%) in the MRI-PB group had clinically significant prostate cancer (csPCa). The patients with csPCa in the MRI-PB group included 10 (40%), 50 (62.5%), 184 (94.8%), and 32 (94.1%) patients with PI-RADS V2 scores of 2, 3, 4, and 5, respectively. Of the patients with csPCa, 155 (91.7%) in the US-PB group were diagnosed on the basis of the primary biopsy, compared to 308 (94.4%) in the MRI-PB group. We found the PI-RADS V2 score to be the best predictor of a higher GS. Conclusion MRI-PB showed a high CDR for csPCa. MRI-PB could be a reasonable approach in patients with high PI-RADS V2 scores at primary biopsy.

Collision tumor is a synchronous neoplasm wherein two histologically distinct tumors co-exist within the same anastomosis site. Collision tumor can occur in any organ, but the incidence is markedly rare. Additionally, preoperative diagnosis can be challenging to the radiologist. Herein, we report an age 60 male with collision tumor of rectal adenocarcinoma and diffuse large B-cell lymphoma, presented as a semi-annular wall thickening and bulky exophytic mass on MR imaging.
Adenocarcinoma ; B-Lymphocytes ; Diagnosis ; Humans ; Incidence ; Lymphoma ; Lymphoma, B-Cell ; Magnetic Resonance Imaging ; Male ; Neoplasms, Multiple Primary ; Rectum

The perforation of the superior vena cava during the placement of a tunneled hemodialysis catheter, via the subclavian vein, is a rare complication, and is manifested by hemothorax or hemopericardium. The treatment of this complication requires an early diagnosis and open thoracic surgery. Herein, we report a patient with hemothorax due to the perforation of the superior vena cava during the placement of a tunneled hemodialysis catheter via the right subclavian vein which was successfully treated by embolization by way of a coil and histoacryl.
Catheterization ; Catheters ; Early Diagnosis ; Embolization, Therapeutic ; Enbucrilate ; Hemothorax ; Humans ; Pericardial Effusion ; Renal Dialysis ; Subclavian Vein ; Thoracic Surgery ; Vena Cava, Superior

PURPOSE: To describe efficacy of percutaneous lithotripsy for removing difficult bile duct stones using endoscopy. MATERIALS AND METHODS: A total of 88 patients with difficulties for the removal of bile duct stones using endoscopy (an impacted stone, stone size >15 mm, intrahepatic duct (IHD) stone, stone size to bile duct diameter ratio >1.0), were enrolled in this study. A 12 Fr sheath was inserted through the percutaneous transhepatic biliary drainage (PTBD) tract, and then nitrol stone baskets and a 0.035" snare wire were used to capture, fragment and remove the stones. The technical and clinical success rates were analyzed, together with an analysis of any complications. RESULTS: The overall technical success rate of stone removal was achieved in 79 of 88 patients (89.8%). In five of nine patients with failed stone removal, small residual IHD stones were noted on a cholangiogram. Even if stone removal failed in these cases, cholangitic symptoms were improved and the drainage catheter was successfully removed. Therefore, clinical success was achieved in 84 of 88 patients (95.5%). There were no significant procedure-related complications, except for sepsis in one case. CONCLUSION: Billiary stone removal using the stone basket and guide-wire snare technique through the PTBD tract is a safe and effective procedure that can be used as a primary method in patients with difficulties for the removal of bile duct stones using endoscopy.
Bile ; Bile Ducts ; Catheters ; Dioxolanes ; Drainage ; Endoscopy ; Fluorocarbons ; Humans ; Lithotripsy ; Nitroglycerin ; Sepsis ; SNARE Proteins