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The purpose of the study was to evaluate theMR imaging features that differentiate between low-grade chondrosarcoma (LGCS) and high-grade chondrosarcoma (HGCS) and to determine the most reliable predictors for differentiation. MR images of 42 pathologically proven chondrosarcomas (28 LGCS and 14 HGCS) were retrospectively reviewed. There were 13 male and 29(More)
Immunoglobulin G4 (IgG4)-related sclerosing disease is a systemic disease characterized by extensive IgG4-positive plasma cells and T-lymphocyte infiltration in various organs. We described the imaging findings of an IgG4-related inflammatory pseudotumor in the urethra. The urethral mass showed isoattenuation on unenhanced CT images, delayed enhancement on(More)
BACKGROUND The objective of the current study was to determine the significance of sarcomatoid differentiation as a prognostic factor for immunotherapy in metastatic renal cell carcinoma (RCC). METHODS Patients with metastatic RCC were included in this study and were categorized according to sarcomatoid differentiation. RESULTS Patients with sarcomatoid(More)
PURPOSE To retrospectively determine the usefulness of segmental enhancement inversion during the corticomedullary phase (CMP) and early excretory phase (EEP) of biphasic multidetector computed tomography (CT) in differentiating small renal oncocytoma from renal cell carcinoma (RCC). MATERIALS AND METHODS This retrospective study was institutional review(More)
OBJECTIVE. The purpose of this study was to compare the MDCT features of renal cell carcinoma (RCC) associated with Xp11.2 translocation and TFE3 gene fusion (Xp11 RCC) and papillary RCC. MATERIALS AND METHODS. The study included 19 and 39 patients with histologically proven Xp11 RCC and papillary RCC, respectively, who underwent multiphase renal MDCT(More)
OBJECTIVE To evaluate conventional magnetic resonance imaging (MRI), prostate needle biopsy (PBx), and the combination of both tests in predicting the laterality of final specimen pathology after radical prostatectomy. METHODS A total of 574 radical prostatectomy cases that had PBx with at least 12 cores and preoperative prostate MRI with pelvic coil were(More)
BACKGROUND Wide variation in tacrolimus concentrations and low tacrolimus exposure have been reported to be associated with poor renal graft outcomes in non-Asians. The CYP3A5 polymorphism is a representative genetic factor that might affect this association, together with environmental factors. We investigated whether tacrolimus variability or the mean(More)
C1q nephropathy is a proliferative glomerulopathy with extensive mesangial deposition of C1q. A three-year old boy presented with a nephrotic-range proteinuria during an acute phase of Epstein-Barr virus (EBV) infection, and he had a family history of Dent's disease. The renal biopsy findings were compatible with C1q nephropathy. However, EBV in situ(More)
We investigated the expression of apoptosis-related markers and their association with the clinical outcomes of patients with urothelial carcinoma of the upper urinary tract. A total of 112 patients with urothelial carcinoma of the upper urinary tract that had surgery from March 1998 to July 2005 were included in the study. Tissue microarray slides were(More)
OBJECTIVES To survey the status of TMPRSS2-ERG fusion in Korean prostate cancer patients, we assessed the differences in clinicopathologic characteristics and biochemical recurrence according to TMPRSS2-ERG fusion status. METHODS The incidence of the TMPRSS2-ERG fusion gene was evaluated via fluorescence in situ hybridization (FISH) using ERG break-apart(More)