We describe the use of gold-coating expandable urethral stents implanted into 3 patients with urinary obstruction due to recurrent urethral stricture(one case) and inoperable benign prostatic hypertrophy(two cases) respectively. The stent formed from stainless steel in the form of a cylindrical zigzag pattern and coated with 24 carat gold was inserted via delivering device using fluoroscopy control under heal anesthesia. During 6 months follow-up. the stents remained in situ and there were no urinary incontinence or other complication. The maximum flow rate were 24ml/sec in case of urethral stricture and 20ml/sec in BPH. These patients were satisfied with the procedure which provided a quiet safe and effective alternative to conventional surgical treatment.
Anesthesia ; Fluoroscopy ; Follow-Up Studies ; Humans ; Stainless Steel ; Stents* ; Urethral Obstruction* ; Urethral Stricture ; Urinary Incontinence

A 63-year-old woman presented to the hospital with gross hematuria and acute renal failure. Kidney function deteriorated rapidly and progressively. A renal biopsy revealed segmental or circumferential crescents associated with linear deposits of immunoglobulin G, typical of anti-glomerular basement membrane disease. Both c-ANCA and anti-GBM antibody were detected in serum. She was treated with hemodialysis, plasmapheresis, high dose steroid and cyclophosphamide. However, she died 7 weeks after treatment because of pneumonia, without recovery of renal function. Serologic positivity of both ANCA and anti-GBM antibody are becoming more frequently recognized in rapidly progressive glomerulonephritis. The influence of c-ANCA on the clinical course of anti-GBM glomerulonephritis remains to be determined.
Acute Kidney Injury ; Anti-Glomerular Basement Membrane Disease ; Antibodies, Antineutrophil Cytoplasmic ; Basement Membrane* ; Biopsy ; Cyclophosphamide ; Cytoplasm* ; Female ; Glomerulonephritis* ; Hematuria ; Humans ; Immunoglobulin G ; Kidney ; Middle Aged ; Plasmapheresis ; Pneumonia ; Renal Dialysis

Herpes simplex virus type I (HSV-I) causes an acute necrotizing encephalitis that selectively affects tempioral and frontal lobes. The sequelae and mortality of herpes simplex encephalitis(HSE) may be reduced by available antiviral therapy and therefore early diagnosis of HSE is essential. We have assessed the potential of brain perfusion scintigraphy using Tc-99m-HMPAO single photon emission computed tomoglaphy(SPECT) in HSE. Nine Tc-99m-HMPAO SPECTs were performed in eight patients with clinically suspected herpes simplex encephalitis. The examinations were made between 18 days and 10 months after onset of encephalitic symptoms The SPECT images in seven patients revealed decreased accumulation ol radioactivity in the affected temporal, frontal or parietal lobes. In a 30 yr-old female patient, two SPECT images were obtained on 18th day after the onset of symptoms and 3 months later. Her initial SPECT showed increased accumulation of radioactivity in the affected temporal and inferior frontal lobes. 3 month later follow-up SPECT image revealed the decreased radioactivity in the affected temporal, inferior frontal, and inferior parietal lobes. We found that the SPECT done at early stage of HSE may show increased cerebral perfusion due to inflammatory or other pathologic mechanism and the later stage SPECT may show decreased cerebral perfusion due to decreased cerebral metabolism caused by neuronal death We suggest that Tc-99m-HMPAO SPECT may support the clinical diagnosis of HSE.
Brain ; Diagnosis ; Early Diagnosis ; Encephalitis, Herpes Simplex ; Female ; Follow-Up Studies ; Frontal Lobe ; Herpes Simplex ; Humans ; Leukoencephalitis, Acute Hemorrhagic ; Metabolism ; Mortality ; Neurons ; Parietal Lobe ; Perfusion ; Perfusion Imaging ; Radioactivity ; Simplexvirus ; Tomography, Emission-Computed, Single-Photon*

BACKGROUND/AIMS: [18F]FDG-PET is a functional imaging modality reflecting cellular glucose metabolism. In most malignant cells, accumulation and trapping of [18F]FDG allows the visualization of increased uptake compared with normal cells. The aim of this study was to assess the value of PET in differentiating benign from malignant hepatic lesions and to determine in which types of hepatic tumors PET can help evaluate stage, monitor response to therapy, and detect recurrence. METHODS: Eighty patients with liver lesions were enrolled (hepatocellular carcinoma 34, cholangiocarcinoma 8, metastatic liver cancer 25, hemangioma 6, liver abscess 7). Liver metastases were 22 adenocarcinoma, 2 lymphoma, 2 squamous cell carcinoma. The PET images of these patients were analyzed. SUV and lesion-to-normal liver background SUV ratio were obtained and compared among the disease groups. RESULTS: All liver metastases and all cholangiocarcinomas had increased uptake value, with SUV ratios greater than 2. Hepatocellular carcinoma had SUV ratios greater than 2 in 20 of 34 patients (59%). All hemangiomas had poor uptake, a SUV ratio of less than 2. All liver abscesses showed definite uptake. CONCLUSIONS: The PET technique using FDG static imaging was useful in differentiating malignant from benign lesions of the liver in limited situations. Limitations included false negative results in some patients with hepatocellular carcinoma. Liver abscesses raised problems in differential diagnosis from malignant liver tumors. The findings of this study suggest that the PET technique might be applied in tumor staging and the detection of recurrence, as well as monitoring responses to therapy for all adenocarcinomas and some hepatocelluar carcinomas.
Adult ; Aged ; Diagnosis, Differential ; English Abstract ; Female ; Fludeoxyglucose F 18/diagnostic use ; Human ; Liver Diseases/*radionuclide imaging ; Liver Neoplasms/radionuclide imaging ; Male ; Middle Aged ; Radiopharmaceuticals/diagnostic use ; *Tomography, Emission-Computed

Intestinal lymphangiectasia is characterized by protein- losing enteropathy, and is diagnosed by a small bowel biopsy demonstrating dilated lymphatics in the mucosa, submucosa and serosa in the absence of coexistent inflammation. We report a case of primary intestinal lymphangiectasia that occurred in a 2-year-6-month-old girl who was treated successfully with antiplasmin and octreotide. Initially, the patient was treated with a lipid restriction diet with medium chain triglyceride oil, but her symptoms were not relieved. This case shows that antiplasmin and octreotide therapy might be useful for treating refractory primary intestinal lymphangiectasia.
Biopsy ; Diet ; Female ; Humans ; Inflammation ; Mucous Membrane ; Octreotide* ; Serous Membrane ; Triglycerides

BACKGROUND/AIMS: Barrett's esophagus is a premalignant lesion of the esophagus in which normal squamous epithelium is replaced by intestinalized columnar epithelium. In Korea, adenocarcinoma associated with Barrett's esophagus is rare compared with that of Western country. The purpose of this study was to investigate the immunohistochemical expression of p53 and Ki-67 in Barrett's esophagus which had predictive value for cancer risk in Korea. METHODS: Ninety five patients (43 male and 52 female, median age 44, range 21-75) who have been suspected to have Barrett's esophagus by endoscopic assessment were enrolled in this study. Alcian blue (pH 2.5) and high ion diamine stain for the evaluation of specialized intestinal metaplasia (SIM) and immunohistochemical stain for p53 and Ki-67 were done. RESULTS: 57.9% (55/95) of biopsies from the columnar lined esophagus showed SIM, but no dyspalsia. 56.4% (31/55) of Barrett's esophagus showed sulfomucin positive colonic metaplasia. The p53 expression was observed in 10.9% (6/55) of the patients of Barrett's esophagus and all of them showed colonic metaplasia. Ki-67 labeling index showed no difference significantly. CONCLUSIONS: In Korea, 10.9% of Barrett's esophagus had p53 mutation and moreover all of them had colonic metaplasia. Consequently, we expect that these patients have high risk of developing dysplasia and adenocarcinoma and need careful follow-up.
Adenocarcinoma/etiology/genetics ; Adult ; Aged ; Barrett Esophagus/complications/*metabolism ; Esophageal Neoplasms/etiology/genetics ; Female ; Humans ; Immunohistochemistry ; Ki-67 Antigen/*metabolism ; Male ; Middle Aged ; Risk Factors ; Tumor Suppressor Protein p53/*metabolism

Purpose: Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors have greatly improved survival in EGFR-mutant (EGFRm) non–small cell lung cancer (NSCLC); however, their effects on the tumor microenvironment (TME) are unknown. We assessed the changes induced by neoadjuvant erlotinib therapy (NE) in the TME of operable EGFRm NSCLC. Materials and Methods: This was a single-arm phase II trial for neoadjuvant/adjuvant erlotinib therapy in patients with stage II/IIIA EGFRm NSCLC (EGFR exon 19 deletion or L858R mutations). Patients received up to 2 cycles of NE (150 mg/day) for 4 weeks, followed by surgery and adjuvant erlotinib or vinorelbine plus cisplatin therapy depending on observed NE response. TME changes were assessed based on gene expression analysis and mutation profiling. Results: A total of 26 patients were enrolled; the median age was 61, 69% were female, 88% were stage IIIA, and 62% had L858R mutation. Among 25 patients who received NE, the objective response rate was 72% (95% confidence interval [CI], 52.4 to 85.7). The median disease-free and overall survival (OS) were 17.9 (95% CI, 10.5 to 25.4) and 84.7 months (95% CI, 49.7 to 119.8), respectively. Gene set enrichment analysis in resected tissues revealed upregulation of interleukin, complement, cytokine, transforming growth factor β, and hedgehog pathways. Patients with upregulated pathogen defense, interleukins, and T-cell function pathways at baseline exhibited partial response to NE and longer OS. Patients with upregulated cell cycle pathways at baseline exhibited stable/progressive disease after NE and shorter OS. Conclusion NE modulated the TME in EGFRm NSCLC. Upregulation of immune-related pathways was associated with better outcomes.