PURPOSE: Visual internal urethrotomy is a standard therapy for incomplete urethral stricture, and may also be a reasonable initial treatment for a short complete urethral stricture. The success rate and final results of the repeated internal urethrotomy were retrospectively assessed to figure out the appropriate indication for visual internal urethrotomy as an initial treatment for incomplete pendulous and bulbous urethral stricture; according to the stricture free month. MATERIALS AND METHODS: Between January 1990 and December 1999, an internal urethrotomy was primarily performed on 166 patients with urethral strictures. The exclusion criteria were complete urethral and posterior urethral stricture. Retrograde urethrography was performed under fluoroscopic control. When the stricture recurred, the urethrotomy was repeated as the primary procedure. RESULTS: With regard to the time to recurrence, the success rate of the group of stricture recurrence at 6 months was significantly lower than that of the stricture free group at 6 months. CONCLUSIONS: With regard to the stricture site and length, the stricture free month might be considered as an important predictor of the outcome of a repeated internal urethrotomy, and visual internal urethrotomy might be considered as an initial treatment method for incomplete urethral stricture under the following conditions; a bulbous stricture, a stricture length under 20mm, and stricture free at 6 months.
Constriction, Pathologic ; Endoscopy ; Humans ; Recurrence ; Reoperation ; Retrospective Studies ; Urethral Stricture*

Hemifacial spasm consists of irregular, but repetitive clonic twitching of the muscles of one side of the face. Usually it is first involved around the eyes, the repetitive twitching spreads slowly to involve the whole face. It most commonly affects middle aged or elderly women, and usually appears with an aberrant vascular cross-compression near the root entry zone (REZ) of VII nerve. Among numerous approaches to treat facial spasm, only Jannetta's microvascular decompression has confirmed efficacy. However facial nerve block by needle insertion technique seems to be of benefit in patients with mild spasm, the elderly, poor risks and those who refuse the craniotomy. To treat our three patients with hemifacial spasm, we did physical facial nerve block by a direct puncture of the facial nerve trunk just at its exit from the stylomastoid foramen. Satisfactory results were obtained by the treatment employed. This technique is a valuable method in the treatment of hemifacial spasm.
Aged ; Craniotomy ; Facial Nerve* ; Female ; Hemifacial Spasm* ; Humans ; Microvascular Decompression Surgery ; Middle Aged ; Muscles ; Needles ; Punctures ; Spasm

PURPOSE: The mechanism of hypoxic damage is mainly intracellular influx of calcium ions through the glutamate ionotropic receptor. This study was performed to determine alterations in distribution and expression of kainate receptor subunits after 1 hour of moderate hypoxia in the newborn piglet brain, as in a condition of mild to moderate perinatal hypoxic-ischemic encephalopathy. METHODS: Ten newborn piglets were ventilated at PaO2 over 80mmHg for 30min. Thereafter, the control group(n=5) was ventilated with 21% oxygen, and hypoxic group(n=5) with 6% oxygen at PaO2 below 25mmHg for 1 hour. Concentrations of protein, ATP and phosphocreatine were determined. The proteins were immunostained with anti-rat GluR6/7 and anti-rat KA2 antibody. RESULTS: Hypoxia(PaO2 20+/-1mmHg) and acidosis(pH 7.06+/-0.09) developed significantly in the hypoxic group compared to the control group(PaO2 104+/-4mmHg, pH 7.44+/-0.03, respectively, P<0.01). The concentrations of ATP(2.84+/-1.28micromol/kg brain, P<0.05) and phosphocreatine(0.78+/-1.07micromol/kg brain, P<0.001) were reduced compared to the control group(5.04+/-0.25micromol/kg brain, 4.03+/-0.31micromol/kg brain, respectively). The protein contents of GluR6/7 subunits were ordered; cerebral cortex>hippocampus, thalamus, hypothalamus>basal ganglia, cerebellum>white matter, and KA2 subunits were ordered : hippocampus, basal ganglia>cerebral cortex>thalamus, cerebellum>hypothalamus, white matter. The distribution of the subunits between the hypoxic group and control group were similar. CONCLUSION: Cerebral cortex, hippocampus and basal ganglia may be the most vulnerable to excitotoxic injury. Kainate receptor subunits did not change after 1 hour of moderate hypoxia.
Adenosine Triphosphate ; Anoxia ; Basal Ganglia ; Brain* ; Calcium ; Cerebral Cortex ; Ganglia ; Glutamic Acid ; Hippocampus ; Humans ; Hydrogen-Ion Concentration ; Hypoxia-Ischemia, Brain ; Infant, Newborn* ; Ions ; Oxygen ; Phosphocreatine ; Receptors, Kainic Acid ; Thalamus

PURPOSE: The mechanism of hypoxic damage is mainly intracellular influx of calcium ions through the glutamate ionotropic receptor. This study was performed to determine alterations in distribution and expression of kainate receptor subunits after 1 hour of moderate hypoxia in the newborn piglet brain, as in a condition of mild to moderate perinatal hypoxic-ischemic encephalopathy. METHODS: Ten newborn piglets were ventilated at PaO2 over 80mmHg for 30min. Thereafter, the control group(n=5) was ventilated with 21% oxygen, and hypoxic group(n=5) with 6% oxygen at PaO2 below 25mmHg for 1 hour. Concentrations of protein, ATP and phosphocreatine were determined. The proteins were immunostained with anti-rat GluR6/7 and anti-rat KA2 antibody. RESULTS: Hypoxia(PaO2 20+/-1mmHg) and acidosis(pH 7.06+/-0.09) developed significantly in the hypoxic group compared to the control group(PaO2 104+/-4mmHg, pH 7.44+/-0.03, respectively, P<0.01). The concentrations of ATP(2.84+/-1.28micromol/kg brain, P<0.05) and phosphocreatine(0.78+/-1.07micromol/kg brain, P<0.001) were reduced compared to the control group(5.04+/-0.25micromol/kg brain, 4.03+/-0.31micromol/kg brain, respectively). The protein contents of GluR6/7 subunits were ordered; cerebral cortex>hippocampus, thalamus, hypothalamus>basal ganglia, cerebellum>white matter, and KA2 subunits were ordered : hippocampus, basal ganglia>cerebral cortex>thalamus, cerebellum>hypothalamus, white matter. The distribution of the subunits between the hypoxic group and control group were similar. CONCLUSION: Cerebral cortex, hippocampus and basal ganglia may be the most vulnerable to excitotoxic injury. Kainate receptor subunits did not change after 1 hour of moderate hypoxia.
Adenosine Triphosphate ; Anoxia ; Basal Ganglia ; Brain* ; Calcium ; Cerebral Cortex ; Ganglia ; Glutamic Acid ; Hippocampus ; Humans ; Hydrogen-Ion Concentration ; Hypoxia-Ischemia, Brain ; Infant, Newborn* ; Ions ; Oxygen ; Phosphocreatine ; Receptors, Kainic Acid ; Thalamus

Desmoplastic small round cell tumor (DSRCT) is a rare and highly malignant mesenchymal tumor found in the abdominal cavity. It mainly affects young male patients. We report a case of DSRCT that occurred in the abdominal cavity of a 50-year-old man. The tumor was characterized by small round tumor cells with irregular nests in the prominent desmoplastic stroma. The tumor cells showed immunoreactivity for epithelial membrane antigen, desmin, vimentin, and neuron specific enolase.
Abdominal Cavity ; Desmin ; Desmoplastic Small Round Cell Tumor* ; Humans ; Male ; Middle Aged ; Mucin-1 ; Phosphopyruvate Hydratase ; Vimentin

The abdominal tumors in children are different from those of adult. These tumors are the third most common one, preceded by leukemia and brain tumors, in children under 15 years. X-ray examination is the most important method among diagnostic approaches. The role of diagnostic imaging is to identify the precise anatomic location and extent of pathologic process with the minimal number of imaging procedures. 23 cases of abdominal tumors were reviewed in respect of age incidence, site of origin, radiologic findings. The results are briefly summarized as follows: 1. Neuroblastoma was the most common (6 cases) and wilm's tumor (5 cases), choledocal cyst (4 cases), ovarian mass (3 cases), hydronephrosis (2 cases), were descending order in frequency. 2. The most common site was retroperitoneum (60%) Kidney was the single most common site of origin. 3. Radiologic findings. The most common findings of plain radiography was ill defined soft tissue mass and this method was helpful in the presence of calcification especially in neuroblastoma. Ultrasonographic pattern was anechoic (cystic), echoic or mixed pattern, but this method provide less precise anatomical details, nevertheless Ultrasonography was particularly useful imaging modality for the pediatric abdominal tumors. IVP findings were renal displacement, caliceopelvic system distortion or nonvisualization of kidney, these information was helpful in determining the location of tumors. CT scan showed homogenous or inhomogeneous, cystic or solid, mass with their anatomic location. 4. Ultrasonography was the most widely used specific diagnostic method, but had limited value in detecting the anatomic location of tumors. CT scan was superior to ultrasound for determining the extent of tumors.
Adult ; Brain Neoplasms ; Child ; Diagnostic Imaging ; Humans ; Hydronephrosis ; Incidence ; Kidney ; Leukemia ; Methods ; Neuroblastoma ; Radiography ; Tomography, X-Ray Computed ; Ultrasonography ; Wilms Tumor

PURPOSE: We investigated the correlations between the expression of claudin-1 and claudin-7 in clear cell renal cell carcinoma (clear cell RCC) and clinical parameters. MATERIALS AND METHODS: The subjects of this study were 119 patients with confirmed clear cell RCC between January 2000 and December 2007. Their RCC tissues were immunohistochemically stained for claudin-1 and claudin-7. The correlations between the expression of claudin and parameters such as sex, age, body mass index (BMI), tumor size, TNM stage, Furhman nuclear grade, postoperative distant metastasis, and cancer-specific survival were analyzed. RESULTS: Among the total 119 subjects, claudin-1 was expressed in 18 (15.1%) and claudin- 7 in 31 (26.1%). Claudin-1 was expressed in patients who were older (p=0.007), who had a greater tumor size (p=0.001), who had a higher pathologic T stage (p=0.009), who had preoperative distant metastasis (p=0.035), and who had a higher Furhman nuclear grade (p=0.004). Claudin-7 was expressed only in patients who had a higher Furhman nuclear grade (p=0.031). The risk of postoperative distant metastasis was associated with the expression of claudin-1 (p<0.001) but not with the expression of claudin-7 (p=0.668). The expression of claudin-1 and -7 was not associated with cancer-specific survival (p>0.05). CONCLUSIONS: In clear cell RCC, claudin-1 was expressed in patients who were older and who had a greater tumor size, who had higher T or M stages, and who had a higher Furhman nuclear grade. The expression of claudin-1 was associated with a higher risk of postoperative distant metastasis.
Body Mass Index ; Carcinoma, Renal Cell ; Claudin-1 ; Humans ; Neoplasm Metastasis

Parry-Romberg syndrome(Progressive hemifacial atrophy), described in the last century by Parry(1825) and Romberg(1846), is a very rare disorder characterized by a slowly progressive and self-limited unilateral(rarely bilateral) atrophy of the faces affecting variably the skin, subcutaneous fat tissues, musculature, connective tissue, cartilage and bones. And this disorder is usually accompanied by contralateral Jacksonian epilepsy, trigerminal neuralgia, and changes in the eyes and hair. The onset is slow and progressive, starting at 5-15 years of age and lasting from 2-10 years, ending with the face being "burned out". There are a few cases of this disease which presented during the neonatal period. This disorder seems to affect females more than males, and its etiology and incidence has yet to be determined. Trauma, infection with a slow virus, sympathetic dysfunction, immunological abnormality and cranial vascular malformation are proposed causes. No typical or consistent neuropathologic findings occur. No specific treatment for the syndrome exists; however, various reconstructive surgical procedures can have in reasonably good cosmetic effects, as well as antiinflammatory or immunosuppressive treatment. We report a case of Parry-Romberg syndrome, which was presented at 1 month of age, and has progressd to contralateral hemiparesis.
Atrophy ; Cartilage ; Connective Tissue ; Epilepsy ; Facial Hemiatrophy* ; Female ; Hair ; Humans ; Incidence ; Infant, Newborn* ; Male ; Neuralgia ; Paresis ; Reconstructive Surgical Procedures ; Skin ; Subcutaneous Fat ; Vascular Malformations

PURPOSE: To investigate the ability of serum prostate specific antigen (PSA) as an estimator of the prostate volume in patients with symptomatic benign prostatic hyperplasia (BPH) according to their decade of life. MATERIALS AND METHODS: Between January 1997 and May 2003, 3,192 patients presented at our clinic due to lower urinary tract symptoms. Of these 1,922 were confirmed as BPH and enrolled in this study. Patients with prostate cancer and conditions other than BPH at the baseline were excluded. Receiver operating characteristic (ROC) curves were constructed to evaluate the diagnostic ability of serum PSA to estimate the threshold prostate volume and select the optimal PSA cut-off values. RESULTS: The ROC curve analyses revealed the serum PSA to be a good estimator of the prostate volume, with areas under the ROC curves of 0.785, 0.846 and 0.856 for prostate volume cut-off points of 30, 40 and 50ml, respectively. The optimal serum PSA cut-off values for all age groups, irrespective of age, were 1.5ng/ml for the detection of a prostate volume>30ml and 2.0ng/ml for a prostate volume>40ml. CONCLUSIONS: Serum PSA can be used to estimate the prostate volume. Since the treatment outcome or risk of complications depends on the prostate volume, the estimated prostate volume is useful in therapeutic decision making in the absence of a reliable direct measurement of the prostate volume.
Decision Making ; Humans ; Lower Urinary Tract Symptoms ; Prostate* ; Prostate-Specific Antigen* ; Prostatic Hyperplasia* ; Prostatic Neoplasms ; ROC Curve ; Treatment Outcome

PURPOSE: To determine the criteria that can be used to safely reduce unnecessary biopsies for patient found to be lower urinary tract symptoms (LUTS)/benign prostatic hyperplasia (BPH) negative on digital rectal examination (DRE) and transrectal ultrasound (TRUS), with a prostate specific antigen (PSA) level over 4.0ng/ml. MATERIALS AND METHODS: A retrospective data analysis of 157 patients, with a raised serum PSA level, over 4.0ng/ml, and negative DRE and TRUS findings was performed. The detection rates of prostate cancer according to the prostate volume were also investigated. All patients with one benign biopsy were followed with PSA determination over a 2 year period, and in the cases of men with a persistently elevated PSA, a re-biopsy was suggested. Patients were also classified according to the results of the first biopsy and the follow up PSA level. RESULTS: Of the 157 patients, the rate of prostate cancer was 14.6% (23 of 157), and that for a benign disease, including BPH, was 85.4% (134 of 157). The rates of prostate cancer according to prostate volume (PV) were 20.6 (22 of 107) and 2.0% (1 of 50) in those with a PV80ml, respectively. In the men with one benign biopsy, cancer was not found in 61 (23 with a prostatectomy and 38 with a re-biopsy) and 112/134 (83.6%) had normalized PSA after 1 year. CONCLUSIONS: A statistically significant difference was noted in the profile of a prostate biopsy for cancer according to the prostate volume. We concluded that the majority of LUTS/BPH men with a prostate volume over 80ml have PSA elevation due to BPH or another benign prostate disease, not related to cancer. For patients with negative DRE and TRUS findings, a large prostate (>80ml) and elevated prostate-specific antigen (PSA), over 4ng/ml, watchful waiting, with PSA follow up and BPH treatment, may be a suitable option.
Biopsy* ; Digital Rectal Examination ; Follow-Up Studies ; Humans ; Lower Urinary Tract Symptoms ; Male ; Prostate* ; Prostate-Specific Antigen* ; Prostatectomy ; Prostatic Hyperplasia ; Prostatic Neoplasms ; Retrospective Studies ; Statistics as Topic ; Ultrasonography ; Watchful Waiting