Intracranial dermoid cyst is a rare congenital benign disease, representing less than 0.5% of primary brain tumors. Nevertheless, if ruptured spontaneously or during surgery, it has a poor prognosis due to chemical meningitis. Therefore, it is essential to perform accurate diagnosis and proper treatment. We report an intracranial subdural dermoid cyst that may be misdiagnosed as extracranial or epidural lesion because of extension into the right foramen ovale, and describe the CT and MR imaging findings.
Brain Neoplasms ; Dermoid Cyst* ; Diagnosis ; Foramen Ovale* ; Magnetic Resonance Imaging* ; Meningitis ; Prognosis

No abstract available.
Hydranencephaly*

PURPOSE: To evaluate the efficacy of each phases in two and three phase spiral CT in the detection of pancreatic adenocarcinoma. MATERIALS AND METHODS: Two phase spiral CT images of 18 patients and three phasespiral CT images of 12 patients with pathologically-proven pancreatic ductal adenocarcinoma were retrospectively compared. Using a single spiral scan, images of early and delayed phases were obtained at 43 seconds and 2 ~ 3 minutes respectively initiating the after administration of 100-120 cc of contrast material (2 ~ 3 cc/sec),Images of arterial, portal and delayed phases were also obtained at 25 and 60 seconds, and 3 ~ 4 minutes,respectively, by the use of a double spiral scan. CT scans were performed with 10 mm collimation at 1 : 1 pitchtable speed. Contrast between the tumor and adjacent pancreatic parenchyma were compared and graded and enhancement pattern of the tumor were analysed together. RESULTS: In 12 patients (66.7%), images of the earlyphase were superior to those of the delayed phase. images of the portal phase were superior to those of thearterial phase. Enhancement of tumor was seen in four patients ; all tumors were less than 3cm in size. CONCLUSION: The early phase of two phase spiral CT is superior to the delayed phase and the portal phase of three phasespiral CT is superior to the arterial phase. Both arterial and portal phases are superior to the delayed phase.
Adenocarcinoma* ; Humans ; Pancreatic Ducts ; Tomography, Spiral Computed* ; Tomography, X-Ray Computed

BACKGROUND: Studies in animals suggest that pipecuronium dose not induce hemodynamic chan-ges related to histamine release or to an effect on the autonomic nervous system. Therefore the effects of bolus administration of large doses of pipecuronium, up to 0.20 mg/kg, on the intubation condition, onset and duration of neuromuscular blockade, heart rate and blood pressure were studied during fentanyl- nitrous oxide anesthesia. METHOD: Forty adults were randomly assigned to receive a bolus injection of either 0.05, 0.10, 0.15, 0.20 mg/kg of pipecuronium. Neuromuscular blockade was measured using mechanomyographic activity of the adductor pollicis muscle after supramaximal stimulation of the ulnar nerve. Four subgroups of 10 patients received pipecuronium doses of 0.05, 0.10, 0.15 and 0.20 mg/kg, respectively, as an intubating dose. RESULTS: The times of onset and clinical duration (mean sem) after each dose were as follows: 0.05 mg/kg, 2.98 0.42 and 41.5 2.42 min; 0.10 mg/kg, 1.54 0.06 and 82.9 7.48 min; 0.15 mg/kg, 1.41 0.14 and 124.8 13.1 min; 0.20 mg/kg, 1.12 0.05 and 187.1 12.8 min. The intubation condition, time of onset and duration after doses of 0.05 mg/kg were significantly different from values after the higer doses. The duration was increased with dose-increments. No dose-related changes in heart rate or blood pressure were observed. CONCLUSION: The authors conclude that dose of 0.10 mg/kg and over has good intubation condition clinically and large bolus dose of pipecuronium can be safely used with a significantly prolonged duration of action without hemodynamic change.
Adult* ; Anesthesia ; Animals ; Autonomic Nervous System ; Blood Pressure ; Heart Rate ; Hemodynamics ; Histamine Release ; Humans ; Intubation ; Intubation, Intratracheal* ; Neuromuscular Blockade ; Nitrous Oxide ; Pipecuronium* ; Ulnar Nerve

PURPOSE: Orthostatic proteinuria accounts for the majority of cases of proteinuria that present in childhood or adolescent. This study was conducted to see the prevalence of Nutcracker syndrome (NCS) in children with orthostatic proteinuria using venography. METHODS: Study patients consisted of 23 children with orthostatic proteinuria. The diagnosis of NCS was made by high pressure gradients (> or =4 mmHg) between left renal vein (LRV) and inferior vena cava (IVC) in left renal venography and pressure tracing. RESULTS: Of 23 study patients, the venography showed 12 cases (52%) of typical NCS. Their mean age was 11.5 years (9-14 years). Female predominance (Male:Female=2:10) was noted. In NCS group (n=12), venous pressures of IVC and LRV were 6.50+/-3.34 and 13.21+/-3.53 mmHg, respectively. This pressure gradient between two veins was 6.71+/-2.54 mmHg, which is significantly higher than that of non-NCS group (n=11), 2.17+/-0.94 mmHg (p < 0.05). No positive correlation was observed between urinary protein during 24 hour and pressure gradient (r=0.152, p=0.636). CONCLUSION: NCS may be an important cause of orthostatic proteinuria in children. The prevalence of NCS shown in this study was very similar to that in a doppler sonographic observation published previously. A larger-scale study is necessary to confirm the prevalence.
Adolescent ; Child ; Female ; Humans ; Phlebography ; Prevalence ; Proteinuria ; Renal Veins ; Veins ; Vena Cava, Inferior ; Venous Pressure

Perirenal hematoma after a renal biopsy is a common complication that usually resolves spontaneously, but this rarely requires transfusions or surgical/radiological intervention. We report here on a case of a renal perforating artery that was mistaken for renal arterial bleeding in a 53-year-old woman who was complicated with perirenal hematoma after undergoing a percutaneous renal biopsy. On the color and pulsed wave Doppler ultrasonography, linear blood flow was seen in the perirenal hematoma, which extended perpendicularly from the renal parenchyma into the perirenal space, and this linear blood flow exhibited an arterial pulse wave. On CT angiography, the renal perforating artery was demonstrated as a curvilinear vessel coursing tangentially to the renal margin and we decided that it was a pseudolesion caused by the renal perforating artery. A renal perforating artery may be mistaken for renal arterial bleeding after a percutaneous renal biopsy. A renal perforating artery and arterial bleeding can be differentiated by the location and shape seen on a color Doppler examination and the pulse waves characteristics.
Angiography ; Arteries ; Biopsy ; Female ; Glycosaminoglycans ; Hematoma ; Hemorrhage ; Humans ; Middle Aged ; Ultrasonography, Doppler ; Ultrasonography, Doppler, Color

Primary squamous cell carcinoma is a rare tumor of the stomach with an incidence ranging from 0.04% to 0.4% of all diagnosed gastric cancers. We report a case of squamous cell carcinoma in the stomach associated with hypertrophic gastropathy and observed as a huge mass and wall thickening on the greater curvature site by a multidetector CT.
Carcinoma, Squamous Cell ; Incidence ; Stomach ; Stomach Neoplasms

Background/Aims: Although several studies have shown that sarcopenia is associated with poor outcomes in colorectal cancer patients, the impact of sarcopenia on the development of colorectal neoplasia remains unclear. We aimed to evaluate the prevalence and association of colorectal neoplasia, especially advanced colorectal neoplasia, in adults with sarcopenia. Methods: We retrospectively analyzed the data for 10,676 adults who underwent firsttime colonoscopy and bioelectrical impedance analysis (BIA) on the same day in a health screening program at a single center. Sarcopenia was diagnosed using established BIA-based criteria as adjusted appendicular skeletal muscle mass (ASM) divided by body mass index (BMI) (ASM/BMI), height (ASM/height2), or weight (ASM/weight). Prevalence of overall and advanced colorectal neoplasia and their association with sarcopenia, as established by the aforementioned diagnostic criteria, were evaluated. Results: Among 10,676 subjects, 583 were diagnosed with sarcopenia using ASM/ BMI. Subjects with sarcopenia had a higher prevalence of colorectal neoplasia than those without. In the multivariate analysis after adjusting for confounding factors, sarcopenia was an independent risk factor for any colorectal neoplasia (odds ratio [OR], 1.31; 95% confidence interval [CI], 1.09 to 1.56) and advanced colorectal neoplasia (OR, 1.97; 95% CI, 1.27 to 3.06). The association between sarcopenia and advanced colorectal neoplasia remained significant for all sarcopenia measures including ASM/height2 (OR, 2.19; 95% CI, 1.24 to 3.85) and ASM/weight (OR, 2.41; 95% CI, 1.54 to 3.77). Conclusions Prevalence of overall and advanced colorectal neoplasia was higher in subjects with sarcopenia than in those without. Sarcopenia was a significant risk factor for colorectal neoplasia, especially for advanced colorectal neoplasia.

Ectopic stomal varices are an unusual cause of gastrointestinal hemorrhage. The term "ectopic stomal varices" means abnormally dilated veins that have developed in the stomal mucosa. We describe the 2D reformatted and 3D volume rendered images by MDCT in a patient with an episode of acute bleeding from the colonic stoma. This case indicates that the 2D reformatted and 3D volume rendered images are useful to detect this rare complication of portal hypertension, and they help to tailor adequate treatment for the patients with bleeding from stomal varices.
Varicose Veins/*complications/*radiography/therapy ; Tomography, X-Ray Computed/*methods ; Recurrence ; Male ; Ligation ; Imaging, Three-Dimensional ; Humans ; Gastrointestinal Hemorrhage/*etiology/*radiography/therapy ; *Colostomy ; Aged