No abstract available.

PURPOSE: The purpose of this study is to describe Magnetic Resonance(MR) findings of two epidural cavernous malformations of the spine. MATERIALS AND METHODS: MR imaging was performed in 2 patients(29-year-old man and 54-year-old woman). Sagittal T1 -, T2-weighted images and Gadolinium (Gd)-enhanced axial and sagittal images were acquired. Two patients had surgery and MR findings were compared with surgical and histopathological findings. RESULTS: MR imaging showed high- and low-signal intensity components of these lesions that were characteristic of an epidural cavernous malformation in one case. The other case showed a high signal intensity on T2- and strong enhancement on Gd-enhanced T1 -weighted images. We think that the former may be due to mixed subacute and chronic hemorrhage and the latter may be due to blood within the endotheliumlined sinusolds without hemorrhage. CONCLUSION: These findings were well correlated with the surgical and histo-pathological findings of cavernous malformation.
Gadolinium ; Hemorrhage ; Humans ; Magnetic Resonance Imaging* ; Middle Aged ; Spine*

A case of multiple hamartomas of the unilateral chest wall in a four month old infant is presented. There have been a few reports on the CT findings of the chest wall hamartoma in infancy. We describe bone changes of the ribs and mineralization of this rare tumor on the CT scan, and the locations of two separate masses.
Hamartoma ; Humans ; Infant ; Miners ; Ribs ; Thoracic Wall* ; Thorax* ; Tomography, X-Ray Computed

No abstract available.
Magnetic Resonance Imaging*

Backgroud: In one-lung ventilation using the left-sided double-lumen tube (LDLT), it is important to place the LDLT in correct position to maintain adequate ventilation. We investigated the frequency of and the factors affecting the LDLT malposition in endotracheal intubation. Methods: Ninety one (55 male and 36 female) patients were observed. After endotracheal intubation, using 35 and 37 Fr. sized Robertshaw type LDLT, auscultation and fiberoptic bronchoscope were performed to make sure the correct position of LDLT. The heights, weights, age, and sex were noted. The lengths and diameters of trachea, and the angles and diameters of both bronchi on chest x-ray were measured for comparison. Results: Normal in auscultation and gross malposition were 87.9% and 12.1%. Among those normal in auscultation, normal in bronchoscope, advancing and removing fine malposition were 66.2%, 18.8% and 15.0%, respectively. The angle of left bronchus is 37.71+/-4.60degrees in normal in ausculation and 37.71+/-4.60degrees in gross malposition. The length of trachea is 13.41+/-0.90 cm in normal in bronchoscope, 14.49+/-0.78 cm in advancing fine malposition and 11.86+/-0.35 cm in removing fine malposition. The patient's height is 167.27+/-7.12 cm in normal in brochoscope, 172.45+/-6.67 cm in advancing fine malposition and 163.12+/-6.54 cm in removing fine malposition. Conclusions: The angle of left bronchus is a factor affecting gross malposition. And the length of trachea and the patient's height are factors affecting fine malposition. Thus it is necessary to obtain in advance information on patient's height, length of trachea and angle of left bronchus on chest x-ray, to reduce the occurrence of the LDLT malposition.
Auscultation ; Bronchi ; Bronchoscopes ; Humans ; Incidence* ; Intubation, Intratracheal ; Male ; One-Lung Ventilation ; Thorax ; Trachea ; Ventilation ; Weights and Measures

Two cases of iatrogenically induced false aneurysm of the superficial temporal artery are presented. One patient showed partially filled aneurysmal sac, 1x1 cm sized, on the main trunk of left superficial temporal artery by external carotid artery angiography. Another patient showed aneurysmal dilatation, 3x2 cm sized, of the superficial temporal artery with direct injection of Urograffin into the pulsatile mass. Aneurysm excision is indicated to reduce the risk of hemorrhage from the subsequent head trauma, to relieve headache, and for any cosmetic defect. The authors have reviewed the literature and discussed the incidence, classification, pathogenesis, clinical and angiographic diagnosis, differential diagnosis, and treatment.
Aneurysm ; Aneurysm, False* ; Angiography ; Carotid Artery, External ; Classification ; Craniocerebral Trauma ; Diagnosis ; Diagnosis, Differential ; Dilatation ; Headache ; Hemorrhage ; Humans ; Incidence ; Temporal Arteries*

No abstract available.
Leukemia, Hairy Cell*

PURPOSE: To evaluate the ability of percutaneous ethanol ablation in the treatment of benign cysts of the liver and kidney, and to decide the need and the time of retreatment when the cysts remain on the follow-up ultrasonogram. MATERIALS AND METHODS: Twenty benign cysts(8 hepatic and 12 renal cysts) in 18 patients diagnosed or confirmed either by ultrasound, CT or cytology were treated with percutaneous ethanol injection(PEI). After evacuation of cystic fluid, 15-900ml(amount corresponding to 40-50% of the volume of aspirated fluid) of absolute ethanol(99.9%) was injected into the cysts through the aspiration catheter. rln large cysts, two or more PEIs were done in one session. Follow-up ultrasonographic studies during the period of 12 months with 1-2 months interval after PEI were performed for evaluation of the therapeutic effect. RESULTS: Nine cysts(45%) disappeared completely within 2 months after initial PEI. Although 11 cysts(55.5%) recurred 2 months after initial PEI, 8 of them disappeared within 6 months and one within 8 months after inital PEI without additional PEI. As a result, 18 of 20 cysts(90%) disappeared within 8 months after initial PEI and most of the recurrent cysts disappeared within 6 months without additional PEI. No major complications were encountered concerning PEI, although transient abdominal pain, elevation of body temperature, and drowsiness were noted in 8 patients. CONCLUSION: PEI is an effective and safe modality for the treatment of benign hepatic or renal cysts and the apparent recurrence within 6 months after initial PEI might be mostly a transient, reactive or inflammatory fluid collection rather than real recurrence.
Abdominal Pain ; Ameloblastoma* ; Ameloblasts ; Body Temperature ; Catheters ; Dentigerous Cyst ; Ethanol* ; Follow-Up Studies* ; Humans ; Kidney ; Liver ; Lung ; Magnetic Resonance Imaging* ; Neoplasm Metastasis ; Recurrence ; Retreatment ; Retrospective Studies ; Sleep Stages ; Tooth, Unerupted ; Ultrasonography

Aortic pseudoaneurysms are rare. When aortic pseudoaneurysms are detected, they demand timely surgical intervention because they trend to increase in size and cause complications. We experienced a rare case of a chronic traumatic pseudoaneurysm located at the distal descending aorta associated with chest pain during trans-urethral resection of the prostate under spinal anesthesia. Diagnostic testing led to appropriate management.
Anesthesia, Spinal ; Aneurysm, False* ; Aorta, Thoracic ; Chest Pain* ; Diagnostic Tests, Routine ; Prostate* ; Thorax*

BACKGROUND: This study was undertaken to analyze the necessity of deflating cuff volume to maintain intracuff pressure of the laryngeal mask airway (LMA) under 44 mmHg in general anesthesia with propofol and N2O. METHODS: In 168 surgical patients, LMA was inserted (male: #5, female: #4) and the cuff was sealed with air under positive pressure ventilation with 7-8 ml/kg of tidal volume. After measuring the initial intracuff pressure (P0), the intracuff volume (V0) of LMA and peak inspiratory pressure (PIP0), N2O (50%) was administered, and the time for the intracuff pressure to reach a pressure of 44 mmHg (T44), the intracuff volume for the intracuff pressure to reduce to P0 (Vdef), the N2O inhaled time and the number of patients who needed deflation were recorded. RESULTS: P0, V0, PIP0 were 24+/-7.5 mmHg, 17+/-2.8 ml, 13+/-3.8 cmH2O in males and 27+/-8.2 mmHg, 14+/-2.3 ml, 13+/-4.0 cm H2O in females, respectively. The number of patients who needed cuff deflation after inhaling N2O was 17 (18.5%) in males and 36 (47.4%) in females. T44 and Vdef were 27+/-16 min, 1.9+/-0.8 ml in males and 26+/-21 min and 1.3+/-0.6 ml in females, respectively. The necessity for LMA cuff deflation was related to P0, V0, and the N2O inhaled time in males and to P0 and the N2O inhaled time in females (P <0.05). CONCLUSIONS: In anesthesia with N2O, if the initial intracuff pressure of LMA is high and the duration of anesthesia prolonged, careful monitoring of the intracuff pressure is necessary.
Anesthesia ; Anesthesia, General ; Female ; Humans ; Inhalation ; Laryngeal Masks* ; Male ; Nitrous Oxide ; Positive-Pressure Respiration ; Propofol ; Tidal Volume