Developmental surface ultrastructure of Macroorchis spinulosus was studied by scanning electron microscopy. One-day-old juvenile fluke was leaf-shaped and bent ventrally. Body surface was covered densely with peg-like spines and with cobblestone-like cytoplasmic processes. Ciliated sensory papillae were concentrated around oral sucker. Several unciliated sensory papillae occurred equidistantly on oral sucker and acetabulum. The ciliated papillae appeared in two longitudinal lines symmetric bilaterally on dorsal surface. On adult flukes, tegumantal spines became wider in middle of the body surface. The cytoplasmic processes differentiated into more fine velvety form. It is likely that the differentiated fine cytoplasmic processes are an increased absorptive surface to adult M. spinulosus. It is suggested that single pointed tegumental spines on anterior half of the body may be supportive for this fluke to migration.
Animals ; Microscopy, Electron, Scanning ; Rats ; Rats, Sprague-Dawley ; Research Support, Non-U.S. Gov't ; Trematoda/*anatomy & histology/*ultrastructure

Five cases of intracranial lipoma diagnosed by MR are presented. MR imaging was performed on a 0.2T permanent unit using T1 weighted, proton density-weighted, and T2 weighted spin echo sequences. In two patients, gadolinium-enhanced T1 weighted image was also obtained. The lipomas were located dorsolaterally to the splenium of the corpus callosum (n=1), inferior to the splenium (n=2), in quadrigeminal plate(n=1) and in the presumed corpus callosum area in the case of agenesis of corpus call?um (n=1). The size and shape of the lipomas were variable. No contrast enhancement was seen in post contrast study. Sagittal T1 weighted image appeared to be the most useful imaging plane for the demonstration of the relationship between the lipoma ad the adjacent normal structures. The Homogenous signal intensity paralleling the fat signal and the characteristic location of the lesion are considered to be helpful in the differential diagnosis from dermoid cyst or teratoma.
Corpus Callosum ; Dermoid Cyst ; Diagnosis, Differential ; Humans ; Lipoma* ; Magnetic Resonance Imaging* ; Protons ; Teratoma

Five cases of intracranial lipoma diagnosed by MR are presented. MR imaging was performed on a 0.2T permanent unit using T1 weighted, proton density-weighted, and T2 weighted spin echo sequences. In two patients, gadolinium-enhanced T1 weighted image was also obtained. The lipomas were located dorsolaterally to the splenium of the corpus callosum (n=1), inferior to the splenium (n=2), in quadrigeminal plate(n=1) and in the presumed corpus callosum area in the case of agenesis of corpus call?um (n=1). The size and shape of the lipomas were variable. No contrast enhancement was seen in post contrast study. Sagittal T1 weighted image appeared to be the most useful imaging plane for the demonstration of the relationship between the lipoma ad the adjacent normal structures. The Homogenous signal intensity paralleling the fat signal and the characteristic location of the lesion are considered to be helpful in the differential diagnosis from dermoid cyst or teratoma.
Corpus Callosum ; Dermoid Cyst ; Diagnosis, Differential ; Humans ; Lipoma* ; Magnetic Resonance Imaging* ; Protons ; Teratoma

No abstract available.
Lymphoma* ; Trachea*

No abstract available.
Arteritis* ; Lupus Erythematosus, Systemic* ; Nephritis*

Acoustic stimulation test(AST), is currently being used as an alternative tool of nonstress test (NST). However, there are no standard guideline for analysis of AST. Computerized numerical analysis of AST would be helpful for development of diagnostic criteria of AST. Fifty-one normal pre-term pregnancies entered to this study after conventional 20-minutes NST and 10-minutes AST. Acoustic stimulations were performed using Fetal Acoustic Stimulator (Model 146, Corometrics, US). We analyzed the FHR response after acoustic stimulation using our on-line computerized FHR analysis system, HYFM-I & II software. The changes of loss of signal, baseline FHR, variability, number of fetal movements, and number of FHR accelerations were analyzed numerically. The loss of signal was increased about 2 fold(122.61%). The baseline FHR was increased from 144.57bpm to 156.81bpm(8.5%) after acoustic stimulation. Number of fetal movements was increased about 2 fold(from 2.1 to 4.12/10 minutes). FHR variability was also increased from 17.81 bpm to 26.37 bpm. After AST, number of FHR accelaration was increased 55.47%(10sec 10bpm) and 68.42%(15sec 15bpm), respectively. In this study, we acrumulated elemental FHR data using computerized system after AST. These data would be helpful in the accurate analysis of AST and also enable us to develop the objective interpretation system for AST.
Acceleration ; Acoustic Stimulation* ; Acoustics* ; Female ; Fetal Heart* ; Fetal Movement ; Heart Rate, Fetal* ; Pregnancy ; Pregnancy*

No abstract available.
Stomach Neoplasms*

High-voltage electrical burns are associated with deep muscle injuries. A hidden, deep muscle injury has no specific clinical manifestations, and undetected muscle injury sometimes leads to septisemia or major amputations. From January to December 1996, 52 burned patients were admitted to the burn center. We evaluated their laboratory findings and the results of diagnostic tools. The items of study were urine, EKG, CK-MB, CPK, LDH, SGOT, SGPT, PYP scanning, Plethysmography, and arteriography. The presence of myoglobinuria and the increase in SGOT and SGPT two weeks after the injury were related to the extent of the burns. The PYP scanning was a very sensitive and useful tool for detecting hidden muscle injuries. The arteriographic findings were unsatisfactory for deciding the amputation level. The PCR findings converting to obstructive type were helpful in predicting possibile amputations.
Alanine Transaminase ; Amputation ; Angiography ; Aspartate Aminotransferases ; Burn Units ; Burns* ; Electrocardiography ; Humans ; Myoglobinuria ; Plethysmography* ; Polymerase Chain Reaction ; Radionuclide Imaging*

No abstract available.
Animals ; Cloning, Molecular* ; Interleukin-2* ; Mice*

A randomized, prospective study was conducted between October, 1994 and April, 1996 to compare the efficacy and safety of warfarin (group I) with dextran (group II) for the prevention of DVT after hip arthroplasty. 109 cases in 106 patients were included in the study. There were 60 cases in group I and 49 cases in group IL Risk factor for DVT were analysed before surgery and prophylactic modalities were performed. Color doppler was performed to all patients by one muskuloskeletal radiologist on 5th 8th post operative day and on 6 weeks after operation. DVT occurred in ten ( 16.6% ) of the 60 patients in group I, six ( 12.2% ) of the 49 patients in group II. but, this difference was not significant ( p= 0.582 ). Statistical analysis for the risk factors of age, sex, operation time, anesthetic method and operation method were performed and there were no statistical difference. Only statistical significance was a higher rates of DVT in cemented hip arthroplasty (p=0.028). There were seven proximal thigh DVT and nine calf DVT. We confirmed with sequential color doppler image that all cases of DVT except two complicated cases were resolved within 8 weeks after treatment: one case was expired for the reason of PE, and the other case had thigh hematoma during the treatment with warfarin. We could detect only one case of late onset DVT.
Arthroplasty* ; Dextrans ; Hematoma ; Hip* ; Humans ; Prospective Studies ; Risk Factors ; Thigh ; Venous Thrombosis* ; Warfarin