Supernumerary tooth, named mesodens, occur between the maxillary central incisors are generally found in pairs, although it is sometimes found singly. An inverted mesiodens may move toward the nasal cavity and erupt in the floor of the nose. Approximately 90% of all supernumerary tooth usually appear in the area of the maxilla, where they disrupt the position and eruption of normal teeth. A supernumerary tooth may closely resemble the teeth of the group to which it belongs, i.e., molars, premolars or anterior teeth.
Bicuspid ; Incisor ; Maxilla ; Molar ; Nasal Cavity* ; Nose ; Tooth ; Tooth, Supernumerary*

PURPOSE: The changes in the levels of eicosanoids and isoprostane (8-iso-PGF2alpha) were investigated in brain tissue of 7 day-old rats after hypoxic-ischemic (HI) injury. METHODS: The 7 day-old newborn rats underwent right unilateral common carotid artery ligation followed by exposure to hypoxia with 8% oxygen for 150 minutes. There after, the pups were decapitated during reoxygenation 21% period of 0, 1, 6, 24, and 72 hours and their cerebral hemisheres were dissected through sagittal plane. Ipsilateral and contralateral cerebral hemesheres to common carotid artery ligation were used to determine the water content for estimation of severity of brain edema (n=5) and to measure the levels of eicosanoid and isoprostane (n=7). The levels of 6-keto-PGF1alpha, TXB2, and PGE2 were measured by RP-HPLC (reversed-phase high-performance liquid chromatography) and the levels of isoprostane (8-iso-PGF2alpha) were measured by enzyme immunoassay. The changes of eicosanoid and isoprostane levels during reoxygenation period were observed and comparisons between ipsilateral and contralateral hemispheres were done. RESULTS: The edema of ipsilateral cerebral hemesheres to common carotid artery ligation was more severe than that of contralateral cerebral hemisheres (P<0.05). The levels of 6-keto-PGF1alpha, TXB2, and PGE2 were found to increase during the early period of reoxygenation after HI insult, peak at 1 hour, and then decrease to the control levels at 72 hour (P<0.05). But, the levels of 8-iso-PGF2alpha did not significantly increase during the period of reoxygenation. The levels of 6-keto-PGF1alpha, TXB2, and PGE2 of ipsilateral hemispheres had a tendency to be higher than those of contralateral hemispheres during the initial 6 hour reoxygenation period, but the levels of 8-iso-PGF2alpha of ipsilateral hemispheres were significantly higher than those of contralateral hemispheres during the relatively later reoxygenation period (P<0.05). CONCLUSION: Reoxygenation after hypoxic-ischemic injury increased the levels of 6-keto-PGF1alpha, TXB2, and PGE2 in 7 day-old rat brain during the early period of reoxygenation, but the levels of isoprostane (8-iso-PGF2alpha) were not significantly increased during the reoxygenation period after HI injury.
Animals ; Anoxia ; Brain Edema ; Brain* ; Carotid Artery, Common ; Dinoprostone ; Edema ; Eicosanoids* ; Humans ; Immunoenzyme Techniques ; Infant, Newborn* ; Ischemia ; Isoprostanes* ; Ligation ; Oxygen ; Rats*

Thoracoscopic sympathectomy is a common technique used to treat plamar hyperhiodrosis. The complications of thoracoscopic sympathectomy are rare. Recently, we experienced a complex regional pain syndrome(CRPS) after thoracoscopic sympathecotomy in a patient with hyperhidrosis. The treatment of this complication was chemical epidural sympathetic block and conservative pain control. The result of this treatment was good. The patient was recovered after one month.
Humans ; Hyperhidrosis* ; Pain, Postoperative ; Sympathectomy* ; Thoracoscopy

To observe the characteristics of the posterior aortic wall motions of the patients with various valvular heart diseases the aortic root echocardiogram of the 60 patients with various valvular diseases were examined. 15 cases in each group of patients with mitral stenosis, mitral insufficiency, mitral stenoinsufficiency or aortic insufficiency. Thirty normal subjects were served as a control group. In each, the total amplitude of the aortic posterior wall motion(OV), the amplitude of the motion evented at atrial systole(AV), AV/OV ratio, atrial emptying index(AEI), left atrial and aortic root dimensions (LAD and AOD), and LAD/AOD were measured. The results were as follows ; 1) The AV was significantly increased in mitral stenosis(P<0.01) and decreased in mitral insufficiency(P<0.05) compared with control group. 2) The OV was increase in mitral insufficiency and aortic insufficiency(p<0.01, p<0.05), but decreased in mitral stenosis(p<0.05). 3) The AV/OV was increased in mitral stenosis(p<0.01) and decreased in mitral insufficiency and aortic insufficiency(p<0.01). 4) The AEI was decreased in all patient groups(p<0.01) and LAD was increase in all compared with control group(p<0.01). 5) The AOD was increased only in aortic insufficiency(p<0.01). 6) The LAD/AOD ratio was increased in all patient groups(p<0.01).
Heart Valve Diseases* ; Humans ; Mitral Valve Insufficiency ; Mitral Valve Stenosis

Primary metabolic myopathy as a type of congenital myopathies was first described by McArdle in 1951. Glycogen storage disease is a disease caused by genetic mutations involved in glycogen synthesis, glycogenolysis or glycolysis. Several types of glycogen storage disease are known to cause metabolic myopathies. We report a case of adult onset metabolic myopathy with glycogen storage.
Adult* ; Glycogen Storage Disease ; Glycogen* ; Glycogenolysis ; Glycolysis ; Humans ; Muscular Diseases*

BACKGROUND: Reactive oxygen species (ROS) contribute to development of neuropathic pain. A neuropathic pain syndrome was produced in rats following prolonged hindpaw ischemia/reperfusion injury, creating an animal model of complex regional pain syndrome-Type I (CRPS-I). This study was designed to evaluate the validity of this model for ROS and pain research. Herein we show superoxide produces N-methyl-D-aspartate (NMDA) mediated mechanical allodynia. METHODS: Male adult SD rats were used for neuropathic pain model. Plasma superoxide production rates of before ischemia (BI) and 5 min after reperfusion (JR) were measured via cytochrome C reduction in the presence of xanthine (without xanthine oxidase, kinetics, 550 nm). Mechanical allodynia was measured in both hindpaws. Activation of NMDA receptor subunit 1 (P-NR1) of lumbar spinal cord (L4-L6) in accordance with the change of allodynia was analyzed by the Western blot. RESULTS: Allopurinol-inhibitable, xanthine oxidase-mediated plasma superoxide production was increased at AR. Mechanical allodynia was present in both hindpaws as early as 1 hr after reperfusion, and lasted at least 1 week. The expression of P-NR1 was the highest at 3 days after reperfusion when the withdrawal threshold was the lowest point. SOD significantly blocked P-NR1 activation. CONCLUSIONS: This study suggests that ischemia/reperfusion injury induced neuropathic pain model is a good candidate for the research fields of ROS and pain mechanism. The generation of ROS, especially superoxide is partly responsible for NMDA-mediated mechanical allodynia.
Adult ; Animals ; Blotting, Western ; Central Nervous System Sensitization ; Cytochromes c ; Hindlimb ; Humans ; Hyperalgesia ; Ischemia ; Kinetics ; Male ; Models, Animal ; N-Methylaspartate ; Neuralgia ; Plasma ; Rats ; Reactive Oxygen Species ; Reperfusion ; Spinal Cord ; Superoxides ; Xanthine ; Xanthine Oxidase

PURPOSE: The mortality and morbidity rate after pancreaticoduodenectomy (PD) is still high, although the operative techniques and skills and the perioperative care has been improved. The incidence of PD for benign disease is 5~20%. The aim of this study is to determine the factors that differentiate between the benign group and the malignant group by comparing the clinical manifestations, and we studied the safety of performing PD for benign diseases by observing the early and late postoperative complications. METHODS: We retrospectively studied 124 patients who had been diagnosed with benign or malignant pancreatic diseases and who underwent PD between April 1995 and December 2005. We divided the patients into two groups, i.e., the benign group (20) and the malignant group (104), to compare their clinical characteristics and postoperative outcomes. Result: Chronic pancreatitis was the most common disease (35%) in the benign group and distal CBD cancer was the most common disease (40.4%) in the malignant group. Jaundice, weight loss, and elevation of CA 19-9 were more frequent in the malignant group than in the benign group (p<0.05). There were no statistical differences in the mortality rate (10.0% vs 6.7%), reoperation rate (5.0% vs 4.8%), hospital stays (27.1 days vs 24.0 days), early complications (30.0% vs 44.6%) and late complications (22.2% vs 26.4%) between the two groups. There were no mortality and newly developed malignancy during 33.4 months of follow-up period in benign group. CONCLUSION: On the preoperative evaluation, jaundice, weight loss, and elevation of CA 19-9 were more frequent in the malignant group. The postoperative early and late complications showed no difference between the two groups and complication rate was generally favorable. Thus, PD can be performed safely for benign diseases that cannot be treated in a conservative fashion and also for other clinically suspicious malignant diseases.
Follow-Up Studies ; Humans ; Incidence ; Jaundice ; Length of Stay ; Mortality ; Pancreatic Diseases ; Pancreaticoduodenectomy* ; Pancreatitis, Chronic ; Perioperative Care ; Postoperative Complications ; Reoperation ; Retrospective Studies ; Weight Loss

BACKGROUND: Autosomal dominant nocturnal frontal lobe epilepsy (ADNFLE) is a distinct epilepsy syndrome and a genetically heterogeneous disorder linked to chromosomes 20q13.2, 15q24, and 1p21. Missense and insertion mutations in neuronal nicotine acetylcholine receptor 4 (CHRNA4) and 2 (CHRNB2) genes have been found in families with ADNFLE. METHODS: Clinical, EEG-Video monitoring, and neuropsychologic study in a family with ADNFLE were tested. For detect of mutation gene, polymerase chain reaction for CHRNA4 gene and CHRNB2 gene, single strand conformational polymorphism (SSCP) analysis and DNA sequencing were done. RESULTS: Among 15 living family members in three generations, nine had seizures. EEG-Video monitoring showed ictal epileptiform discharges genetically or regionally in frontal, frontocentral, frontotemporal, or temporal areas and less frequently no epileptiform discharges or non-specific generalized slowing. Two affected individuals demonstrated interictal temporal spikes, whereas the others were normal. Neuropsychological study showed mental retardation and decreased frontal executive function in five affected individuals. A cytosine to thymine exchange (755C>T; S252L) in exon 5 of the CHRNA4 gene was found on all affected individuals except in an individual who wasn 't tested, but this change was absent in those without epilepsy. CONCLUSIONS: This is the first study of genetically confirmed ADNFLE in a Korean family, who had mental retardation and various EEG abnormalities, ictally and interictally.
Acetylcholine ; Cytosine ; Electroencephalography ; Epilepsy ; Epilepsy, Frontal Lobe* ; Executive Function ; Exons ; Family Characteristics ; Frontal Lobe* ; Humans ; Intellectual Disability ; Mutagenesis, Insertional ; Neurons ; Nicotine ; Polymerase Chain Reaction ; Seizures ; Sequence Analysis, DNA ; Thymine

In hyperthyroidism, many patients had neuromuscular symptoms and clinical weakness correlated with free thyroxine (T4) concentrations. The common clinical symptoms of chronic thyrotoxic myopathy were characterized by progressive weakness in proximal muscles and atrophy. A 55-year old woman was visited our hospital with two years of progressive weakness of both legs. Physical examination showed diffuse enlargement of the thyroid gland, muscle atrophy and tachycardia. Motor examination showed proximal weakness in both legs. Serum creatine phosphokinase was normal and electromyography showed a myopathic pattern. Serum thyroxine (T4) was greatly increased and serum thyroid stimulating hormone was very low. Muscle biopsy showed mild atrophic change and type 2 fiber predominance. The patient's symptoms were improved during treatment with methimazole. Herein we report a case of thyrotoxic myopathy with extreme type 2 fiber predominance histologically.
Atrophy ; Biopsy ; Creatine Kinase ; Electromyography ; Female ; Humans ; Hyperthyroidism ; Leg ; Methimazole ; Muscles ; Muscular Atrophy ; Muscular Diseases ; Physical Examination ; Tachycardia ; Thyroid Gland ; Thyrotropin ; Thyroxine

Paraneoplastic neurologic syndrome is a group of assorted disorders resulting from damage to the nervous system in cancer, remote from primary site, and not related to metastasis, infection, or metabolic disorder associated with cancer. Patient with small cell lung cancer sometimes shows various neurological syndromes, but patient with non-small cell lung cancer rarely shows neurologic syndromes and few antineuronal antibodies have been found. Here, we report a case of 53-year-old male patient who developed ptosis and extraocular muscular limitation of left eye due to third and forth cranial nerve palsy in non-small cell lung cancer without brain metastasis. These neurologic symptoms improved after lobectomy without any other treatment immunotherapy.
Antibodies ; Brain ; Carcinoma, Non-Small-Cell Lung ; Cranial Nerve Diseases ; Cranial Nerves ; Eye ; Humans ; Immunotherapy ; Male ; Middle Aged ; Neoplasm Metastasis ; Nervous System ; Neurologic Manifestations ; Paraneoplastic Syndromes ; Paraneoplastic Syndromes, Nervous System ; Small Cell Lung Carcinoma