An intraosseous epidermal cyst is a rare benign cystic lesion. It is thought to result from congenital factors or trauma and can lead to bone destruction because the cyst develops at the soft tissue around the bone. Radiological findings of intraosseous epidermal cysts are a well-defined radiolucent lesion, with cortical expansion. It is important to differentiate an intraosseous epidermal cyst with other disease developed at distal phalanx because its clinical and radiological findings are similar. We report two rare cases of intraosseous epidermal cysts that developed at the distal phalanx.
Epidermal Cyst*

An intracerebral aneurysm usually bleeds into the subarachnoid space in addition it may also rupture into the subdural space or into the brain, and it is reported that approximately 2-8 percent of all ruptured aneurysm have an associated subdural hematoma. We had experienced 4 cases of subdural hematoma following ruptured intracerebral saccular aneurysm from 1983 to 1985. They were distal anterior cerebral artery aneurysm and middle cerebral artery aneurysm, and 2 cases of anterior communicating artery aneurysm. There were no relationship between the amount of subdural hematoma and clinical course. With a view to the clinical course, 3 cases were acute, and one was chronic.
Aneurysm* ; Aneurysm, Ruptured ; Brain ; Hematoma, Subdural* ; Intracranial Aneurysm ; Rupture ; Subarachnoid Space ; Subdural Space

We reported 3 cases of intestinal anisakiasis. The patients had abdominal pain, nausea or vomiting, after eating raw sea-fishes 1 to 5 days before. Intestinal resection was performed under the impression of mechanical obstruction or cancer. The resected intestines showed marked edema, congestion or hemorrhage in the mucosa. Microscopically the larvae were found in the submucosa or inner muscle layer, and surrounded by phlegmonous inflammation with intense eosinophilic infiltration. The larvae were identified as Anisakis spp. by multiple sections.

At least 90% of oligodendroglioma have developed above the tentorium, especially in the frontal lobe, but the case of oligodendroglioma arising in the 4th ventricle of the posterior fossa is extremely rare, 0.08% of the total of intracranial tumors. It was first reported by Van Bogaert in 1928. We experienced a case of 11-year-old male patient admitted by headache, nausea and visual disturbance. The operation was performed after brain CT scan, vertebral angiography and ventriculography. But the patient died on the 66th hospital day due to generalized infection unfortunately. It was histopathologically diagnosed the primary oligodendroglioma of the 4th ventricle after autopsy.
Angiography ; Autopsy ; Brain ; Child ; Frontal Lobe ; Headache ; Humans ; Male ; Nausea ; Oligodendroglioma* ; Tomography, X-Ray Computed

BACKGROUND: Sometimes hypoxemia occurs in the postoperative recovery room because of postoperative residual curarization (PORC). Some reports show that postoperative residual curarization is common. PORC occurs after the use of the long-acting muscle relaxants. It has been recommended to use intermediate-acting muscle relaxants and a TOF monitor to decrease PORC. The purpose of this study was to examine whether the use of the TOF monitor during propofol anesthesia affects the incidence of postoperative residual curarization. METHODS: 38 ASA I or II patients were divided randomly into two groups of 19 each. They received propofol-fentanyl-nitrous oxide for anesthesia. Pancuronium (80 100 microgram/kg) was used to facilitate tracheal intubation and additional doses were used to maintain surgical relaxation. The requirement for incremental doses of pancuronium and adequacy of recovery following reversal were assessed, either with (control group:n = 19) or without (experimental group:n = 19) TOF monitoring. Fifteen minutes after the arrival at the recovery room, neuromuscular function was assessed clinically and by using TOF. RESULTS: There were no statistical differences in body weight, age, or duration of operation between the two groups. There was no statistical difference in the total dose of pancuronium and total dose of pancuronium relative to body weight and duration of operation. There were statistical differences in TOF ratio in the recovery room (0.73 vs. 0.86). The incidence of PORC was 47% in the control group and 5% in the experimental group. CONCLUSIONS: Though the monitoring of TOF did not effect the dose of muscle relaxant, it may have reduced the incidence of PORC. However, the PORC had no clinical significance because the mean TOF ratio in the two groups was over 0.7 and there were no clinical signs of residual muscle weakness.
Anesthesia* ; Anoxia ; Body Weight ; Humans ; Incidence ; Intubation ; Muscle Weakness ; Pancuronium ; Propofol* ; Recovery Room ; Relaxation

In recent years, digital technology has been developed in dentistry, which denture frameworks can be manufactured using DMLS (Direct Metal Laser Sintering) technique. A traditional impression method can be replaced by oral scanning and wax pattern production process can be achieved by the use of CAD/CAM techniques. The designed STL files can be sent to DMLS devices to fabricate final components of removable partial dentures (RPD). The advantages of digital dentistry are concision and precision. In this case study, a fracture of occlusal rests providing support and indirect retention was repaired by DMLS and laser welding techniques. It shows satisfactory results in adaptation accuracy and functional properties of the repaired denture.

Anatomical changes in the facial and alveolar bones occur after multiple teeth are extracted. In the maxilla, the alveolar bone is absorbed in the direction and inclination of the root, and the remaining alveolar bone becomes shorter, reducing the diameter of the arch. In addition, as the nasolabial angle increases, the support of the lips and the aesthetics of the face are lost. This case reports a functional and aesthetically satisfactory results of full mouth rehabilitation with the implant-supported fixed prosthesis using a zirconia framework.

This study compared the effectiveness of self-propelling diatom microbubblers to clean dental appliances with commercial denture cleaning agents according to the Ministry of Food and Drug Safety’s guidelines. The microbubbler is made by doping diatoms with MnO2 nanosheets that can decompose hydrogen peroxide to generate oxygen bubbles. Artificial saliva is prepared in accordance with the criteria presented by the American Dental Association, dispensed, and dried in 96 well plates. Experimental groups include 10-15% NaOCl (positive control), distilled water (negative control), diatom microbubbler A (Aulacoseira, MnO2-polydopamine (PDA)-A), diatom microbubbler M (Melosira nummuloids, MnO2-sugar (S)-M), Polident (GlaxoSmithKline, Dungarvan, Ireland), Dentfix-forte (Helago-Phama GmbH&Co, Parchim, Germany). After washing, absorbance (OD 600) was measured. If the absorbance was 70% or higher, the condition was determined to have “cleaning power potency,”Statistical significance was evaluated by one-way ANOVA and Bonferroni correction to compare cleaning effects among groups (p<0.05).The average cleaning rates were 93.8±1.0% in NaOCl (positive control) and 79.1±1.5% in distilled water (negative control).With the diatom microbubbler A, the average cleaning rate was 79.8±4.5% in the 3% H 2O 2 2 mg/mL, 64.7±5.5% in 6% H 2O 2 2 mg/mL, and 81.9±7.9% in 6% H 2O 2 4 mg/mL. The diatom microbubbler M group showed average cleaning rates of 88.5±3.6% in 3% H2O2 2 mg/mL, 75.8±4.0% in 6% H2O2 2 mg/mL, and 84.5±4.5% in 6% H2O2 4 mg/mL. Finally, conventional denture cleaning agents showed average cleaning rates of 88.2±1.2% in Polident and 83.3±3.0% in Dentfix-forte. The positive control group had significant differences from all experimental groups, but the negative control group showed significant differences only in A2 and A3, M1 and M2, M3, Polident, and Dentfix-forte (F=190.141, p<0.001). Among all groups except the positive control group, MnO2 -S-M mixed with 3% H2O2 2 mg/mL showed the highest cleaning rate. As the results of this study show, diatom complexes exhibit cleaning effects compatible with conventional denture cleaning agents. Further studies need to be conducted to narrow down the specific optimal conditions of diatom microbubblers and maximize the cleaning effect.

PURPOSE: To evaluate the pathologic changes, apoptosis of chondrocytes, and expression pattern of vascular endothelial growth factor (VEGF) in the growth plate of Spontaneouly Hypertensive Rats (SHR). MATERIALS AND METHODS: Sixty SHRs and thirty Wister Kyoto rats(control, WKYs) were sacrificed at the age of 6, 9, 12, 15 and 18 weeks. SHRs were divided into the groups of [SHR-n] and [SHR+n] according to the evidence of ischemic necrosis of the femoral head. TUNEL assay was done for the investigation of apoptotic changes in the growth plate. VEGF immunohistochemistry was performed to identify the expression of VEGF in the growth plate, epiphysis, and articular cartilage. RESULTS: Apoptosis of growth plate in the groups of SHR was more evident than that of WKY group. VEGF expression in the articular cartilage, epiphysis and growth plate was decreased in the course of normal ossification. VEGF expression in the epiphysis and growth plate was decreased in the groups of SHR, especially in the group of [SHR+n]. Normal expression was found in the articular cartilage of all three groups. CONCLUSION: VEGF was expressed in the growth-dependent manner, and is an essential factor for the longitudinal growth of growth plate and normal ossification.
Animals* ; Apoptosis ; Cartilage, Articular ; Chondrocytes ; Epiphyses ; Growth Plate ; Head* ; Immunohistochemistry ; In Situ Nick-End Labeling ; Models, Animal* ; Necrosis* ; Rats ; Rats, Inbred SHR ; Vascular Endothelial Growth Factor A*