Osteochondroma is one of the most common benign tumor. But, intraarticular occurrence is very rare. This tumor have been thought not a true neoplasm hut a developmental malformation or harnartoma. The authors experienced a case of intaarticular osteochondroma arising from inferior pole of pateUa, projecting into the infrapatellar fat pad. The tumor was excised surgically, and symptoms were relieved.
Adipose Tissue ; Knee ; Osteochondroma* ; Patella*

BACKGROUND: Resistance to epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs), such as gefitinib, is a limited factor in the treatment of non-small-cell lung cancer (NSCLC) patients. Therefore, ongoing studies are trying to identify EGFR-TKIs-resistant mechanisms and to discover novel therapeutic strategies and targets for NSCLC treatment.METHODS: In the present study, the possibility of overcoming intrinsic gefitinib-resistance was examined by regulating the expression of AXL. A natural product-derived antitumor agent, yuanhuadine (YD) was employed to modulate the expression of AXL in the cells.RESULTS: Treatment with YD effectively downregulated AXL expression in AXL-overexpressed gefitinib-resistant H1299 cells. The combination of gefitinib and YD exhibited a synergistic grwoth-inhibitory activity in H1299 cells by downregulation of AXL expression.CONCLUSIONS: Based on these findings, AXL was found to be a promising therapeutic target to overcome the intrinsic resistance to gefitinib in NSCLC. Furthermore, YD is able to effectively regulate the expression of AXL and thus it may be applicable as a potential lead compound for the treatment of gefitinib-resistant NSCLC.
Carcinoma, Non-Small-Cell Lung ; Down-Regulation ; Drug Resistance ; Humans ; Lung Neoplasms ; Protein-Tyrosine Kinases ; Receptor, Epidermal Growth Factor

No abstract available.
Hair* ; Microscopy, Electron

With the industrial development, vehicle, wars, and natural disasters, there are increasing chsnces of mass casuaities, it is very important to classify the injured patients by their severity, to give them immediate emergency care and to transfer them to the other medical facilities effectively. And it is more essential in the army. But in practice, there is no objective and comprehensive scale for injury severity yet. So we devised a method of comprehensive description for the injuredpatients. It is based on Abbreviated Injury Scale and Injury Severity Score and is composed of five parts of the body (General, Head & Neck, Chest, Abdomen, Extremities) and five degrees of severity (Grade I, Il, III, IV, V). For example, a description of a patient with multiple injuries such as generalized abrasion and cotusion, semicomatose mentality with skull fracture, hemoperitoneum, and fracture of right femoral shaft is very diffcult to understand quickly. But, with our method of description, the above is described as follows ; G(I)+(IV)+A (IV)+E(III), ISS =4+4+3 =41. And the high score is described as ISS makes it clear that the patient is very dangerous, even to death, so intensive care is immediately needed. Using this method, we reviewed 1,256 cases of passenger acidents of vehicles treated at our hospital during the last 2 years. The results were as follows ;1. The average ISS of 56 cases of dead is 33. 2. There are only 2 cases of death below 16 of ISS, and 84% mortality above 40 of ISS. 3. The average ISS of passengers in vehicles such as motocycles is 12, taxies 11, bongo 9, and buses 8. 4. We recommend our method of description for mass casualties, especially in the army. Because it is very useful to the injured patients by their severity, to give them immediate emergency care, to transfer them to the other medical facilities and to comprehend the whole condition of all patients.
Abbreviated Injury Scale ; Abdomen ; Critical Care ; Disasters ; Emergency Medical Services ; Head ; Hemoperitoneum ; Humans ; Industrial Development ; Injury Severity Score ; Mass Casualty Incidents ; Methods ; Mortality ; Motor Vehicles ; Multiple Trauma ; Neck ; Skull Fractures ; Thorax

Background: Dental caries prevention is a key research focus in dentistry, requiring advancements in the formulation of dental sealants. This study investigated the physical and antibacterial attributes of dental sealant enriched with phytoncide. Methods: Phytoncide was mixed with a commercially available dental sealant (Clinpro) at concentrations of 0 (control), 1.5%, 3%, and 4.5% by weight (wt%). The flexural strength, curing depth, and wettability of the dental sealant were measured. Antibacterial properties against Streptococcus mutans were evaluated through the enumeration of colony-forming units. Statistical analyses employed one-way variance analysis followed by Tukey’s test (p＜0.05). Results: The dental sealant containing 3% phytoncide showed no significant difference in flexural strength and curing depth compared with that in the control group (p＞0.05). The flexural strength and curing depth decreased with increasing phytoncide content and significantly differed in sealant containing 4.5 wt% phytoncide (p＜0.05). Wettability did not differ between the experimental and control groups (p＞0.05). The antibacterial properties of the sealant containing 1.5% phytoncide were the same as those of the control group (p＞0.05). The bacterial viability was significantly reduced in groups containing 3% and 4.5% phytoncide compared with that in the control group (p＜0.05). Conclusion Dental sealants incorporating phytoncide have a promising potential as antibacterial dental materials.

Purpose: The purpose of this study was to study the effects of the utilization of ethanol solution in infection control of dental implant hand drivers, a common practice in dental prosthodontic clinics. Materials and Methods: Infection control methods were divided into two groups. One swabbed with 83% ethanol gauze and the other immersed in 83% ethanol solution for 30, 60, 90, 120, 150, 180 and 300 second intervals after inoculation of the dental implant hand drivers with Staphylococcus aureus. After measuring the number of colony forming units and analyzing the optical density, the effects of infection control in the experimental group were compared with the positive control group without infection control after inoculation with bacteria and the negative control group without inoculation with bacteria after sterilization. Results: The number of colony forming units and optical density analysis showed a statistically significant difference compared to the positive control. On the other hand, there was no statistically significant difference between the negative control and the group immersed in the 83% ethanol solution for more than 150 seconds. Conclusion It is recommended to use the ethanol solution as a pre-cleaning process before sterilization, since the intermediatelevel disinfection method using ethanol solution alone for the infection control of the dental implant hand driver cannot clinically secure the sterility.

Mucosal spreading of urothelial tumors to the seminal vesicles is very rare. We experienced a case of mucosal involvement of the seminal vesicles by a bladder tumor in a 72-year-old man. The patient had a history of transurethral resection for invasive urothelial carcinoma of the bladder 8 years previously. Radical cystoprostatectomy was performed owing to recurrent and multiple urothelial carcinoma in situ. Microscopically, the urothelial carcinoma in situ was throughout the mucosa of the urinary bladder, both ureters, the prostate, and the left seminal vesicle. To date, the implication of mucosal involvement of the seminal vesicles by urothelial carcinoma is unclear. However, careful microscopic examination is needed to avoid an erroneous diagnosis.
Aged ; Carcinoma in Situ ; Humans ; Mucous Membrane ; Prostate ; Seminal Vesicles ; Ureter ; Urinary Bladder ; Urinary Bladder Neoplasms

In patients with dermatomyositis, chronic inflammation of the pharynx and esophagus results in coughing and difficulty in swallowing. These become important clinical symptoms, especially if they contribute to malnutrition or aspiration pneumonia. They can ultimately reduce the quality of life. In rare cases, if the symptoms worsen despite proper treatment, serious complications may arise, a reason to suspect an esophageal perforation or abscess. The authors report a case of dermatomyositis in an adult patient with rare complications of spontaneous esophageal perforation and hypopharyngeal abscess. The patient received non-surgical treatment and was able to resume oral intake of food.
Abscess* ; Adult* ; Cough ; Deglutition ; Dermatomyositis* ; Esophageal Perforation* ; Esophagus ; Humans ; Hypopharynx ; Inflammation ; Malnutrition ; Pharynx ; Pneumonia, Aspiration ; Quality of Life

Palisaded encapsulated neuroma (PEN) is a distinctive benign cutaneous tumor that was first described by Reed et al. in 1972. We have recently experienced two cases of PEN. Clinically, these lesions were asymptomatic, flesh-colored or reddish brown papules or nodules. Light microscopy revealed several lobulated, partially encapsulated dermal tumors composed of interlacing Schwann cell fascicles. In some areas, palisading of nuclei was observed, but this was not characteristic. On Bodian staining, moderate to large numbers of tiny axons were observed. Electron microscopy demonstrated many myelinated axons incompletely invested by Schwan cell cytoplasm.
Axons ; Cytoplasm ; Microscopy ; Microscopy, Electron ; Myelin Sheath ; Neuroma*

Three-types of expandable metallic stents were constructed to evaluate the differences between the stents : one, formed in a cylindrical zigzag pattern with stainless steel wire (Gianturco stent), another, made by coating the Gianturco stent with silicone rubber(Silicone stent), the third, made by coating the Gianturco stent with 24 carat gold(God stent) for tissue acceptance. A total of 69 stents(each 23 stents of Glanturco, Silicone, and Gold stents) of 8-12 mm in diameter and 20 mm long were placed into normal abdominal aorta, inferior vena cava and iliac artery of nine adult dogs for 2 weeks to 11 months. It was more difficult to introcuce Silicone stent into an introducing sheath than Gianturco or Gold stent due to the thickness of silicone rubber, Four Gianturco stents and three Silicone stents showed migration but Gold stent did not. Luminal narrowing or occlusion was noted in 3 Silicone stents, in 2 Gianturco stents, and in 1 Gold stent. Neointimal proliferation over the stent wires was more rapid and even in God stent than Silicone or Gianturco stent. Although further study is needed, Gold stent seems to be better than Gianturco or Silicone stent as an endovascular graft material.
Adult ; Animals ; Aorta, Abdominal ; Dogs* ; Humans ; Iliac Artery ; Phenobarbital ; Silicon ; Silicone Elastomers ; Silicones ; Stainless Steel ; Stents* ; Transplants ; Vena Cava, Inferior