Nasopharyngeal angiofibroma is a relatively rare, but is a well known tumor that occurs almost in male, most frequently during the adolescent stage. Its character is histologically benign but clinically malignant because of locally invasive character to the adjascent structures, massive bleeding tendency during surgical procedure and high recurrence rate after treatment. Recently many advancements diagnostic method and surgical technique has reached satisfactory result in treating this difficult tumor. The authors present a case of nasopharyngeal angiofibroma in 16 years old male patient, who was received surgical removal of the tumor through the transpalatal approach after full diagnostic evaluation and preoperative hormonal therapy.
Adolescent ; Angiofibroma* ; Hemorrhage ; Humans ; Male ; Methods ; Recurrence

No abstract available.
Keloid* ; Recurrence*

No abstract available.
Aged* ; Femur* ; Humans ; Osteoporosis*

Double-contrast arthrography of the knee, that is roentgenographic examination of the supporting structures of the knee joint with the aid of the radiopaque dyes, has been utilized infrequently until recent years in our country. A growing appreciation of the advantages of arthrography, increased experience with the technique, and an increasing ability to interprete the arthrogram have led to more frequent use of this diagnostic aid. Double-contrast arthrography of the knee is of particular value in the examination of the patient with an atypical history of in jury and unusual physical findings, or in the individual with an acute injury who cannot tolerate a manipulative physical examination. Its use has led to greater diagnostic acumen prior to operative intervention and in many cases has aided the orthopedic surgeon in determing whether or not surgery indicated and in surgical exploration. And its accuracy of the diagnosis of the meniscus tear has been very high, greater than 90% in many series. The followings are summary of result; 1) Double-contrast arthrography of the knee is a valuable diagnostic procedure. 2) Prolonged observation and procrastination in the treatment of patients with symptomatic knees could be avoided. 3) There were no complications of arthrography and all patients returned to work immediately after the procedure. 4) In this series, 2 cases out of the 6 cases of the torn lateral meniscus were not demonstrated correctly by arthrography. From this result, it is suggested that the interpretation of arthrographic findings is somewhat difficult at present time. In future, further experience and study for arthrography is demanded for more accurate interpretation of the conditions of the structures of the knee joint and also is desired to compare with the arthroscopic findings.
Arthrography ; Coloring Agents ; Diagnosis ; Humans ; Knee ; Knee Joint ; Menisci, Tibial ; Orthopedics ; Physical Examination ; Tears

Flexor tendon injuries of the “no man's land”(Zone2) in the hand have long been considered one of the problem areas for hand surgeons because of the frequently unsatisfactory result of treatment. Two-stage tendon reconstruction using the silicone rod prosthesis is one of the recent valuable procedures for management of severely damaged hand. From Aug. 1977 to Jun. 1978, the authors performed this procedure using “Hunter Silicone Rod” on 4 cases of flexor tendon injuries accompanied by deep cicatrix of soft tissue and stiffness of finger joints. The follow-up results were excellent in 3 cases out of the 4, and poor in the remaing case which had marked wound infection and stiffness of finger joints.
Cicatrix ; Finger Joint ; Follow-Up Studies ; Hand ; Prostheses and Implants ; Silicon ; Silicones ; Surgeons ; Tendon Injuries ; Tendons ; Wound Infection

No abstract available.
Proportional Hazards Models* ; Survival Analysis*

No abstract available.
Animals ; Rats*

No abstract available.
Trophoblasts*

Although more reports on the fungal keratitis are recently coming out, cases of mixed infection by two or more fungal agents have not yet beenreported in the literature. The authors experienced a case of fungal keratitis caused by a combination of Fusarium solani and Acremonium falciforme in which central corneal ulcer with severe suppurative infilteration and hypopyon were observed. Since the conditions were resistant to conservative treatment and corneal perforation occurred despite of medical treatment, penetrating keratoplasty was performed along with postoperative topical and systemic antifungal therapies for several weeks and good results were obtained with no evidence of recurrence.
Acremonium* ; Coinfection ; Corneal Perforation ; Corneal Ulcer ; Fusarium* ; Keratitis* ; Keratoplasty, Penetrating ; Recurrence

OBJECTIVES: Xylitol is an effective anticarious natural sugar substitute, by inhibiting the virulence of Streptococcus mutans (S. mutans). However, long-term xylitol consumption leads to an emergence of the xylitol-resistant (XR) strains. This study aimed to confirm the general characteristics, mRNA expression of gtf genes, and adhesive ability of the xylitol-sensitive (XS) and XR S. mutans , by xylitol-treated concentrations. METHODS: S. mutans KCTC3065 was maintained in TYE medium, containing 0.4% glucose with 1% xylitol for 30 days at 37degrees C, 10% CO2 to form XR strain and the same procedures, without xylitol, were repeated for the formation of XS S. mutans. Both XS and XR were cultured by xylitol-treated concentrations (0%, 0.1% and 1%), then, general characteristics, such as growth and acid production, mRNA expression of gtf genes and adhesive ability were analyzed. RESULTS: Xylitol reduced the cell growth of XS S. mutans in a dose-dependent manner, but did not reduce the XR. Xylitol inhibited acid production of XS in a dose-dependent manner. However, it did not inhibit that of XR. Xylitol reduced the gtfB and gtfD mRNA expression of the XS S. mutans, which the genes synthesized soluble and insoluble extracellular polysaccharides, but not reduced that of the XR. By a microtiter plate assay, biofilm formation was more reduced in the XR strains, which means biofilm's adhesive ability of XR S. mutans was lower than that of the XS. CONCLUSIONS: These results indicate that a lower level of adhesive ability for XR S. mutans is related with mRNA expression level of gtf genes, which suggested that the XR strains may be less cariogenic than that of the XS.
Adhesives ; Biofilms ; Glucose ; Glucosyltransferases ; Polysaccharides ; RNA, Messenger ; Sprains and Strains ; Streptococcus ; Streptococcus mutans ; Sweetening Agents ; Xylitol