No abstract available.
Maxillary Sinus* ; Maxillary Sinusitis*

No abstract available.
Lead Poisoning*

No abstract available.

No abstract available.
Down Syndrome*

Marjolin's ulcer is a malignant degeneration of cicatrical tissue, especially in chronic burn scar. Since the first description by Jean Nicholas Marjolin(1828), many studies for Marjolin's ulcer have been performed and reported. From 1985 to 1997, we experienced 20 cases in 14 patients diagnosed as Marjolin's ulcer clinically, and we analysed malignant transformation rate, induction period of Marjolin's ulcer and prevention of Marjolin's ulcer, etc. The results are summarized as follows. 1) The sex distribution was predominant in male(64.3%). 2) The most common cause of injury was flame burn(78.6%). 3) The mean age at the time of diagnosis was 45.6 years and the average lag period was 20.6 years. 4) The pathologic types of Marjolin's ulcer were squamous cell carcinoma(57.2%), followed by dyspasia(28.6%), acnthosis and hyperkeratosis(14.2%). 5) The locations of ulcers were frequently on the lower extremity(42.9%), followed by upper extremity(35.7%) and trunk (21.4%). 6) The lymph node involvements were 3 patients out of the 8 patients who were confirmed as squamous cell carcinoma. 7) The modalities of treatment were skin graft (18 cases, 12 patients), myocutaneous flap(1 case, 1 patient), fasciocutaneous flap(1 case, 1 patient).
Burns ; Carcinoma, Squamous Cell ; Cicatrix ; Diagnosis ; Humans ; Lymph Nodes ; Sex Distribution ; Skin ; Transplants ; Ulcer*

No abstract available.
Hand* ; Wrist*

BACKGROUND AND OBJECTIVE: Infeared tympanic membrane thermometer (ITMT) provides an accurate estimate of tympanic membrane temperature in healthy children and may accurately reflect core body temperature. This study was undertaken to determine if temperature readings using this newly designed ITMT are affected by the presence of acute suppurative otitis media (ASOM) in children. MATERIALS AND METHODS: Forty children with unilateral acute suppurative otitis media were enrolled in the study. Temperature of ASOM was measured in both ears using ITMT and compared to 20 normal children. RESULTS: In acute suppurative otitis media, the mean temperature in infected ears was 1.28t higher than that in uninfected ears (p(0.05). The mean temperature of normal children was 36.34C and there was statistically significant difference between normal and unilateral acute otitis media. CONCLUSION: The ITMT was found to be accurate, rapidly responding and easy to use. It may help to diagnose acute unilateral suppurative otitis media combined with pneumatic otoscopy md tympanogram.
Body Temperature ; Child ; Ear ; Humans ; Otitis Media ; Otitis Media, Suppurative* ; Otoscopy ; Reading ; Thermometers ; Tympanic Membrane*

BACKGROUND AND OBJECTIVE: During the last decade, the surgical use of alloplasts has become more and more widespread among otologists. But extrusion has been the general problem associated in using alloplasts. This study analyzes the change of' surface and microcomponent of the extruded Polycel prosthesis following a long-term middle ear implantation. MATERIALS AND METHODS: Nine extruded Polycel prosthesis were investigated using scanning electronmicroscopy (SEM) and energy dispersive spectrometer (EDS). RESULTS: They all showed a severe resorption of fibrous encapsulation and partial resorption of the shaft which faced stapes and footplate. The carbon component decreased and nitrogen and oxide increased more than the original Polycel due to microdegradation. CONCLUSION: Consistent microdegradation and resorption may be one of the factors causing extrusion of Polycel.
Carbon ; Nitrogen ; Ossicular Prosthesis* ; Prostheses and Implants ; Stapes

More than 25,000 products capable of producing chemicals bums are now used in industry, agriculture, military, science, and the home. Cutaneous injury from caustic chemicals is unlike cutaneous thermal injury that tissue destruction continues until its is neutralized or its toxicity is exhausted by reaction with the tissues. Reduction of the time of exposure to the caustic agent and recognition of systemic toxicity are necessary to lessen the severity of insult, reduced morbidity and maximized survivals. During the 9-year period from January 1986 to December 1994, 5,945 burn patients were admitted to the Han Gang Sacred Heart Hospital. Among them, 78 patients were chemicaly burned. In these chemical bum patients, retrospective study was done for the review of following issues; incidence, age and sex, places of accidents, agent, prevalent site, extents of body area fumed, distribution of depth, average hospital days according to extent and depth, complication, mortality rate and management. The result were as follows. 1) The incidence of chemical bums patients was 1.3 % of all admitted bum patients. 2) The prevalent age group was between 20 and 39 years old(67.9%). 3) The ratio of male to female was 9 : 1. 4) The incidence of work-related bums was 71.8%. 5) The most common chemical agent was sulfuric acid(28.2%), followed by sodium hydroxide(17.9%) and hydrochloric acid (12.8%). 6) The most common prevalent site was face and neck(62.2%). 7) Distribution of body area burned between 1 to 10% was 70.4%. 8) The average hospital days according to depth, superficial second degree was 13.4 days, deep second degree was 31 days, and third degree was 83.1 days. 9) The most common complication was scar contracture. 10) Overall mortality rate was 5.1%(4 cases), the cause of death was septic shock and ARDS, and average hospital days was 10 days.
Agriculture ; Burns ; Burns, Chemical* ; Cause of Death ; Cicatrix ; Contracture ; Female ; Heart ; Humans ; Hydrochloric Acid ; Incidence ; Male ; Military Personnel ; Mortality ; Retrospective Studies ; Shock, Septic ; Sodium ; Sulfur

BACKGROUND AND OBJECTIVES: Mast cells are localized in the middle ear and Eustachian tube. They play a prominent role in the inflammatory and allergic conditions. The purpose of this study is to investigate if different inflammatory reactions depend on whether patients are allergic or not by measuring concentration of the mast cell tryptase that reflects the mast cell activity. MATERIALS AND METHOD: Twenty-five patients with chronic otitis media with effusion (COME) were studied. Thirteen patients were confirmed allergy positive by multiallergosorbent test. Mast cell tryptase in the middle ear effusions was measured using western blotting. RESULTS: Mast cell tryptase was more strongly expressed in the effusions with allergy positive than in the allergy negative (p<0.01). CONCLUSION: There was a correlation between mast cell tryptase from MEE and allergy, so we conclude that allergy plays a role in the pathogenesis of COME.
Blotting, Western ; Ear, Middle ; Eustachian Tube ; Humans ; Hypersensitivity ; Mast Cells* ; Otitis Media with Effusion* ; Otitis Media* ; Otitis* ; Tryptases*