Kaposi's sarcoma was first descrided by Kaposi in 1872 as an idiopathic multiple hemorrhagic sarcoma. Its clinical features revealed to be erythematous red or purple macule started out, and developing into palpable dome-shaped nodules. Etiology is not defined to detail at present. Kaposi's sarcoma is classified to 4 categories; Classical, African, Epidemic and Transplant type. Epidemic or AIDS categories is found approximately 20 % of all AIDS and has strong predilection for head and neck region. The first case of Kaposi's sarcoma observed in patients with kidney transplants was reported in 1969. Kaposi's sarcoma now accounts for 5% of all tumors associated with transplanted patients and alteration of the immunosuppression may have played a key role in these recipients. The most common site of Kaposi's sarcoma in transplanted patients are extremities but rare in head and neck area. We report a case of Kaposi's sarcoma on the hard palate in the kidney transplantation patient.
Extremities ; Head ; Humans ; Immunosuppression ; Kidney ; Kidney Transplantation ; Mouth* ; Neck ; Palate, Hard ; Sarcoma ; Sarcoma, Kaposi*

PURPOSE: This study evaluated the usefulness of resorbable plate and screw for treatment of maxillofacial bone fractures. PATIENTS AND METHODS: From july, 2000 to july, 2002, we used resorbable plates and screws(Biosorb. FX, Bionix Inc, Finland) on 126 patients for treatment of maxillofacial bone fractures. Among them, 80 patients were capable of periodic following up to present season. We evaluated these patients with clinical, radiographic findings and subjective satisfaction. RESULTS: 80 patients composed of 63 men and 17 women. Complication rates are 7.5%(6/80) recorded. 1 of bulging sensation, 3 of infection sign, 2 of the plate detachment were shown. The plates involved in such complications were removed. The other patients(92.5%) were not shown any problems. We could not find complete resorption of screw holes in the mandibular symphysis area even though two years later after surgery. CONCLUSION: Bioresorbable plates and screws are useful as fixation material at maxillofacial fractures although strength is thought to be weaker than titanium plate. But to reduce the possible complicaions, need to careful clinical and radiographical evaluations.
Female ; Fractures, Bone ; Humans ; Male ; Seasons ; Sensation ; Titanium

Odontogenic myxoma is a rare tumor which occurs almost exclusively in the jaws, and seems to be of odontogenic origin. Clinically this tumor tends to appear in the second and third decades of life, and most of the lesions are located in the premolar - molar region. It is characterized grossly by mucoid or gelatinous gray-whitish tissue that replaces the cancellous bone and expands the cortex. It is invasive locally and has a high recurrence rate ranging from 10% to 33%. Radiographically, the appearance of this tumor is varied, but usually appears as a unilocular or multilocualr radioluscency of varying size. We experienced a rare case of odontogenic myxoma 12 years old patient related to mandibular bilateral impacted canines in the mandible, so we report this case with literature.
Bicuspid ; Child ; Cuspid* ; Gelatin ; Humans ; Jaw ; Mandible* ; Molar ; Myxoma* ; Recurrence ; Tooth, Impacted

Vigabatrin (VGB) is one of the most frequently prescribed new anti-epileptic drugs in the world since 1989. It has minimal side effects and fewer drug interactions with other anti-epileptic drugs. Recently, concern of the prevalence and pathophysiology of visual impairment with VGB has been increased since the reports of visual field constriction in patients treated with VGB. We report a 46-year-old man with a visual field defect who has been suffering from complex partial seizures for 29 years. Brain magnetic resonance image (MRI) and electroencephalogram (EEG) were non-specific. The frequency of seizures was about 5 times a month for the past 5 years. VGB, in a dose of 1500 mg/day, was prescribed as an add on drug in addition to carbamazepine. 19 months after VGB treatment, the patient complained of visual dimness especially in the lower half of the visual field. He expressed it as "waving". He had no metabolic derangement. Fundus examination, visual evoked potential, and electroretinogram showed normal findings. A visual field analysis showed a bilateral field defect in the lower half. A follow up visual field analysis, 6 months after the withdrawal of VGB, revealed a slight improvement of visual field defects which were noted without significant clinical improvement. This case implicates that visual field defects due to VGB may be partially reversible.
Brain ; Carbamazepine ; Constriction ; Drug Interactions ; Electroencephalography ; Evoked Potentials, Visual ; Follow-Up Studies ; Humans ; Middle Aged ; Prevalence ; Seizures ; Vigabatrin* ; Vision Disorders ; Visual Fields*

PURPOSE: To evaluate the results of primary cementless total hip arthroplasty (THA)using the Landos Atoll hydroxyapatite (HA)-coated cup and the Euroform HA-coated stem. MATERIALS AND METHODS: Sixty-four primary THA were performed between November 1991 and October 1994, and were followed more than 5 years. Clinical and radiological results were assessed.Also, the evidence of loosening were observed. RESULTS: The mean Harris hip score improved from 57.0 points preoperatively to 88.5 points postoperatively. Of the 64 cases of emoral stems, 54 cases (84.4%) were classified as stable bone-ingrowth ixa tion, and 10 cases (15.6%)as stable fibrous fixation at the last follow-up. The linear wear of polyethylene insert was 1.83 mm (0.14-4.15 mm)and the linear wear rate was 0.23 mm/yr (0.02-0.72 mm/yr).During the follow-up period, revisions were required in 31 cases (48.4%);18 cases (28.1%)had been reoperated upon and 13 cases were (20.3%)awaiting for reoperation. Excessive early osteolysis were observed in 3 cases within 5 year.1 case in those 3 cases underwent cup revision and another 2 cases underwent head and liner change with bone grafting. CONCLUSION: Landos Atoll HA-coated acetabular cup which followed for minimum 5 years reveals 48.4% failure rate.
Acetabulum ; Arthroplasty, Replacement, Hip ; Bone Transplantation ; Durapatite ; Follow-Up Studies* ; Head ; Hip ; Osteolysis ; Polyethylene ; Prostheses and Implants* ; Reoperation