The authors performed experimental study to produce proliferative vitreoretinopathy by intravitreal injection of homologous fibroblasts in pigmented rabbits. Twenty four eyes of 12 rabbits were divided into control and experimental groups. In experimental group, the eyes were pretreated with expanding gas, perfluoropropane for the vitrectomy. In control group, no such procedure was preceded. In both groups, 5.0×10⁴, 1.0×10⁵ and 1.5×10⁵ cells of homologous fibroblasts were injected into the vitreous cavity. All the eyes were observed regularly with indirect ophthalmoscope followed by fundus photography. Those eyes were enucleated in 1, 2, 4 weeks for the light and electron microscopic studies. The development and severity of the proliferative vitreoretinopathy were correlated with the numbers of the injected fibroblast. This was more pronounced in the experimental group.
Fibroblasts ; Intravitreal Injections ; Ophthalmoscopes ; Photography ; Rabbits ; Vitrectomy ; Vitreoretinopathy, Proliferative*

No abstract available.
Animals ; Calcitonin* ; Female ; Osteoporosis* ; Ovariectomy* ; Rats*

Extraskeletal Neoplasm Resembling Ewings Sarcoma was firstly reported with comprehensive review of 39 cases by L. Angervall and F.M. Enzinger in 1975. The tumors chiefly affected young adults and most commonly involved the soft tissue of lower extremity. Microscopically, they were consisted of solidly packed small, round or ovoid cells arranged in sheets or lobules, which were indistinguishable from those of the Ewings sarcoma of bone. The authors recently experienced a soft tissue sarcoma occurring in deltoid area of young male patient, which was diagnosed extraskeletal neoplasm resembling Ewings sarcoma. The case review is presented.
Humans ; Lower Extremity ; Male ; Sarcoma ; Sarcoma, Ewing ; Young Adult

No abstract available.
Breast Neoplasms* ; Breast*

No abstract available.
Cholecystectomy*

No abstract available.
Orthopedics* ; Superficial Back Muscles*

No abstract available.
Prostate* ; Testis*

PURPOSE: Retrospective studies were carried out to clarify the incidence of contralateral occurrence after unilateral repair of hydrocele in children and the role of ultrasonography in preoperative recognition of asymptomatic hydrocele. MATERIALS AND METHODS: 452 patients of under 14 years old who underwent unilateral hydrocele repairs between January, 1990 and December, 1997 were reviewed. Patients with contralateral occurrence were defined as those who had previous unilateral hydrocele repairs and no clinical or historical evidence of contralateral hydrocele at the time of the initial repair Patients with simultaneous presence of bilateral hydrocele on their initial visit were excluded from this study. 36 patients who visited lately underwent ultrasonographic examination of both side of the groin and scrotum prior to surgery to identify asymptomatic contralateral hydrocele. RESULTS: The incidence of contralateral occurrence after unilateral hydrocele repairs was 5.4%(24 patients). When the left side was repaired initially, 13(7.4%) patients showed contralateral occurrence and when the right side was repaired initially, 11 (4.0%) patients showed contralateral occurrence. In the 36 patients who underwent ultrasonography, 2 patients(5.6%) had asymptomatic contralateral hydrocele and exploration revealed the presence of a patent processus vaginalis. On the other hand, 2 patients(5.6%) with negative ultrasonographic findings had contralateral repairs 1 month after clinically apparent hydrocele repair. CONCLUSIONS: Although the incidence was low, contralateral occurrence after unilateral repair of hydrocele in children was noted. Therefore, preoperative thorough history taking and physical examination in unilateral hydrocele patients should be performed. Also, in suspicious cases, inguinal or scrotal ultrasonography is helpful for the detection of the clinically occult contralateral hydrocele in children.
Adolescent ; Child* ; Groin ; Hand ; Humans ; Incidence ; Physical Examination ; Retrospective Studies ; Scrotum ; Ultrasonography

No abstract available.
Brain* ; Hemangioendothelioma* ; Lung* ; Mediastinum*

No abstract available.
Cystitis ; Diabetes Mellitus ; Humans