No abstract available.
Adenoma* ; Ear*

No abstract available.
Nevus, Pigmented* ; Vitiligo*

A finite element analysis has been utilized to analyze stress and strain fields and design a new configuration in orthopedics and implant dentistry. Load transfer and stress analysis at implant bone interface are important factors from treatment planning to long term success. Bone configuration and quality are different according to anatomy of expecting implantation site. The purpose of this study was to compare the stress distribution in maxilla and mandible according to implant length and bone engagement types. A three dimensional axi-symmetric implant model(Nobel Biocare, Gothenburg, Sweden) with surrounding cortical and cancellous bone were designed to analyzed the effects of bone engagement and implant length on stress distribution ANSYS 5.5 finite element program was utilized as an interpreting tool. Three cases of unicortical anchorage model with 7, 10, 13mm length and four cases of bicortical anchorage model with 5, 7, 10 and 13mm lenght were compared both maxillary and mandibular single implant situatiion. Within the limits of study, following conclusions were drawn. 1. There is difference in stress distribution according to cortical and cancellous bone thickness and shape. 2. Maximum stress was shown at the top of cortical bone area regardless of bone engagement types. 3. Bicortical engagement showed less stress accumulation when compared to unicortical case overall. 4. Longer the implant fixture length, less the stress on cortical bone area, however there is no difference in mandibular bicortical engagement case.
Dentistry ; Finite Element Analysis* ; Mandible ; Maxilla ; Orthopedics

No abstract available.
Ichthyosiform Erythroderma, Congenital*

Membranous lipodystrophy is a peculiar type of fat necrosis, present in patients with various types of skin diseases. It is charaeterized by the presence of microcysts and macrocysts lined by amorphous eosinophilic material with a crenelated arabesque appearance and microgranules in the subcutis with massive fat necrosis. The eosinophilic lining and microgranules stain positively with periodic acid-Schiff, are resistant to diastase, and also stain with Sudan black B. We report three cases of subcutanous membranous lipodystrophy in patients with erythema induratum, posttraumatic panniculitis and morphea with typical clinical and histopathologic findings.
Amylases ; Eosinophils ; Erythema Induratum ; Fat Necrosis ; Humans ; Lipodystrophy* ; Panniculitis ; Scleroderma, Localized ; Skin Diseases ; Sudan

No abstract available.
Stevens-Johnson Syndrome*

OBJECTIVE: Whether the anterior approach is better than the posterior one for cervical disc disease still remains unsettled. However, anterior discectomy and fusion procedures for all types of discs have been more popular than the posterior one. Posterior approach should not be underestimated since it has many benefits. To study it's feasibility, the effectivenes and safety of the lamino-foraminotomy for cervical disc disease, we review 10 surgical cases with posterior approach. METHODS: Ten consecutive cervical lateral disc protrusion cases which underwent lamino-foraminotomy with or without discectomy were reviewed. Patient's age, sex, main symptom, EMG studies, surgical procedure were studied retrospectively. The outcome was rated with Prolo's scale. RESULTS: There were one female and nine male patients. Major preoperative symptoms were radicular pain radiating to upper extremity, numbness, axial neck pain and motor weakness. Electromyography was performed in eight cases with six correspondent results. Lamino-foraminotomy was performed in all cases and discectomy was done in nine patients. By modified Prolo's outcome scale, nine patients enjoyed good results and one was moderate, nine patients were able to carry on their original occupations. The mean hospital stay was 14.6 days. There was no postoperative instability. CONCLUSION: With posterior approach, critical complications of anterior approach could be averted. No bone graft is needed. No graft donor site pain is expected either. Hospital stay could be shortened. The posterior foraminotomy is an easy and effective procedure in the treatment of patients for laterally located soft disc herniations.
Diskectomy* ; Electromyography ; Female ; Foraminotomy ; Humans ; Hypesthesia ; Length of Stay ; Male ; Neck Pain ; Occupations ; Retrospective Studies ; Tissue Donors ; Transplants ; Upper Extremity

No abstract available.
Deglutition Disorders ; Facial Nerve ; Glossopharyngeal Nerve ; Herpes Zoster ; Herpes Zoster Oticus ; Paralysis

BACKGROUND: Nitric oxide(NO) produced by activated macrophages through the action of iNOS is the key molecule in the killing mycobacterium. Prostaglandins produced by the action of COX-2, also, are the important mediators of inflammation and other pathophysiologic process. A complex relationship is emerging with regard to "cross-talk" between the NO and COX-2 pathways. OBJECTIVE: The purposes of this study were to investigate the expression of iNOS and COX-2 across the spectrum of leprosy in the paraffin-embedded skin lesions, to demonstrate the interaction between iNOS and COX-2 expression, and to demonstrate the differences in the cell types expressing the iNOS or COX-2. METHOD: In the paraffin-embedded skin lesions of 30 new cases of leprosy(TT, n=4; BT, n=4; BL, n=7; LL, n=15), iNOS and COX-2 expression were detected by using immunohistochemical staining. RESULTS: iNOS expression was 2.0-55.8%(mean 15.9%) and the level of expression of iNOS in TT(31.2%) and BT(32.6%) lesions was significantly higher than that of BL(11.1%) and LL(8.6%) lesions(p<0.05). COX-2 expression was 3.6-74.5%(mean 27.1%) and the level of expression of COX-2 in TT(59.2%) lesions was significantly higher than that of BT, BL and LL lesions(p<0.05). There was positive correlation between iNOS and COX-2 expression, that is, the lesions which expressed high level of iNOS also expressed COX-2 highly. The correlation was statistically significant(r=0.535, p<0.05). The overall level of COX-2 expression(27.1%) was higher than that of iNOS expression(15.9%), and when compared the expression of them across the spectrum of leprosy, COX-2 expressed higher than iNOS in TT and LL lesions. CONCLUSION: Both iNOS and COX-2 were expressed in all types of leprosy skin lesions and the level of iNOS expression in TT and BT lesions was significantly higher than that of BL and LL lesions. The level of expression of COX-2 in TT lesions was significantly higher than that of BT, BL and LL lesions. These results suggest that iNOS and COX-2 have important roles in anti-mycobacterial activities in leprosy lesions. The positive correlation between iNOS and COX-2 expression suggests that NO and COX-2 might interact synergistically or additively rather than suppress each other.
Homicide ; Humans ; Inflammation Mediators ; Leprosy* ; Macrophages ; Mycobacterium ; Prostaglandins ; Skin*

A case of Wilms' tumor in a 67 year-old female is presented. The tumor totally replaced the left kidney with extension to Gerota's fascia, the adrenal gland and ureter, with tumor thrombi in the left renal vein. Multiple bony metastases to the skull, shoulder, rib, ilium, acetabulum and femur were noted also. Microscopically, the tumor was composed predominantly of blastemal tissue with diffuse anaplasia with areas of tubular differentiation and chondroid elements. Clear cell nests were found in the proximal ureter with gradual maturation downward.
Aged ; Bone Neoplasms/secondary ; Case Report ; Female ; Human ; Kidney/pathology ; Kidney Neoplasms/*pathology/radiography ; Nephroblastoma/*pathology/radiography ; Tomography, X-Ray Computed ; Ureter/pathology