Biomedical subjects
Publications and source records attributed to O Cataltepe.
We report a case of bilateral orbital encephaloceles associated with exophthalmos of the left eye. Orbital encephaloceles, especially bilateral ones, are very rare. The surgical approach to the repair of this defect and reasons for preferring a transcranial approach are described and discussed.
Plasmocytoma is a plasma cell tumor, which occurs in various structures of the body. When the spinal column is involved, it may cause cord compression. In this study, 14 cases of spinal plasmocytomas are presented. Seven of them were male and seven female. The major complaints were pain in twelve cases, motor weakness in eight cases, and bladder disturbance in six cases. On neurological examination, twelve of the patients had impairment of extremity movements (85.7%), and eight had sensory losses (57.1%). Compression was more frequent in the thoracic region. There was a total block in nine and partial block in five cases. All patients underwent surgery. In thirteen cases laminectomy was performed, in one thoracotomy. In this report, complaints, clinical and laboratory findings, neurological examination, and histopathology of our cases are reviewed and the results discussed.
BK and JC viruses are human papovaviruses widespread in human population. Primary infection with those viruses are generally asymptomatic and reactivation occur upon immunodepression. JC virus found to be associated with Progressive Multifocal Leukoencephalopathy. In the other hand BK virus mostly reactivated after immunosuppression. Both viruses have oncogenic potential when inoculated subcutaneously or intracerebrally to experimental animals. However, there is no direct relation has been shown yet for association of those new human papovaviruses with human malignancies.