The treatement of cerebral oligodendrogliomas with particular reference to features indicating malignancy: Report of seventy-seven cases

Oligodendrogliomas are relatively rate tumors that arise from the oligodendrocyte or its precursors. The role of postoperative radiotherapy (RT) in these tumors still remains unclear. Data concerning a study on 77 histologically verified cases of oligodendrogliomas of the brain among a total number of 1884 cases of an intracranial glioma treated at the Hacettepe Medical Centre between 1964 and 1991 were reviewed and analyzed (6.5%). One patient died in the early postoperative period and 8 patients in pediatric age group with an aggressive from of the tumor died within 6 months of treatment. The results suggest that oligodendrogliomas which arise in childhood primarily in the intraventricular region should be considered potentially more malignant than other lesions of this type. Because of this, we believe that postoperative radiotherapy is necessary to prevent the recurrences.     

Incidence and Antimicrobial Resistance of Campylobacter and Salmonella from Houseflies (Musca Domestica) in Kitchens,Farms, Hospitals and Slaughter Houses

Proceedings of the National Academy of Sciences, India Section B: Biological Sciences - Carriage status of Campylobacter and Salmonella was investigated in houseflies in Shahrekord and Isfahan...     

Balo-s Concentric Sclerosis Report of Two Patients with Magnetic Resonance Imaging Follow-up

Balo's concentric sclerosis was diagnosed antemortem in 2 patients, by magnetic resonance (MR) imaging showing striking concentric alternating rings in 1 patient and by characteristic histopathological features in the other. The course of the lesions and the concentric pattern were followed by MR imaging for 3 years and 18 months, respectively. One patient demonstrated spontaneous remission that has not been reported in Balo's disease . Balo's disease may not have a fulminant course as described in the past and the MR appearance of the chronic lesion may resemble that of a chronic multiple sclerosis plaque.     

Cerebral cladosporiosis

A 49-year-old woman was admitted to Hacettepe Medical Faculty Hospital with the complaints of headache, nausea, vomiting, lethargy, and weakness on her right side. She revealed a history of pulmonary Cryptococcus infection 5 years before and she had been treated with amphotericin B. After clinical and laboratory investigation she was thought to have an intracranial mass, but her deteriorating situation did not allow any surgical intervention; she died within 7 days. On necropsy, hard, gray-white nodular pulmonary lesions, ranging 0.1–4 cm in diameter, basal meningitis, infarcts, and a nodular lesion 1.5 cm in diameter similar to those of the lung were present in the white matter of the right hemisphere of the brain. Microscopic examination revealed granulomatous inflammation caused by Cladosporium, which had brown pigment and septate hyphae.     

Meningiomas of the lateral ventricle. Report on six cases

In this study 6 patients who had meningioma of the lateral ventricle are reviewed. The incidence is 1.8% of cases of meningiomas in our series. Microsurgical techniques were employed in all patients. There was no death and the follow-up period was between 5 months and 10 years. No recurrence was seen. Although the origin of these tumors is still not known, Dunn and Kernohan note that the choroid plexus has the potential for the production of menigothelial, fibrous, or mixed patterns. Our pathological results confirmed this suggestion.