Ich zitiere hier drei Artikel (in Kurzfassung), die über das Entstehen von Meningeomen durch ionisierende Strahlung berichten. Alle wurden über "medline" recherchiert. Bei der Suche nach "radiation AND induced AND meningioma" fanden sich im Dezember 2002 bei medline 197 "Treffer".
Quelle: J Neurosurg 2002 Nov;97(5):1078-82
Zitat: Radiation-induced meningioma: a descriptive study of 253 cases.
Sadetzki S, Flint-Richter P, Ben-Tal T, Nass D.
Cancer Epidemiology Unit, Gertner Institute, Sheba Medical Center, Tel-Hashomer, Israel.
Ionizing radiation is the only established risk factor recognized today in the causation of meningioma. The aim of the present report is to describe the demographic and clinical characteristics of a large series of 253 patients with radiation-induced meningiomas (RIMs). These parameters were compared with those of 41 patients with meningiomas in whom there was no previous history of irradiation (non-RIM group) and with other series of patients presented in the literature.
METHODS:
The cases of RIM were recruited from a cohort of appproximately 11,000 individuals who had been treated with ionizing radiation during childhood for tinea capitis [das ist eine Pilzinfektion, Informationen darüber z.B. bei "google"] and from a group of individuals who, as adults, applied for compensation because of that treatment. The non-RIM group was identified through the Israeli Cancer Registry. Exposure to radiation was carefully validated among all cases of RIM and absence of previous irradiation was verified for all patients in the non-RIM group. Significantly, a lower patient age at diagnosis, higher prevalence of calvarial tumors, higher proportion of multiple meningiomas, and a nonsignificant higher recurrence rate were observed among patients with RIM compared with the non-RIM group. The mean latency period from date of radiation exposure to development of a meningioma among the RIM group was approximately 36 years.
CONCLUSIONS:
The findings of this study agree with those of other studies indicating the demographic, clinical, and even genetic variability between RIM and non-RIM cases. The existence of two different subtypes of meningiomas may have profound implications for screening, early diagnosis, and therapy of meningiomas.
Quelle: Neoplasma 2001;48(6):442-4
Zitat: Radiation-induced meningiomas.
Boljesikova E, Chorvath M.
Department of Radiotherapy, St Elisabeth Cancer Institute, Bratislava, Slovak Republic. ebolijasi@ousa.sk
High dose radiation-induced meningiomas are a rare, severe and late complication of craniospinal radiotherapy for brain tumors. Radiation-induced meningiomas are, according to the literature, several times more frequent than radiogenic gliomas and sarcomas. It is suggested that every new case of radiogenic meningioma has to be reported to elucidate this particular pathologic entity with its many grey areas. In addition to high dose radiation-induced meningiomas, intracranial meningiomas were observed in patients who underwent low-dose radiation for tinea capitis in childhood, applied en mass to immigrants coming to Israel from the North Africa and the Middle East during the 1950. Authors summarize the data on radiogenic meningiomas from the literature and, as the previous radiotherapy may confer a low, but life-long risk for meningioma occurrence, they suggest that surveillance MRI after high dose cerebrospinal radiotherapy should be extended to several (3-5) decades after radiotherapy.
Quelle: J Neurosurg Sci 1997 Dec;41(4):413-7
Zitat: Radiation-induced cerebral meningiomas. Case reports.
Marconi F, Parenti G.
Division of Neurosurgery, Hospital of Livorno, Italy.
Two cases are presented of meningiomas following external cranial irradiation in which several features clearly indicate a causal relationship between radiotherapy and tumour development. In one patient multiple recurred meningioma was diagnosed 30 years after low-dose X-ray treatment of Tinea capitis; in the other patient the meningioma was diagnosed approximately 18 years after high-dose radiation therapy for astrocytoma. The features distinguishing radiation-induced meningiomas from other meningiomas are reviewed. The use of radiation therapy only in those cases in which there is clear evidence that it will have beneficial effects and that these effects will outweigh the risks is emphasized.