[Histobiological features of posterior cranial fossa meningiomas and their impact on follow-up].
Total removal of posterior cranial fossa meningiomas often leads to complications due to localization, direction and nature of tumor growth. Radical excision as well as histological grade are the principal factors determining recurrence of disease in follow-up period. The paper evaluates the role of ki67 in progression of posterior cranial fossa meningiomas. We performed 189 immunohistochemical studies and katamnestic analysis of patients operated in Burdenko Neurosurgical Institute (Moscow). We showed that level of expression of ki67 correlates with histological grade of posterior fossa meningiomas. We established that recurrence-free survival depends on ki67. This allows prediction of prognosis. Low expression of ki67 corresponds longer recurrence-free survival. If ki67 expression is over 4% recurrence within 2 years after surgery is observed significantly more frequently. Multifactor statistical analysis confirmed prognostic value of ki67 especially in females and patients below 50 because terms of recurrences in these populations are significantly smaller. Obtained data prove versatility of ki67 in neurooncology which should enable its wider application in neurosurgical clinics.
Shimanskiĭ
V N
VN
Korshunov
A G
AG
Shishkina
L V
LV
Kozlov
A V
AV
Sycheva
R A
RA
Magalashvili
E G
EG
Makhmudov
U B
UB
D000328:Adult; D000367:Age Factors; D000368:Aged; D003388:Cranial Fossa, Posterior / Q000378:metabolism / Q000473:pathology / Q000601:surgery; D018572:Disease-Free Survival; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D007150:Immunohistochemistry; D019394:Ki-67 Antigen / Q000096:biosynthesis*; D008297:Male; D008577:Meningeal Neoplasms / Q000378:metabolism / Q000401:mortality / Q000473:pathology / Q000601:surgery; D008579:Meningioma; D008875:Middle Aged; D012737:Sex Factors; D019292:Skull Base Neoplasms / Q000378:metabolism / Q000401:mortality / Q000473:pathology / Q000601:surgery; D015996:Survival Rate
D019394:Ki-67 Antigen