橋小腦角區(qū)原發(fā)髓母細(xì)胞瘤的病理和分子亞型特點(diǎn)的研究
[Abstract]:Objective: primary medulloblastoma in cerebellopontine angle area is rare. Compared with other common lesions in this area, it is difficult to diagnose the disease before operation because of no characteristic clinical and imaging manifestations. In addition, it is difficult to judge the prognosis of the disease because of the variety of tumor sources and the unclear understanding of its pathological and molecular biological characteristics. The aim of this study was to study the pathological and molecular subtypes of primary medulloblastoma in CPA region and to obtain a method to determine its prognosis. Methods: the clinical data of 11 patients with primary medulloblastoma in CPA area from January 2006 to June 2012 were retrospectively analyzed and followed up. The histopathological classification was determined by HE and Reticulin staining, and the molecular subtypes of Gab-1, 尾-catenin,Flamin A and Yap-1 antibodies were determined by immunohistochemical staining. Combined with the above data, chi-square test and K-M survival analysis were carried out. Results: among the 10 cases of primary medulloblastoma in CPA region, 6 cases were classic type (6 / 10), DN type, 3 cases were 6 / 10), DN type), 1 case was large cell / intervariant type (1 / 10). SHH type, 8 cases (8 / 10%). One case of WNT type and one case of Non-SHH/WNT type (1 / 10). The survival prognosis of patients with different age groups (p0. 007 / 0.05), pathological types (p0. 01 / 0. 05) and molecular subtypes (p0. 007 / 0. 05) were significantly different. There was no significant effect on survival and prognosis with or without dural involvement. Conclusion: primary medulloblastoma in CPA area is rare and difficult to diagnose before operation. The total removal rate of medulloblastoma in this area was low, but there was no significant difference in survival and prognosis between patients undergoing systemic radiotherapy and chemotherapy. There was no significant difference between the pathological types and other common sites of medulloblastoma, but the proportion of SHH subtypes was high, suggesting that the overall prognosis of CPA primary medulloblastoma was relatively good. The classification of pathological types and molecular subtypes for patients with different age groups is very important for individualized prognostic risk prediction.
【學(xué)位授予單位】:首都醫(yī)科大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類(lèi)號(hào)】:R739.41
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