Early response to chemotherapy as an indicator for the management of germinoma-like tumors of the pineal and/or suprasellar regions
Early response to chemotherapy as an indicator for the management of germinoma-like tumors of the pineal and/or suprasellar regions
复制标题
对化疗的早期反应作为松果体和/或鞍上区生殖细胞瘤样肿瘤治疗的指标
DOI:
10.1016/j.jocn.2013.05.014
复制
发表时间:
2014
影响因子:
2
通讯作者:
T. Tominaga
中科院分区:
文献类型:
--
作者:
R. Saito;T. Kumabe;Masayuki Kanamori;Y. Sonoda;Mika Watanabe;S. Mugikura;Shoki Takahashi;T. Tominaga
Recent advances in diagnostic imaging and experience with germinomas may allow for the differentiation of central nervous system germinomas from other tumors based on clinical information, without histological verification. We retrospectively analyzed clinically diagnosed germinoma-like tumors of the pineal and/or suprasellar regions. This was done to evaluate the efficacy of our strategy of defining germinoma-compatible tumors based on good responses to initial chemotherapy. The responses to chemotherapy and survival of 34 consecutive patients with germinoma-like tumors who underwent initial treatment from July 2001 to October 2010 were analyzed. The minimum apparent diffusion coefficient (minADC) value and proton magnetic resonance spectroscopy (MRS) were evaluated in recent patients. Twelve patients with histologically verified germinomas and 18 with germinoma-compatible tumors showed early logarithmic decreases in tumor volume in response to initial chemotherapy, typical low minADC values and typical MRS characteristics, including increased choline/creatine ratios, decreased N-acetylasparate/creatine ratios, and large lipid peaks. These patients had good progression-free survival. The other four patients, with histologically verified non-germinomas, showed no response to chemotherapy, and one patient with a pineoblastoma showed a similar minADC value and MRS characteristics to those of patients with germinomas. The response to initial chemotherapy can be used to distinguish germinoma-compatible tumors from non-germinoma in patients with germinoma-like tumors of the pineal and/or suprasellar regions. The evaluation of minADC and proton MRS are useful for distinguishing germinomas from other tumors. However, a subset of non-germinomas may show similar characteristics to germinomas. The benefit of bypassing unnecessary surgical intervention can be achieved, at least in Asian populations with a high incidence of germinomas.
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
Naoki Tsunekawa;Nobuaki Higashi;Tatsuro Irimura.;Kaori Denda-Nagai and Tatsuro Irimura;入村達郎;浜瀬健司;浜瀬健司
通讯作者:
浜瀬健司
影响因子:
12.7
作者:
Louis DN;Ohgaki H;Wiestler OD;Cavenee WK;Burger PC;Jouvet A;Scheithauer BW;Kleihues P
通讯作者:
Kleihues P