Ontology highlight
ABSTRACT: Background
A tumor comprising of different types of tissues (such as hair, muscle, bone, etc.) is known as a teratoma. It is a type of germ cell (cells that make sperm or eggs) tumor. When these germ cells have rapid cancerous growth, then such a teratoma is called a malignant teratoma. We have studied the differences between gonadal and extra-gonadal malignant teratomas and the effects of chemotherapy in both genders.Methods
The samples of 3799 male and 1832 female patients with malignant teratoma samples, between the ages of 1 and 85+ years, were selected from the years 1973 to 2014. Trends in incidence, estimated prevalence, incidence rates, and frequency were calculated in gonadal and extra-gonadal tumors with age adjustment. The five-year observed, expected, and relative survival rates were analyzed to study the prognosis.Results
The gonadal took over a majority percentage of malignant teratomas compared with the extra-gonadal (90% vs. 10% in male; 83% vs. 17% in female). For the male, the total of the gonadal and the extra-gonadal were all significantly decreased from 1973 to 2014 (p?ConclusionThe gonadal and extra-gonadal malignant teratomas show lots of differences. Chemotherapy might not help improve survival rates.
SUBMITTER: Sun H
PROVIDER: S-EPMC6492338 | biostudies-literature | 2019 Apr
REPOSITORIES: biostudies-literature
Sun Hang H Ding Hongxin H Wang Jianjun J Zhang Emma E Fang Yihua Y Li Zhenhua Z Yu Xiao X Wang Chongren C Zhao Yifan Y Chen Kan K Wen Siwan S Li Liang L Shan Shan S Hong Liu L Chen Face F Su Pu P
BMC cancer 20190430 1
<h4>Background</h4>A tumor comprising of different types of tissues (such as hair, muscle, bone, etc.) is known as a teratoma. It is a type of germ cell (cells that make sperm or eggs) tumor. When these germ cells have rapid cancerous growth, then such a teratoma is called a malignant teratoma. We have studied the differences between gonadal and extra-gonadal malignant teratomas and the effects of chemotherapy in both genders.<h4>Methods</h4>The samples of 3799 male and 1832 female patients with ...[more]