WordNet

not yet mature
characteristic of a lack of maturity; "immature behavior"
a tumor consisting of a mixture of tissues not normally found at that site

PrepTutorEJDIC

(人・動物・果実などが)未[成]熟な,円熟(成熟)していない / おとなげない

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/10/13 15:11:14」(JST)

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An immature teratoma is a rare type of malignant (cancerous) germ cell tumor (type of tumor that begins in the cells that give rise to sperm or eggs).

Like a mature teratoma, it contains several different types of tissue such as hair, muscle, and bone. Unlike a mature teratoma, it contains primitive neuroepithelium.

External links

Immature teratoma entry in the public domain NCI Dictionary of Cancer Terms

This article incorporates public domain material from the U.S. National Cancer Institute document "Dictionary of Cancer Terms".

This oncology article is a stub. You can help Wikipedia by expanding it.

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1. 卵巣胚細胞腫瘍：病理学、臨床症状、および診断 ovarian germ cell tumors pathology clinical manifestations and diagnosis
2. 卵巣の悪性胚細胞腫瘍の治療 treatment of malignant germ cell tumors of the ovary
3. 縦隔および後腹膜を含む性腺外胚細胞腫瘍 extragonadal germ cell tumors involving the mediastinum and retroperitoneum
4. 精巣腫瘍の解剖学および病理 anatomy and pathology of testicular tumors
5. 仙尾骨部胚細胞腫瘍 sacrococcygeal germ cell tumors

English Journal

Neuroblastoma cells injected into experimental mature teratoma reveal a tropism for embryonic loose mesenchyme.

Jamil S, Cedervall J, Hultman I, Ali R, Margaryan NV, Rasmuson A, Johnsen JI, Sveinbjörnsson B, Dalianis T, Kanter L, Orrego A, Strizzi L, Hendrix MJ, Sandstedt B, Kogner P, Ahrlund-Richter L.SourceDepartment of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden.
International journal of oncology.Int J Oncol.2013 Sep;43(3):831-8. doi: 10.3892/ijo.2013.2014. Epub 2013 Jul 12.
Embryonic neural tumors are responsible for a disproportionate number of cancer deaths in children. Although dramatic improvements in survival for pediatric malignancy has been achieved in previous years advancements seem to be slowing down. For the development of new enhanced therapy and an increas
PMID 23857308

Normal human embryonic stem cell lines were derived from microsurgical enucleated tripronuclear zygotes.

Jiang C, Cai L, Huang B, Dong J, Chen A, Ning S, Cui Y, Qin L, Liu J.SourceState Key Laboratory of Reproductive Medicine, Center of Clinical Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, 210029, China.
Journal of cellular biochemistry.J Cell Biochem.2013 Sep;114(9):2016-23. doi: 10.1002/jcb.24547.
A normal fertilized human zygote contains two pronuclei, but zygotes may also display one, three, or even more pronuclei resulting from irregular insemination or meiotic division. Today diploid and triploid human embryonic stem cell (hESC) lines have been derived from tripronuclear (3PN) triploid zy
PMID 23564289

Abundant nucleostemin expression supports the undifferentiated properties of germ cell tumors.

Uema N, Ooshio T, Harada K, Naito M, Naka K, Hoshii T, Tadokoro Y, Ohta K, Ali MA, Katano M, Soga T, Nakanuma Y, Okuda A, Hirao A.SourceDivision of Molecular Genetics, Cancer and Stem Cell Program, Cancer Research Institute, Kanazawa University, Kanazawa, Japan.
The American journal of pathology.Am J Pathol.2013 Aug;183(2):592-603. doi: 10.1016/j.ajpath.2013.04.018.
Nucleostemin (NS) is a nucleolar GTP-binding protein that is involved in ribosomal biogenesis and protection of telomeres. We investigated the expression of NS in human germ cell tumors and its function in a mouse germ cell tumor model. NS was abundantly expressed in undifferentiated, but not differ
PMID 23885716