Biomaterial Database

Medulloblastomas and other neural tumours in mice treated neonatally with N-ethyl-N-nitrosourea. 1976

E L Jones, and C E Searle, and W T Smith

Newborn mice of four inbred strains were injected with a single dose of N-ethyl-N-nitrosourea. The wide range of tumours induced included a small number in the central and peripheral nervous systems. The 4 brain tumours all arose in the cerebellum. Three in one strain were medulloblastomas showing continuity with the internal granular layer. All three tumours showed diffuse infiltration through the molecular layer and continuity with densely-packed islets of cells that marginated immediately beneath the pia and closely resembled remnants of a persistent fetal external granular layer. The medulloblastomas are discussed with special relevance to the histogenesis of the equivalent tumour in man.

UI	MeSH Term	Description	Entries
D008527	Medulloblastoma	A malignant neoplasm that may be classified either as a glioma or as a primitive neuroectodermal tumor of childhood (see NEUROECTODERMAL TUMOR, PRIMITIVE). The tumor occurs most frequently in the first decade of life with the most typical location being the cerebellar vermis. Histologic features include a high degree of cellularity, frequent mitotic figures, and a tendency for the cells to organize into sheets or form rosettes. Medulloblastoma have a high propensity to spread throughout the craniospinal intradural axis. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, pp2060-1)	Arachnoidal Cerebellar Sarcoma, Circumscribed,Medulloblastoma, Desmoplastic,Medullomyoblastoma,Sarcoma, Cerebellar, Circumscribed Arachnoidal,Medulloblastoma, Adult,Medulloblastoma, Childhood,Melanocytic Medulloblastoma,Adult Medulloblastoma,Adult Medulloblastomas,Childhood Medulloblastoma,Childhood Medulloblastomas,Desmoplastic Medulloblastoma,Desmoplastic Medulloblastomas,Medulloblastoma, Melanocytic,Medulloblastomas,Medulloblastomas, Adult,Medulloblastomas, Childhood,Medulloblastomas, Desmoplastic,Medulloblastomas, Melanocytic,Medullomyoblastomas,Melanocytic Medulloblastomas
D009374	Neoplasms, Experimental	Experimentally induced new abnormal growth of TISSUES in animals to provide models for studying human neoplasms.	Experimental Neoplasms,Experimental Neoplasm,Neoplasm, Experimental
D009380	Neoplasms, Nerve Tissue	Neoplasms composed of nerve tissue. This concept does not refer to neoplasms located in the nervous system or its component nerves.	Neoplasms, Nervous Tissue,Nerve Tissue Neoplasms,Nervous Tissue Neoplasms,Neoplasm, Nerve Tissue,Neoplasm, Nervous Tissue,Nerve Tissue Neoplasm,Nervous Tissue Neoplasm
D009607	Nitrosourea Compounds	A class of compounds in which the core molecule is R-NO, where R is UREA.	Compounds, Nitrosourea
D010524	Peripheral Nervous System Neoplasms	Neoplasms which arise from peripheral nerve tissue. This includes NEUROFIBROMAS; SCHWANNOMAS; GRANULAR CELL TUMORS; and malignant peripheral NERVE SHEATH NEOPLASMS. (From DeVita Jr et al., Cancer: Principles and Practice of Oncology, 5th ed, pp1750-1)	Peripheral Nerve Neoplasms,Peripheral Nerve Neoplasms, Benign,Peripheral Nerve Neoplasms, Malignant,Peripheral Nerve Neoplastic Infiltration,Peripheral Nerve Tumors,Peripheral Nervous System Benign Neoplasms,Peripheral Nervous System Malignant Neoplasms,Neoplasm, Peripheral Nerve,Neoplasms, Peripheral Nerve,Nerve Neoplasm, Peripheral,Nerve Neoplasms, Peripheral,Nerve Tumor, Peripheral,Nerve Tumors, Peripheral,Peripheral Nerve Neoplasm,Peripheral Nerve Tumor,Tumor, Peripheral Nerve,Tumors, Peripheral Nerve
D011919	Rats, Inbred Strains	Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding.	August Rats,Inbred Rat Strains,Inbred Strain of Rat,Inbred Strain of Rats,Inbred Strains of Rats,Rat, Inbred Strain,August Rat,Inbred Rat Strain,Inbred Strain Rat,Inbred Strain Rats,Inbred Strains Rat,Inbred Strains Rats,Rat Inbred Strain,Rat Inbred Strains,Rat Strain, Inbred,Rat Strains, Inbred,Rat, August,Rat, Inbred Strains,Rats Inbred Strain,Rats Inbred Strains,Rats, August,Rats, Inbred Strain,Strain Rat, Inbred,Strain Rats, Inbred,Strain, Inbred Rat,Strains, Inbred Rat
D002528	Cerebellar Neoplasms	Primary or metastatic neoplasms of the CEREBELLUM. Tumors in this location frequently present with ATAXIA or signs of INTRACRANIAL HYPERTENSION due to obstruction of the fourth ventricle. Common primary cerebellar tumors include fibrillary ASTROCYTOMA and cerebellar HEMANGIOBLASTOMA. The cerebellum is a relatively common site for tumor metastases from the lung, breast, and other distant organs. (From Okazaki & Scheithauer, Atlas of Neuropathology, 1988, p86 and p141)	Benign Cerebellar Neoplasms,Cerebellar Cancer,Malignant Cerebellar Neoplasms,Cerebellar Neoplasms, Benign,Cerebellar Neoplasms, Malignant,Cerebellar Neoplasms, Primary,Cerebellar Tumors,Neoplasms, Cerebellar,Neoplasms, Cerebellar, Benign,Neoplasms, Cerebellar, Malignant,Neoplasms, Cerebellar, Primary,Primary Neoplasms, Cerebellum,Benign Cerebellar Neoplasm,Cancer, Cerebellar,Cerebellar Cancers,Cerebellar Neoplasm,Cerebellar Neoplasm, Benign,Cerebellar Neoplasm, Malignant,Cerebellar Neoplasm, Primary,Cerebellar Tumor,Cerebellum Primary Neoplasm,Cerebellum Primary Neoplasms,Malignant Cerebellar Neoplasm,Neoplasm, Benign Cerebellar,Neoplasm, Cerebellar,Neoplasm, Cerebellum Primary,Neoplasm, Malignant Cerebellar,Primary Cerebellar Neoplasm,Primary Cerebellar Neoplasms,Primary Neoplasm, Cerebellum,Tumor, Cerebellar
D005038	Ethylnitrosourea	A nitrosourea compound with alkylating, carcinogenic, and mutagenic properties.	Nitrosoethylurea,N-Ethyl-N-nitrosourea,N Ethyl N nitrosourea
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D000831	Animals, Newborn	Refers to animals in the period of time just after birth.	Animals, Neonatal,Animal, Neonatal,Animal, Newborn,Neonatal Animal,Neonatal Animals,Newborn Animal,Newborn Animals