| Name: | visual system |
|---|---|
| Synonyms: | |
| Definition: | Sensory system responsible for the perception of light. |
| Ontology: | Anatomy Ontology [ZFA:0001127] |
| Name: | primitive neurectodermal tumor |
|---|---|
| Synonyms: | PNET |
| Definition: | Primitive neuroectodermal tumors (PNET) are neoplasms derived from primitive neural stem cells either in the CNS or the periphery . These are small-cell, malignant embryonal tumors showing divergent differentiation of variable degree along neuronal, glial, or rarely mesenchymal lines. (M-9473/3, M-9364/3). |
| Ontology: | MPATH [MPATH:370] |