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Neurosurgery"Basic information"patients, female, 3 years old"main complaint"headache and vomiting more than 10 days
theof the "discussion problem" diagnosis?comments: frontal lobes see clumps mixed T1, mixed T2 signal, around see edema, enhance the lesions significantly uneven reinforcement, consider the prefrontal malignant tumor occupancy and bleeding, consider the original neuroblastoma layer tumorResultsPathological diagnosis: PNET"Case Summary"the original neuroblastmal tumor (primitive neurotodermal tumor, PNET) is a class of highly malignant tumors developed by the original neuroepitheliance cells, strong aggression, prognosisPNET, which occurs on screen, is extremely rare, accounting for only about 0.1% of the total brain tumour, about 85% of patients are children, and adults are even rarerIn 2007, WHO classified the original neuroblastoma tumor (SPNET) in the embryonic tumor of the central nervous system and similar tumors located in the brain stem and spinal cord into a class, and renamed the central nervous system's primary neuroblastoma tumorpathological tumor is composed of primitive undifferentiated cells similar to embryonic neural tube, high cell density, low content of extracellular water, easy to see nuclear division, can be accompanied by bleeding and necrosisTumor cells grow rapidly, reaching the ventricular tube membrane or the soft meninges can spread through cerebrospinal fluidSPNET imaging features are: (1) tumors are more distributed in the forehead, temporal lobes, a few tumors are located in the pillow leaf, more circular or leaf-like, lesions boundary is clear, not accompanied or only accompanied by tumor-weeked edema; 2WI is equivalent or slightly higher signal, DWI is equally high, high signal, CT or MRI enhanced scanning tumor substance is often characterized by uniform or uneven obvious strengthening; This case of lesions is located in the frontal lobe, cystic, cystytic part is located around the lesions, the lesions with calcification, enhanced scanning of the substantive part of the obvious uneven strengthening, the lesions edema is not obvious, and the literature reported basically consistentimaging performance should be distinguished from high-level astrocytosma, small-branch glioblastoma, primary intracranial lymphoma, meningioma and so onHigh-level astrocyte tumor has a trend of more extensive immersion growth, lesions of edema is obvious; less gescangum cell tumor softened with calcification, lesions often have edema; primary intracranial lymphoma tumor form is irregular, the boundary is not clear, the tumor is generally uniform, bleeding, calcium rare; meningioma is located outside the brain to cause oppression of brain tissue signs, women more visible, enhanced scanning more obviously strengthenedsource: Video Parkhighlights:meet at 2020-4-21 comment:learning(from:MedSciMedicine
)(no nickname)2020-4-2
1:from the