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Case No. 241
2011-05-01~2011-05-31
출제자 : 최승홍
Hit : 484
| Period | 2011-05-01~2011-05-31 |
|---|---|
| Diagnosis | |
| Clinical information | F/37 C.C: 양팔마비, loss of consciousness (6 MA) |
| Discussion | Answer: Atypical extraventricular neurocytoma Definition Neurocyte-containing neuronal or glioneuronal tumors that are geographycally remote from the region of the foramen of Monro IHC Diffuse synaptophysin (+) in cytoplasm and neuropil NeuN (+) in nucleus Deletion of chromosome 1p and 19q 24% 1p19q co-deletion and 10% 1p loss Atypical histologic features (Brain Pathol. 2009) Atypical EVN Ki-67 LI >2% with/without anaplastic features viz. focal necrosis and vascular proliferation Short recurrent free survival |
| Correct answer |
Correct AnswerSemi-Correct Answer |