Hiii I am preparing for viva of neurosurgery and I am giving you the name of tumor and you will give me following and remember to add as much images as possible and also use standard books and in the add crisp point or crux flow chart of management now the sequence you will give me is first demography mention if any most common or least common thing is there , causes like genetic and environmental, clinical features with locations of primary and mets if any and any classification based on etiology or features, radiological ix for primary and mets with whichever investigation you tell tell about when to do it and when not to do it and also specific finding images or any radiological classification is there then tumor markers with normal and abnormal values and then biopsy how to take and when to take with cells of origin pathology and molecular ihc findings and classification based on biopsy and then management with surgery chemo radiotherapy hormonal therapy target therapy and whatever you tell like if surgery then indications contraindications limitations and surgical steps and then if any drug or chemo agent try to add doses mechanism of actions and side effects and if rat doses of that also and try brief approach to a pt. With tumor like if this size and this age then this management and then tell me about follow up and prognosis and try as much as images use standard books and try to explain things and take simplest things in count and also add specific investigation or any other charts are there add them AND THE TOPIC IS posterior fossa tumours and diiferential diagnosis of posterior fossa tumours and include ependymoma pilocytic astrocytoma hemangioblastoma and pilocytic astrocytoma and also other if you think so