True statement about metastases of malignant tumors of brain is:

Ans. (d) All of the above(Ref: Robbins 9th/pg 1312; 8th/pg 1336)Dissemination through the CSF is a common complication- giving rise to nodular masses at some distance from the primary tumor called as "drop metastases" is a feature of medulloblastomaMan made shunts provide a route for metastasis of malignant tumorsLymphomatous metastases, on the other hand, tend to produce a more diffuse pial enhancement, as breast and prostate metastases.