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1.The CT findings says that there is a calcified lesion - possibility of the
meningioma which is a chronic process.
2.The MR features suggest there is a acute intracranial process - which mean there is acute process may be acute bleed or oedema.
3.This can be a acute process in the chronic / lesion.
4.It can not be ruled out the old calcified lesion -
MRI has its specification and limitations. CT has property to evaluate the bony and calcific process.
5.MRI is good for acute bleed, nerves,
ventricular system and so on.
Good luck.
Hope i have answered your query,
any thing to ask ? do not hesitate to ask.
http://doctor.healthcaremagic.com/doctors/dr-ganesh/62888