Hi,
Welcome to HealthCareMagic.com I am Dr.J.Mariano Anto Bruno Mascarenhas, and I am here to help you. I have read your question with care and understand your concerns.
The Cavity inside the skull is a closed cavity
So
Increase in volume of anything (blood,
hepatoma, fluid) will cause increase in pressure.
This has to be reduced
If the increase is very small, drugs can be used
If the increase is very much, surgery will be needed
Hope you found the answer helpful.
If you need any clarification / have doubts / have additional questions / have follow up questions, then please do not hesitate in asking again. I will be happy to answer your questions.
Best Wishes for Speedy Recovery
Let me know if I can assist you further.
Take care.