Pathophysiology of brain tumors: Due to causes like chemicals and radiation exposure
Irritation and damage to cell structure
As adaptive mechanism, changes in cell morphology occurs
as radiation exposure continue, the changes become irreversible causing gene mutations in DNA
inactivation of tumor supressor genes and activation of oncogenes
uncontrolled cell division and decreased apoptosis
hyperplasia of brain cells
brain tumors
disruption of brain tissue causes displacement and herniation of brain tissue
Compression of ventricles
Obstruction of CSF flow
Compression of blood flow to brain
Obstruction of blood flow to brain Cerebral hypoxia
Increases accumulation of CSF
Increased intracranial pressure
Anaerobic metabolism
Lactic acid accumulation
Loss of consciousness and coma