MEDRADSC 3J03 Lecture Notes - Lecture 18: Hydrocephalus, Hematoma, Brainstem

• School: McMaster University
• Department: Medical Radiation Sciences
• Course: MEDRADSC 3J03
• Professor: Sandra Charbonneau

Document Summary

Levels of reduced consciousness: brain disorders - what happens, and symptoms, herniations, cerebral trauma - hematomas, cerebral trauma - cere(cid:271)ro(cid:448)as(cid:272)ular a(cid:272)(cid:272)ide(cid:374)ts (cid:894)cva"s(cid:895, vessel occlusions, hydrocephalus. Brai(cid:374) disorders - what happe(cid:374)s, a(cid:374)d sy(cid:373)pto(cid:373)s: most serious brain disorders will result in: Increased intracranial pressure (i. i. p: caused by edema of the brain, tumours (s. o. l. : space occupying lesions), hemorrhage, ventricular disorders: early stage symptoms: Later stages: headache (pressure, vomiting (post fossa pressure, dizziness, papilledema (increased pressure on the head to the optic nerve, pupils fixed & dilated. If tumours: surgery to remove (if still little pieces left, treat with radtherapy) If inoperable (if metastases): rad therapy and chemotherapy (palliative care) Herniations: her(cid:374)iatio(cid:374)s i. i. p. (increased intracranial pressure, commonly, medial surface of cerebrum, tumour displacing midline structures. Location: meninges/sp cord (about 25% of all meningiomas), parasagittal region (near/close to superior sagittal sinus) lateral convexities of hemispheres, venous channels/ base of skull, posterior fossa.