Common head CTs

2. http://www.med-ed.virginia.edu/courses/rad/headct/index.html

5. Acute subdural
 Acute
Acute subdural

7. Extradural = epidural
haematoma with midline shift
Limited by
sutures

8. http://quizlet.com/40218512/rapid-review-pathology-chapter-26-nervous-system-and-special-sensory-disorders-images-flash-cards/

10. Chronic Subdural (weeks)

12. Subacute subdural
(days to weeks)

14. Extra dural on the patient’s right
Traumatic subarachnoid blood on the patient’s left (probable contra coup)

16. Spontaneous subarachnoid bleed ,
probably from aneurysm.
Get a CT angiogram while they are still in
CT

18. Intraventricular haemorrhage
Usually secondary to
hypertension
Other causes eg bleed into a
metatasis

20. Ring enhancing lesion

21. Ring enhancing lesions
MAGIC DR L
M: metastasis
A: abscess
immunocompetent – usually bacterial direct head and neck vs
haemotogenous
Immunocompromised – toxoplasmosis, listeria, nocardia, aspergillus
Travel Hx
G: glioblastoma multiforme
I: infarct (subacute phase)
C: contusion
D: demyelinating disease
R: radiation necrosis or resolving haematoma
L: Lymphoma
Search for the source

23. Old lacunar infarct
eg thalamus, pons, internal capsule
Sensory and or motor deficits but no
change in LOC or comprehension

25. Day old cortical
ischaemic stroke
Eg whole MCA territory, dense paralysis and loss of sensation,
decreased LOC and comprehension

26. General care of the
acute head
Find the cause eg emboli
Treat the cause eg infective, immunocompromise
NBM
30 degrees head up
Normoxia
Normocapnia
Maintain hydration
Lower BP if extreme (see next slides)
Exclude urinary retention
Avoid pressure areas
Hypertonic saline, bicarb or mannitol if coning and
heading to theatre