1) A 29-year-old male presented with severe headache and was found to have suffered an aneurysmal subarachnoid hemorrhage from a ruptured anterior communicating artery aneurysm. 2) A 29-year-old female with a history of seizures and blindness after birth was diagnosed with posterior reversible encephalopathy syndrome. 3) A head trauma case showed a right frontal epidural hematoma, right frontal subgaleal hematoma, and diffuse cerebral edema.

2. Quiz 1Quiz 1
29-year-old male patient presented with29-year-old male patient presented with
severe headache.severe headache.

3. Subarachnoid hemorrhageSubarachnoid hemorrhage
AnswerAnswer

4. CT angiography for same patientCT angiography for same patient

5. ACOM aneurysm ruptureACOM aneurysm rupture
AnswerAnswer

6. Quiz 2Quiz 2
29-year-old female patient with history of29-year-old female patient with history of
acute seizures and blindness after birth.acute seizures and blindness after birth.

7. Posterior reversiblePosterior reversible
encephalopathy syndromeencephalopathy syndrome
(PRES(PRES((
AnswerAnswer

8. Quiz 3Quiz 3
Head trauma.Head trauma.
Case Courtesy ofCase Courtesy of Dr MoatzDr Moatz
SolimanSoliman

9. Right frontal epidural hematomaRight frontal epidural hematoma
Right frontal subgaleal hematomaRight frontal subgaleal hematoma
Diffuse cerebral edemaDiffuse cerebral edema
AnswerAnswer

10. Quiz 4Quiz 4
Head trauma.Head trauma.
Case Courtesy ofCase Courtesy of Dr Abdel MotalabDr Abdel Motalab

11. Hypertensive cerebral hematomaHypertensive cerebral hematoma
with intraventricular extensionwith intraventricular extension
AnswerAnswer

13. Right temporal chronic infarctionRight temporal chronic infarction
AnswerAnswer

15. PneumomediastinumPneumomediastinum
AnswerAnswer

16. Petrous bone fracturePetrous bone fracture

17. Petrous bone fracturePetrous bone fracture
Horizontal (Otic capsule involving fractureHorizontal (Otic capsule involving fracture((
Right and left axial petrous temporal bone CT. Right axial CT shows a medial subtype of horizontalRight and left axial petrous temporal bone CT. Right axial CT shows a medial subtype of horizontal
temporal bone fracture. There is a fracture of the posterior petrous surface (white arrow) extendingtemporal bone fracture. There is a fracture of the posterior petrous surface (white arrow) extending
anteriorly through the fundus of the internal auditory canal to the geniculate fossa of the facial nerve (blackanteriorly through the fundus of the internal auditory canal to the geniculate fossa of the facial nerve (black
arrow). Separate fracture through the petrous apex indicated by arrowhead. Left axial CT shows a lateralarrow). Separate fracture through the petrous apex indicated by arrowhead. Left axial CT shows a lateral
subtype of horizontal temporal bone fracture. There is a fracture of the posterior petrous surface (whitesubtype of horizontal temporal bone fracture. There is a fracture of the posterior petrous surface (white
arrow) lateral to the internal auditory canal. It involves the vestibule and extends through the tympanicarrow) lateral to the internal auditory canal. It involves the vestibule and extends through the tympanic
segment of the facial nerve canal (black arrow). The fracture exits through the anterior wall of the middlesegment of the facial nerve canal (black arrow). The fracture exits through the anterior wall of the middle
ear cavity into the squamous temporal boneear cavity into the squamous temporal bone

18. Longitudinal (Otic capsule sparing fractureLongitudinal (Otic capsule sparing fracture((

19. Orbital EmergencyOrbital Emergency
Orbital traumaOrbital trauma Orbital non traumaticOrbital non traumatic
emergencyemergency

20. Orbital bony boundariesOrbital bony boundaries

21. Orbital anatomyOrbital anatomy

22. Orbital traumaOrbital trauma
1.1. Orbital bony boundaryOrbital bony boundary
fractures.fractures.
2.2. Globe injury: anteriorGlobe injury: anterior
chamber injury, lenschamber injury, lens
dislocation, intravitrousdislocation, intravitrous
hemorrhage, globe rupture.hemorrhage, globe rupture.
3.3. Extra-ocular muscle injuryExtra-ocular muscle injury
4.4. Optic nerve injuryOptic nerve injury
5.5. Intra-orbital hemarrhageIntra-orbital hemarrhage

23. Orbital bony traumaOrbital bony trauma
Orbital Blowout fractureOrbital Blowout fracture

24. Orbital floor blow out fractureOrbital floor blow out fracture

25. Medial blow out fractureMedial blow out fracture

26. Orbital roofOrbital roof

27. Lateral Orbital wall fractureLateral Orbital wall fracture

28. Globe injuriesGlobe injuries
Anterior chamber injuryAnterior chamber injury

29. Lens injuriesLens injuries
Lens subluxationLens subluxation Lens dislocationLens dislocation

30. Vitreous hemorrhageVitreous hemorrhage

31. Rupture globeRupture globe

32. Optic nerve injuryOptic nerve injury

33. Extra-ocular muscle injuryExtra-ocular muscle injury

34. Carotid cavernous fistulaCarotid cavernous fistula

36. Orbital penetrating injuryOrbital penetrating injury
Foreign bodiesForeign bodies

38. Nasal fracturesNasal fractures

40. CTCT

41. Mandibular fracturesMandibular fractures

44. Guardsman fractureGuardsman fracture

45. Isolated facial bone fracturesIsolated facial bone fractures