Transcript PowerPoint Sunusu

Optic canal
Optic nerve
Opthalmic artery
Canalis opticus
N. opticus CN (Cranial nerve) II
A. opthalmica
What happens when there is pathology affecting the optic canal?
Article: Meningiomas Involving the Optic Canal
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Superior orbital fissure Fissura orbitalis superior
Oculomotor nerve
Trochlear nerve
Opthalmic nerve
Abducens (abducent) nerve
Superior opthalmic vein
N. oculomotorius (CN III)
N. trochlearis (CN IV)
N. opthalmicus (V1, branch of CN V)
N. abducens (CN VI)
V. opthalmica superior
What happens when there is pathology affecting the superior orbital
fissure? Superior orbital fissure syndrome
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Foramen rotundum
Maxillary nerve
Foramen rotundum
N. maxillaris (CN V2, branch of CN V-trigeminal nerve)
What happens when there is pathology affecting the foramen rotundum?
Trigeminal neuralgia is caused by maxillary and mandibular nerve entrapment: greater
incidence of right-sided facial symptoms is due to the foramen rotundum and foramen ovale
being narrower on the right side of the cranium.
Trigeminal neuralgia
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Foramen ovale
Mandibular nerve
Foramen ovale
N. mandinbularis (V3, branch of CN V)
What happens when there is pathology affecting the foramen ovale?
See the previous slide
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Foramen spinosum
Medial meningeal artery
Foramen spinosum
A. meningea media (branch of maxillary artery)
What happens when there is pathology affecting the foramen spinosum?
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Multiple Middle Meningeal Artery Aneurysms A Case Report
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Epidural hemorrhage
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Carotid canal
Internal carotid artey
Internal carotid plexus
Canalis caroticus
A. carotis interna
Plexus caroticus internus
What happens when there is pathology affecting the carotid canal?
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Internal carotid artery agenesis: diagnosis, clinical spectrum, associated conditions
and its importance in the era of stroke interventions.
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Bilateral internal carotid artery hypotrophy in malignant osteopetrosis.
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Internal auditory meatus (canal)
Facial nerve
Vestibulocochlear nerve
Artery of labyrinth
What happens when there is pathology affecting
the internal auditory canal?
Acoustic Neuroma
X Stylomastoid foramen: CN VII Bell’s palsy
Meatus acusticus internus
N. facialis ( CN VII)
N. vestibulocochlearis (CN VIII)
A. labyrinthi (branch of basilar artery)
The internal ear is the essential part of the organ of hearing, receiving
the ultimate distribution of the auditory nerve. It is called the
labyrinth, from the complexity of its shape.
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Jugular foramen
Foramen jugulare
Inferior petrosal sinus
Glossopharyngeal nerve
Vagal nerve
Accessory nerve
Sigmoid sinus
Posterior meningeal artery
Sinus petrosus inferior
N. glossopharyngeus (CN IX)
N. vagus (CN X)
Nervus accessorius (CN XI)
Sinus sigmoideus
A. meningea posterior
What happens when there is pathology affecting the jugular foramen?
Vernet's syndrome
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Hypoglossal canal
Hypoglossal nerve
Canalis hypoglossi
N. hypoglossus (CN XII)
What happens when there is pathology affecting the hypoglossal canal?
Solitary Fibrous Tumor of the Hypoglossal Nerve
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Foramen magnum
Foramen magnum
Medulla oblongata
Meninges
Vertebral arteries
Spinal root of accessory nerve
Medulla oblongata
Meninges
Aa. Vertebrales
Radix spinalis n. accessorius
What happens when there is pathology affecting the foramen magnum ?
Foramen magnum tumor--the diagnosis and surgical approach
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