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PATHOLOGICAL GROUPS (BRAIN/HEAD) > SKULL BASE > Flashcards

SKULL BASE Flashcards

1
Q

Whats the importance of MRI in the study of skull base lesions?

A
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2
Q

When do u consider the enhancement of dura to be dural invasion? What`s the importance?

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3
Q

Major points on perineural spread in H&N malignancies?

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4
Q

Name the 4 categories of skull base lesions?

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5
Q

Nme all of the strutures surrounding the Crib. Plate in coronal view?

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6
Q

Keros classification is applied to what?

Whats the maximum grade and its meaning?

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7
Q

Where is located foramen cecum?

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8
Q

Whats passes through:

  • Foramen caecum?
  • Foramina of cribiform plate?
  • Optic canal?
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9
Q

Name the ANTERIOR skull base lesions?

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10
Q

Major points of Encephalocele?

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11
Q

?

A

Fronto-ethmoidal Encephalocele.

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12
Q

Brain abnormalities possibly associated with Encephalocele?

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13
Q

Description and dx?

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14
Q

Major topics on Areas of Arrested Pneumatization?

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15
Q

Explain process of pneumatisation of the paranasal sinus?

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16
Q

Arrested pneumatization in CT/MRI?

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17
Q

?

A

Arrested Pneumatisation

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18
Q

DDx of Arrested Pneumatization?

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19
Q

Major topics on Fibrous Displasia?

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20
Q

Whats the McCune Albright syndrome?

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21
Q

What sinus is more affected by Mucoceles?

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22
Q

?

A

ATTENTION

No continuation with intracranial compartment!

Different from encephalocele!!!

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23
Q

Major topics on Fungal Sinusitis?

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24
Q

Types of Fungal Sinnusitis?

A

Mucosa affection will have traduction on imaging

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25
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Allergic Fungal Sinusitis
26
Allergic Fungal sinusitis in CT/MRI?
27
Imaging features of Allergic Fungal Sinusitis?
28
Major points on PARANASAL MYCETOMAS? Imaging features?
29
Causes of ACUTE INVASIVE FUNGAL SINUSITIS?
30
ACUTE vs CHRONIC Invasive Fungal Sinusitis in CT?
31
Possible alterations of bone in Fungal Sinusitis?
32
Causes of Skull Base CSF Leaks?
33
In the lesions of Anterior Skull Base, enumerate the ANTERIOR CRANIAL TUMORS?
34
MT Inverted Papilloma?
35
Ddx Anterochoanal Polyp VS Inverted Papilloma?
36
Imaging MRI of Inverted Papillomas?
37
?
Inverted Papilloma with typical convoluted pattern.
38
Is there bone destruction in the benign Inverted Papilloma?
39
MT Sinonasal Malignant Tumoral Lesions?
40
Major CT findings in Malignant Sino-nasal Tumor?
41
?
Dx: Malignant Lesion of Sinonasal region More common are....
42
?
43
Lymphoma in the SINUS vs NASAL CAVITY are of the same type?
Sinus (lateral) = B Nasal (central) = T (like a nose)
44
Sino-nasal lymphoma in CT/MRI?
45
DDx Sinonasal Lymphoma?
46
MT on ESTHESIONEUROBLASTOMA?
47
Olfactary Neuroblastoma: - Where is the waist? Why? - What is the pathognomonic feature? - Enhancement? Calcium? - Metastases?
48
% of metastases in Olfactory Neuroblastoma?
49
?
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Olfactory Groove Meningioma
51
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Olfactory Groove Meningioma
52
5 malignant criteria of Meningioma?
53
MIDDLE SKB ANATOMY which bones form this area?
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this space is connecting which 2 fissures?
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foramen lacerum mp?
69
what passes foramen ovale?
70
what passes foramen rotundum
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...
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all the central skb lesions
73
signs of skb fx
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SELLAR AND PARASELLAR LESIONS enumerate
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INVASIVE PITUITARY ADENOMA ddx
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PARASELLAR MENINGIOMA what symptom can occur if the cavernous sinus is involved
82
what causes the mottled pattern of meningioma?
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meckel cave meningioma VS trigeminal neuroma
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lesions within the Meckel cave?
92
trigeminal schwannomas different locations which one is the most common they can be associated with which disease
nf 2
93
ddx of small ganglionic trigeminal schwannomas
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PARASELLAR ANEURYSMS mp
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SKB CHONDROSARCOMA predisposing conditions locations ddx
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RHABDOMYOSARCOMA mp affect normally which age group what histology associated w worst px
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RHABDOMYOSARCOMA points of origin % that reach intracranially % metastases
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PATHOLOGICAL GROUPS (BRAIN/HEAD) (10 decks)

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