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EYE > Proptosis > Flashcards

Proptosis Flashcards

1
Q

Definition

A

Forward displacement of the eyeballs beyond the orbital margins

If associated w thyroid disease it is exophthalmos

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2
Q

Infective

A

Orbital cellulitis
Panophthalmitis
Cavernous sinus thrombosis

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3
Q

Inflammatory

A

Thyroid eye disease
Idiopathic orbital inflammatory disease
CVT
Wegener granulomatosis

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4
Q

Cystic lesion

A

Encephalocele
Sinus mucocele
Parasitic cyst

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5
Q

Tumors

A 
Dermoid cyst
Vascular lymphangioma
Hemangioma
Lymphoma lymph 
Optic nerve glioma
Meningioma
Isolated neurofibroma
 Lacrimal gland:
Adenoma
Carcinoma
Eyeball retinoblastoma malignant melanoma
Sinus carcinomoe
Neuroblastoma
Leukemia
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6
Q

Diagnosis

A

Age of onset
RB, Rhabdomyosarcoma
Dermoid cyst
Optic nerve glioma

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7
Q

Steps

Pseudoproptosis causes

A

High axial !myopia
Buphthalmos
Retraction of upper lid

Non axial
Tumors of paranasal sinus and lacrimal gland

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8
Q

Palpation

A

Lymphoid
Dermoid cyst
Neurofibroma

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9
Q

Pulsation

A

AV fistula

Meningocele

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10
Q

Changes in size

A

Orbital varices

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11
Q

Visual acuity

A

Keratopathy

Optic nerve involvement

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12
Q

History

A

Mode of onset
Acute:
Cellulitis, inflammatory orbital disease random to sarcoma
Chronic glioma

Painful infection inflammation carcinoma

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13
Q

Axial displacement

A 
Axial displacement (retrobulbar lesion)
Glioma
Mengioma
Cavernous hemangioma
Thyroid ophthalmopathy
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14
Q

Ocular motility

A

Restricted
Thyroid
Tumors
Neurology

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15
Q

Periorbital changes

A

Soft tissues such ad lid and conjunctiva

The fundus may be normal or show disc edema atrophy or optociliary shunt vessels

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16
Q

Exophthalmometry

A

Measures the protrusion of apex of cornea from outer orbital margin
10-20 mm symmetric
21 plus and diff of >2 mm is abnormal
Systemic exam to rule put thyroxicosis

17
Q

Investigation

A 
CBC ESR
Thyroid
ANCA
Ace
Casoni for hyatid cyst
X rays
Ultrasonography (solid infiltrative cystic)
CT MRI(soft tissue)
Orbital venography
Carotid angiography
FNAbiopsy
Incisional or excisional biopsy
18
Q

Treatment

A 
Medical
Surgery
Benign dermoid cyst
Exenteration
Removal of all structures of orbit including eyeball
Radiation

EYE (12 decks)

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