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1 Flashcards

1
Q

Roof

A

lesser wing of the sphenoid, orbital plate of the frontal bone

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2
Q

Lateral

A

greater wing of the sphenoid, zygomatic

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3
Q

Floor

A

zygomatic, palatine, maxillary ZPM

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4
Q

Medial

A

palatine, ethmoid, lacrimal, maxillary PELM

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5
Q

Superior orbital fissure

A

greater-lesser. Lacrimal, frontal, trochlear n. Superior ophthalmic vein. n. III n. VI Nasocilary nn. Sympathetic fibers

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6
Q

Inferior orbital fissure

A

greater-maxilla. Maxillary, Zygomatic nerves. Pterygopalatine ganglion. Inferior opththalmic vein

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7
Q

Braley sign

A

muscle restriction in differential IOP test >=6mmHg

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8
Q

Proptosis

A

> =20mm, difference of 2-3mm

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9
Q

Dalrymple sign

A

lid retraction in primary gaze, polega on na nadmiernym rozszerzeniu szpary

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10
Q

Kocher sign

A

powieka unosi się szybciej niż gałka oczna, staring and frightened appearance

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11
Q

von Graefe

A

retarded descent of the upper lid on downgaze (lid lag)

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12
Q

Möbius sign

A

inability to maintain convergence of the eyes

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13
Q

Popow sign

A

palec z odległości około 30 cm, a następnie go obniża. Gdy nienadążająca za gałką oczną powieka opada zauważalnymi skokami

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14
Q

Stellwag’s sign

A

infrequent or incomplete blinking

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15
Q

Jellinek sign

A

wzmożona pigmentacja powiek

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16
Q

Rosenbach sign

A

drżenie zamkniętych powiek

17
Q

Bacterial orbital cellulitis - treatment

A

ceftazidime+metronidazol

18
Q

Acute dacryoadenitis - causes

A

idio, mumps, Epstein, CMV. less acute,may bi: IOID,sarcoidosis, Sjogren syndrome,thyroid,chronic infection

19
Q

Dermoid cyst - location

A

superotemporal, but deep may extend into inferotemporal fossa

20
Q

Anterior Encephalocele - location

A

superomedial, displaces globe forwards and laterally

21
Q

Posterior Encephalocele - how dislocates globe

A

forwards and downwards

22
Q

Primary orbital varices - location, complic, treatment

A

uni, upper nasal. hemor, thrombosis, n.II compres, fat atrophy, enophthalmos. Embolization, carbon dioxide laser

23
Q

Lymphangioma - location

A

anterior lymphangioma - upper nasal. bleed->chocolate cysts.

24
Q

Capillary hemangioma

A

superiorly, PHACE, 3F:1M, CT-finger-like, B-blockers, laser >2mm, INF2a, vincristine, cutting cautery, CO2 laser

25
Q

Kasabach-Merritt syndrome

A

Capillary hemangioma+thrombocytopenia

26
Q

most common orbital tumor in children

A

Capillary hemangioma

27
Q

most common orbital tumor in adults

A

Cavernous hemangioma

28
Q

well encapsulated orbital tumor

A

Cavernous hemangioma

29
Q

Cavernous hemangioma - location and how proptosis

A

lateral part of the muscular cone, uni axial proptosis

30
Q

pleomorphic lacrimal gland adenoma - other name

A

benign mixed-cell tumor

31
Q

pleomorphic lacrimal gland adenoma - location and how dislocates

A

superolateral eyelid, orbital lobe tumor - inferonasal dystopia, palpebral lobe tumor - grow anteriorly causing upper lid swelling without dystopia

32
Q

Lacrimal gland carcinoma - forms, age, dystopia, features

A

adenoid cystic (50%), pleomorphic adenocarcinoma, mucoepidermoid, squamous cell. middle age. inferonasal dystopia. pain, hypoesthesia (lacrimal nerve), CT-globular serrated

33
Q

Optic nerve glioma

A

pilocytic astrocytoma, spindle-shaped astrocytes and glial filaments, year-6.5, temporal or inferior dystopia. Glioblastoma-adults

34
Q

Optic nerve sheath meningioma

A

middle-aged F, 25% children, psammomatous, NF2, Hoyt-Spencer triad

35
Q

Lymphoma - location, features

A

any part of orbit, no symptoms, rubbery consistancy

36
Q

Rhabdomyosarcoma - age, location

A

90% under 16, average 7 years, superonasal or superior

37
Q

Langerhans cell histiocytosis meta

A

children, uni or bi osteolytic, supertemporal quadrant

38
Q

most common sinus invasion

A

maxillary

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