eyelid, orbit and lacrimal disorders Flashcards
what is the most common lump found in the eyelid
chalazion
what is a chalazion
a mebomian cyst
are chalazion painful
no
management of chalazion
warm compress
chloramphenicol ointment
what does recurrent chalazia indicate
underlying blepharitis
acne rosacea
what is a stye
infection of the lash follicle
what are cysts of sweat glands filled with
clear fluid
name of the cyst filled with clear fluid
cyst of Moll
what is the name of lipid secreting glands
cyst of Zeiss
what is the most common malignant tumour
basal cell carcinoma
where does basal cell carcinoma usually occur
lower lid
how does a basal cell carcinoma infiltrate
locally
features of basal cell carcinoma
pearly rolled edge
necrotic centre
symptoms of blepharitis
gritty eyes
sore eyelids
crust around lid margin
associated skin disease with blepharitis
rosacea
eczema
psoriasis
where is inflammation of dacryocystitis
medial over the lacrimal sac
what is proptosis
globe protrusion
what ptosis feature can be seen as a secondary syndrome of carcinoma of lung
Horner syndrome
what muscle raises upper eye lid
levator muscle
is elevator muscle controlled by
CN3
what controls Muller muscle
sympathetic nerve
how are the levator muscle and muller muscle attached to
fibrous plate in the eye lid
what should you suspect if patient presents with ptosis that worsens throughout the day
myasthenia gravis
what nerve palsy may present as ptosis
3rd nerve palsy
what else along with ptosis can suggest 3rd nerve palsy
abducted eye
dilated pupil
what nerve is damaged in Horner syndrome
sympathetic
what are lid lag and lid retraction features of
thyroid disease
1st line treatment if blockage of lacrimal sac
syringing
2nd line treatment for blockage of lacrimal sac
dacryocystorhinostomy (hole is made into the nose from the lacrimal sac)
what happens if the inferior rectus gets entrapped
restriction of eye elevation
what causes s-shaped deformity of the upper eye lid
neurofibroma type 1
what is Gorlin-Goltz syndrome
nevoid BCC syndrome
rare autosomal dominant disorder
what is Muir-Torre syndrome
rare AD condition
predisposes to BCC, sebaceous gland carcinoma
where is BCC found in eye
lower eye lid
where does BCC tumour arise
from the basal layer of the epidermis
features of a nodular BCC
shiny
firm
pearly nodule
slow growing
features of modulo-ulcerative BCC
centrally ulcerated
pearly raised rolled edge
dilated and irregular blood vessels (telangiectasia)
features of sclerosing BCC
more difficult to see and differentiate
what are pre cursors of SCC
Bowens
actinic keratosis
intraepidermal carcinoma
what patients have increased risk of SCC
immunocompromised
aids
renal transplantation
xeroderma pigmentosum
where is an SCC commonly found on the eye
lower eye lid
histopathology of SCC
keratin pearls and intercellular bridges
features of keratocanthoma
pink dome-shaped hyperkeratotic lesion often on lower eye lid
who is most likely to get sebaceous gland carcinoma
affects elderly with predisposition for females
where does sebaceous gland carcinoma arise
mebomian glands
histopathology of sebaceous gland carcinoma
pale foamy lipid-containing cytoplasm with hyper chromatic nuclei
where does a sebaceous gland carcinoma occur
upper eyelid
what is yellowish material within the tumour suggestive of
sebaceous gland carcinoma
what can SGC be confused with
chronic or recurrent localised mebomian gland inflammation
