Eyelid Lesions Flashcards
what are 2 benign conditions?
hordeolum and chalazion
what is a hordeolum?
acutely presenting, erythematous tender bump within the eyelid
what is an external hordeolum?
infection of the glands of Zeiss/Moll or eyelash follicle
what is an internal hordeolum?
infection of meibomian glands
what is the treatment for a hordeolum?
reassure patient they are self-limiting and resolve in 1-2 weeks = warm compress and if needed topical antibiotic ointment (incision/drainage)
what is a chalazion?
lipogranulomatous inflammation, chronic, rubbery, painless localized swelling of eyelid
what is an external chalazion?
inflammation of Zeiss/Moll glands
what is an internal chalazion?
inflammation of meibomian glands
what is the treatment for a chalazion?
reassure patient most clear in weeks to months = warm compress or surgical incision/drainage or steroid injection
what is the definition of malignant?
it grows and invades adjacent tissues
what is the definition of metastatic?
infiltrates the blood vessels and lymphatic’s to spread throughout the body
where is the most prominent area of eyelid skin cancers? Where is the least likely?
44% = lower eyelid 19% = medial canthus 17% = eyebrow 16% = upper eyelid 4% = lateral canthus
what type of skin cancer is highly malignant and potentially lethal?
sebaceous cell carcinoma
where does a sebaceous cell carcinoma originate from?
meibomian glands of tarsal plate and glands of Zeiss
who usually gets a sebaceous cell carcinoma?
middle-aged or elderly patients
what type of carcinoma represents 90% or more of malignant eyelid tumors?
Basal cell carcinomas
what are the signs of a basal cell carcinoma?
small, slow-growing, firm, painless, raised, pearly nodule, telangiectasia (spider veins) and indurated (hardened)
what are the signs of a squamous cell carcinoma?
variable presentation - similar to BCC, flat plaque with everted edges, surface crusting, no surface telangiectasia (spider veins)
what type of carcinoma is faster growing and more likely to metastasize and recur locally?
squamous cell carcinoma
which type of eyelid lesion is the leading cause of death from all primary skin malignancies?
melanoma
what are the signs of a melanoma?
pigmented thickening of eyelid or extension of pigment from conjunctiva, variably pigmented, can change color, bleed or grow
what are the ABCDE signs you should watch for?
asymmetry, border, color, diameter, elevation/evolution