3: Eyelids- Benign Lesions Flashcards
papule
a bump, palpable and circumscribed, elevated and less than 5 mm in diameter; may be pigmented, erythematous, or flesh-toned; example: elevated nevus (mole)
nodule
a lesion similar to a papule, with a diameter of 5 mm to 2 cm; may have a significant palpable dermal component; examples: fibroma, xanthoma, intradermal nevi
oculodermal melanocytosis (nevus of Ota)
hyperpigmentation of the eyelid, sclera, and uvea
oculodermal melanocytosis (nevus of Ota) etiology
- proliferation of melanocytes
- congenital
oculodermal melanocytosis (nevus of Ota) demographics
- most commonly affects Asian and African descent
- women > men
oculodermal melanocytosis (nevus of Ota) laterality
unilateral
oculodermal melanocytosis (nevus of Ota) symptoms
- asymptomatic
- gray, blue, or black area on eyelid
oculodermal melanocytosis (nevus of Ota) signs
- gray, blue, or black eyelid and/or facial hyperpigmentation (hyperpigmentation of the skin frequently follows the distribution of CN V1 and CN V2)
- patchy but extensive slate-gray or blue scleral hyperpigmentation
- variable amounts of uveal hyperpigmentation (darker iris, increased pigment in the angel, darker fundus)
- may have iris mammillations
- diffuse iris nevus
- scleral or choroidal melanocytosis most common
oculodermal melanocytosis (nevus of Ota) complications
- secondary open angle glaucoma (pigment blocks the TM)
- malignant potential, may evolve to melanoma (most common melanoma is uveal)
oculodermal melanocytosis (nevus of Ota) management
- monitor for glaucoma (ONH evaluation with DFE, OCT, GCC, HVF 24-2)
- monitor for melanoma (SL exam, ASeg photos)
- if symptomatic/cosmesis, refer out for laser therapy for skin discoloration (may cause scarring, hyperpigmentation may recur)
oculodermal melanocytosis (nevus of Ota) clinical pearls:
- _____ are least likely to have condition, but most likely to develop melanoma
- if only the sclera and uvea is involved, known as _____ (same risk for glaucoma and transformation into uveal melanoma)
- if only the sclera is involved, known as _____ (typically bilateral, small patches of slate-gray scleral pigmentation; benign condition)
Caucasians;
ocular melanocytosis;
scleral melanocytosis
xanthelasma
benign, lipid-laded plaques at the level of the dermis on the eyelids
xanthelasma etiology
may be associated with hyperlipidemia/hypercholesterolemia
xanthelasma demographics
typically occurs over the age of 40
xanthelasma laterality
bilateral»_space; unilateral
xanthelasma symptoms
- asymptomatic, cosmesis
- yellow plaques around the eyes
xanthelasma signs
- multiple»_space; singular, soft yellow plaques
- typically involves the medial canthus upper eyelids > lower eyelids
xanthelasma management
- monitor if asymptomatic
- if symptomatic (cosmesis), consider scope of practice for removal vs. referral out for removal (size); surgical excision, cryotherapy, laser treatment, chemical cauterization; potential for recurrence, suggests uncontrolled hypercholesterolemia
- if no previous diagnosis of hypercholesterolemia and patient is under 40, consider ordering lipid panel or refer to PCP
port-wine stain (nevus flammeus)
benign, dilated capillaries in the dermis
port-wine stain (nevus flammeus) etiology
- congenital
- may be associated with Sturge-Weber syndrome (if hemifacial dermatome pattern, think Sturge-Weber)
port-wine stain (nevus flammeus) demographics
present at birth
port-wine stain (nevus flammeus) laterality
unilateral > bilateral
port-wine stain (nevus flammeus) symptoms
red birthmark, cosmesis
port-wine stain (nevus flammeus) signs
- flat, smooth, pink patch (can thicken and darken to a more purple color over time)
- grows proportionately with the child
- tends to follow dermatomal distribution
- lesion is more prone to bleeding if scratched or injured
port-wine stain (nevus flammeus) management
- none if asymptomatic
- if symptomatic, refer out for laser surgery (causes the capillaries to burst, leads to gradual lightening, multiple laser treatments are necessary, cannot completely remove the lesion)
port-wine stain (nevus flammeus) clinical pearls:
-can occur _____
anywhere on the skin; tend to appear on one side of the face, head, and neck, but may also affect the abdomen, legs, or arms
Sturge-Weber syndrome
- congenital neurological disorder caused by a gene mutation
- features include facial port wine stain, choroidal hemangioma, intracranial vascular abnormalities, unilateral glaucoma (due to increased venous pressure)
- port-wine stain that involves V1 and V2 is more likely associated with Sturge-Weber
capillary hemangioma
benign vascular tumor
capillary hemangioma etiology
proliferation of vascular endothelial cells
capillary hemangioma demographics
apparent during first few months of life (usually 3-6 months)
capillary hemangioma laterality
unilateral
capillary hemangioma symptoms
red or blue area on eyelid
capillary hemangioma signs
- cutaneous lesion (bright red nodule; blanch with pressure)
- subcutaneous lesion (bluish discoloration underneath normal skin)
- enlarge and/or change color with crying
- ptosis
- induced astigmatism
capillary hemangioma complications
amblyopia (refractive or deprivation)