Malignant Eyelid Tumors Flashcards
Four layers of eyelids:
SSTP
Skin and subcutaneous tissue including its adnexa
Striated muscle
Tarsus with the meibomian glands
Palpebral conjunctiva
True or False: Malignant tumors can’t arise from each of the eyelid layers.
False; Malignant tumors can arise from each of the eyelid layers.
Most eyelid tumors are of: “_____________” (mostly epidermal)
Cutaneous origin
Malignant eyelid tumors can be divided:
Epithelial tumors
Melanocytic tumors
The most common malignant eyelid tumors on Caucasians
Basal cell carcinoma
The most common malignant eyelid tumors on Asians
Sebaceous gland carcinoma
Different Types of Malignant Eyelid Tumors:
(NSS-MMK)
Nodular Basal Cell Carcinoma
Sclerosing Basal Cell Carcinoma
Squamous Cell Carcinoma
Meibomian Gland Carcinoma
Melanoma
Kaposi Sarcoma
The most common type of cancer to occur on the eyelid.
Nodular Basal Cell Carcinoma
Nodular Basal Cell Carcinoma usually appears on the _______ eyelid or near the inner fold of the eye as a firm, ______ nodule.
lower; pearly
The lesion in Nodular Basal Cell Carcinoma might be:
1.Early Nodular Basal Cell Carcinoma
2. Advanced Nodular Basal Cell Carcinoma
Pair the following:
1.Early Nodular Basal Cell Carcinoma
2. Advanced Nodular Basal Cell Carcinoma
a. shows slow progression
b. shows shiny, indurated nodule
1B, 2A
The lesion in Sclerosing Basal Cell Carcinoma might be:
a. Early Sclerosing Basal Cell Carcinoma
b. Advance Sclerosing Basal Cell Carcinoma
identify if it’s early sclerosing basal cell carcinoma or advance sclerosing basal cell carcinoma.
shows indurated plaques with loss of lashes
Early Sclerosing Basal Cell Carcinoma
identify if it’s early sclerosing basal cell carcinoma or advance sclerosing basal cell carcinoma.
Margins impossible to delineate
Advance Sclerosing Basal Cell Carcinoma
identify if it’s early sclerosing basal cell carcinoma or advance sclerosing basal cell carcinoma.
May mimic chronic blepharitis
early sclerosing basal cell carcinoma
identify if it’s early sclerosing basal cell carcinoma or advance sclerosing basal cell carcinoma.
shows spreads radially beneath normal epidermis
advance sclerosing basal cell carcinoma.
Second most common eyelid malignancy
Squamous Cell Carcinoma (SCC)
Malignant epidermal carcinoma arising from the squamous cell layer of the skin epithelium
Squamous Cell Carcinoma (SCC)
True or False:
Squamous Cell Carcinoma (SCC): Less than 6% of malignant eyelid neoplasms
False; Less than 5% of malignant eyelid neoplasms
Squamous Cell Carcinoma (SCC)
•Ocular and periocular region, it can affect the:
(CCE)
Conjunctiva, Cornea, Eyelid skin
The lesion in Squamous Cell Carcinoma might be:
- Nodular Squamous Cell Carcinoma
- Ulcerative Squamous Cell Carcinoma
identify what lesion in squamous cell carcinoma:
hard, hyperkeratotic nodules, may develop crusting fissures.
Nodular Squamous Cell Carcinoma
identify what lesion in squamous cell carcinoma:
- red base, borders sharply defined, induratedand elevated
Ulcerative Squamous Cell Carcinoma
Give 5 risks in Squamous Cell Carcinoma
•Aging
•Longstanding ultraviolet radiation exposure
•Oil derivatives and arsenic exposure
•Cigarette smoke exposure
•Human Papilloma Virus infection (HPV)
•Human Immunodeficiency Virus infection (HIV)
•Xeroderma pigmentosum
•Actinic keratosis (AK)
•Squamous intraepithelial neoplasia (Bowen’s disease)
•Albinism
•Old burns
•Chronic ulcers
•Immunosuppression