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Squamous cell carcinoma (SCC) of the eyelid is a skin cancer that starts in squamous cells on the eyelid or lid margin. It can look like a scaly patch, a firm bump, or a sore that does not heal. The tumor can grow into nearby tissue if untreated, and it can spread in higher-risk cases. Early diagnosis and removal are linked with better outcomes and smaller repairs.
read more about squamous cell carcinoma eyelid ...Long-term ultraviolet (UV) exposure is a major risk factor because the eyelids receive sun exposure over many years. Fair skin, older age, and a history of significant sunburns raise risk. Immune suppression, such as from certain medicines or medical conditions, can also increase risk. Prior radiation exposure, chronic scarring, or long-standing inflammation can play a role in some cases. A clinician also considers a history of skin cancers elsewhere because SCC risk can cluster in sun-damaged skin.
A persistent scaly patch, crusted plaque, or firm nodule on the eyelid that does not resolve can be a warning sign. The lesion can ulcerate, bleed easily, or develop a raised, rolled edge as it enlarges. Lash loss near the lesion or distortion of the lid margin can happen when the tumor involves follicles or lid structures. Some cases mimic chronic blepharitis, with redness and irritation that does not improve with routine care. Any growing lesion on the eyelid, especially near the lash line, should be checked.
Diagnosis is made with a biopsy, where a small sample is removed and examined under a microscope. The eye doctor or dermatologist also checks the full eyelid margin and nearby skin to look for additional lesions. Assessment includes looking for signs of deeper invasion, such as fixation, lid malposition, or involvement of the tear drainage area. High-risk tumors may prompt evaluation of nearby lymph nodes based on size, location, and pathology features. Imaging is considered when deeper spread is suspected.
Surgical removal is the main treatment, with techniques focused on complete excision while preserving eyelid function. Mohs micrographic surgery is often used for eyelid-area cancers because it checks margins during the procedure and can spare healthy tissue. Standard excision with margin control is another approach, and reconstruction is planned based on the defect size and location. Radiation therapy is sometimes used when surgery is not possible or as an add-on in select higher-risk cases. Long-term skin surveillance is recommended because new lesions can develop in sun-damaged areas.
It can be. Many cases are treatable when found early, but untreated SCC can invade nearby tissue and, in higher-risk cases, spread beyond the eyelid. Prompt evaluation is the safest step for any suspicious eyelid lesion.
It can look like a scaly or crusted patch, a firm bump, or an ulcer that does not heal. Lash loss, bleeding, or a persistent sore along the lid margin can also occur. A biopsy is needed for confirmation.
Yes, Mohs surgery is commonly used for eyelid SCC because it can confirm clear margins while limiting the amount of tissue removed. The choice depends on tumor size, location, and pathology features.
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Squamous cell carcinoma of the eyelids. PubMed Central (PMC). https://pmc.ncbi.nlm.nih.gov/articles/PMC1771324/. Date Accessed February 4, 2026.
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