C44.111

Clinical Causes: Prolonged exposure to ultraviolet (UV) radiation from sunlight or tanning beds Fair skin, which has less melanin to protect against UV damage History of frequent sunburns or sun exposure without protection Older age, as BCC risk increases with age Weakened immune system, which reduces the body's ability to fight abnormal cell growth Chronic skin injuries or scars may sometimes predispose to skin cancers Genetic factors or personal/family history of skin cancers

Key Symptoms: A persistent, non-healing sore or patch on the eyelid or surrounding skin Pearl-like or waxy bump that may have visible blood vessels Areas of skin that are raised, firm, or scaly Small, shiny, or translucent nodules near the eyelid Redness or swelling around the affected area In some cases, the lesion may bleed or develop crusts Progressive enlargement or growth over weeks or months

Diagnosis Path: Diagnosis involves a thorough clinical examination by a healthcare provider, who may assess the lesion's appearance and history. A biopsy is usually performed, where a small sample of tissue from the lesion is removed and examined under a microscope to confirm the presence of basal cell carcinoma. Additional imaging tests are rarely necessary but may be used if the cancer appears to have invaded deeper tissues or spread beyond the eyelid area.

Treatment Protocols: Treatment options aim to remove the cancerous tissue and preserve eyelid function and appearance. Common approaches include: - Surgical excision, often with techniques like Mohs micrographic surgery, which allows precise removal of cancer while sparing healthy tissue. - Cryotherapy, where extreme cold is applied to destroy cancer cells. - Topical medications, such as 5-fluorouracil or imiquimod, may be considered for superficial lesions. - Radiotherapy might be used in certain cases where surgery isn't suitable. - Follow-up care involves regular skin examinations to monitor for recurrence or new skin cancer development.