C43.122

Clinical Causes: Prolonged exposure to ultraviolet (UV) rays from the sun or tanning beds. Fair skin that is more susceptible to UV damage. History of sunburns or excessive sun exposure. Presence of atypical moles or a history of skin cancers. Genetic predisposition or family history of melanoma. Immunosuppression, which can reduce the body's ability to fight off abnormal cell growth.

Key Symptoms: A new or changing pigmented spot or mole on the eyelid. A sore that does not heal or heals and then reopens. A lesion that appears irregular in shape and uneven in color. Swelling, redness, or a lump on the eyelid or near the canthus. Crusting or bleeding from a spot or lesion on the eyelid. Changes in eyelid appearance, including asymmetry or distortion.

Diagnosis Path: Diagnosis typically involves a thorough eye and skin examination, where a healthcare provider inspects the eyelid for suspicious moles or lesions. To confirm melanoma, a biopsy is performed, where a small tissue sample is taken and examined microscopically for cancerous cells. Additional imaging tests, such as ultrasound, MRI, or CT scans, may be used to determine whether the cancer has spread beyond the eyelid. In some cases, lymph node evaluation is necessary to check for metastasis.

Treatment Protocols: Treatment options depend on the size, location, and stage of the melanoma. Common approaches include: - Surgical excision to remove the tumor and some surrounding tissue to ensure complete removal. - Mohs micrographic surgery, a precise technique that minimizes tissue loss and ensures complete tumor removal. - Sentinel lymph node biopsy to assess potential spread if indicated. - Adjuvant therapies such as immunotherapy or targeted therapy for more advanced cases. - Regular follow-up examinations to monitor for recurrence or new melanomas. The goal of treatment is to eradicate the cancer while preserving as much of the eyelid's function and appearance as possible.