C69.00

Clinical Causes: Chronic exposure to ultraviolet (UV) light or sunlight. Prolonged exposure to environmental irritants such as smoke or dust. Immunosuppression, including conditions like HIV/AIDS or use of immunosuppressive medications. History of eye or skin cancers, suggesting a genetic or environmental predisposition. Certain genetic mutations that alter normal cell growth. Previous radiation therapy to the head or eye area.

Key Symptoms: A painless lump or thickening on the conjunctiva. Persistent redness or a red, raised lesion on the conjunctiva. Unusual growth or changes in the appearance of the eye surface. Localized swelling or irritation that does not resolve. Changes in the color or appearance of the conjunctiva or sclera. In some cases, blurred vision or decreased visual acuity depending on the tumor's size and location.

Diagnosis Path: Diagnostic evaluation typically involves a comprehensive eye examination, including slit-lamp microscopy, to closely inspect the conjunctiva and adjacent tissues. A biopsy is often performed to confirm malignancy, where a tissue sample is taken and examined microscopically. Imaging tests such as ultrasound, MRI, or CT scans may be utilized to assess the extent of the tumor and check for involvement of surrounding structures or distant metastases. Additional assessments might include blood tests to evaluate overall health and detect any metastasis.

Treatment Protocols: Treatment options for malignant neoplasm of the conjunctiva depend on the size, location, and extent of the tumor. Common approaches include: - Surgical excision: Precise removal of the tumor, often followed by cryotherapy or laser therapy to eradicate residual cancer cells. - Radiation therapy: Targeted radiation helps destroy remaining cancerous tissue, especially in cases where surgical removal is challenging. - Topical chemotherapeutic agents: Medications like mitomycin C or interferon eye drops may be used to treat superficial lesions. - Enucleation: Removal of the entire eye may be necessary in advanced or diffuse cases to control the disease. Follow-up care involves regular eye examinations to monitor for recurrence or metastasis, and supportive treatments to manage any side effects or complications associated with therapy.