C69.30

Clinical Causes: Genetic mutations that affect melanocyte cells within the choroid Family history of ocular melanoma or related cancers Exposure to ultraviolet (UV) light, although the link is less clear compared to skin melanomas Previous radiation therapy to the eye or head region Certain inherited genetic syndromes that predispose to melanoma

Key Symptoms: Seeing a dark spot, body, or color change in the eye (visual disturbance) The appearance of a shadow or curtain over part of the visual field Blurred or distorted vision Reduced vision in one eye Visible mass or pigmented lesion on the iris or inside the eye Flashes of light or floaters (less common)

Diagnosis Path: Diagnosis of malignant neoplasm of the unspecified choroid involves several steps, including detailed eye examinations and imaging studies. Techniques used may include: - Fundoscopy: to visualize the interior of the eye - Ultrasound scans: to assess the size and structure of the tumor - Optical coherence tomography (OCT): provides detailed images of eye tissues - Fluorescein angiography: to observe blood flow in the eye - Biopsy: occasionally performed to confirm the diagnosis, though often the diagnosis is made based on clinical and imaging findings Specialists such as ophthalmologists or ocular oncologists are typically involved in this process.

Treatment Protocols: Treatment options vary depending on the tumor's size, location, and extent. Common approaches include: - **Radiation therapy**: uses targeted radiation to destroy cancer cells, often in the form of brachytherapy (placing radioactive plaques near the tumor) - **Laser therapy**: employed to destroy small tumors or reduce tumor growth - **Surgical removal**: including procedures like enucleation (removal of the eye) in advanced cases - **Chemotherapy and targeted therapy**: less common but may be considered for systemic spread or specific genetic tumor markers - **Observation and monitoring**: for small or non-progressive tumors, regular follow-up may be recommended Multidisciplinary care involving ophthalmologists, oncologists, and radiologists is vital for optimal treatment planning.