What is Intraocular Melanoma?

Uvea Melanoma, or intraocular melanoma, is one of the common types of eye cancer. It is derived from melanocytes, which produce the eye's pigmentation. The uvea is an internal layer of the eye, consisting of three parts.

• The iris (the colored part of the eye)
• Ciliary body (regulates lens shape and produces aqueous humor)
• Choroid (vascular layer supplying blood to the retina)

About 80% to 90% of all melanomas in the eye occur in the choroid. This makes choroidal melanoma the most common form of melanoma. Ciliary body melanomas are less common but more likely to metastasize. Iris melanomas represent the least common type of ocular melanoma, but they tend to have better treatment outcomes than other forms of the disease.

Although intraocular melanoma is less common than skin melanoma, it remains a critical health threat because patients with this condition face potential liver metastasis. The biological characteristics of intraocular melanoma differ from those of cutaneous melanoma, and therefore, different methods of diagnosis and treatment are required.

Early diagnosis is an important factor in preserving vision and improving survival rates.

What are the Common Symptoms and Signs of Intraocular Melanoma?

Symptoms

Intraocular melanoma has no symptoms in its early stages. The disease manifests itself through regular eye check-ups when patients do not exhibit any symptoms. The tumor's growth leads to these symptoms:

• Blurred or distorted vision
• Sudden decrease in vision in one eye
• Flashes of light
• Floaters (spots, threads, or shadows in vision)
• Visual field loss (loss of side vision)
• A growing dark spot on the iris
• Change in pupil shape
• Sensation of pressure inside the eye

Tumors that cause retinal detachment result in sudden vision changes for affected patients. Ciliary body tumors may go unnoticed longer because they are hidden behind the iris.

Early disease does not typically cause pain, but secondary glaucoma may develop later when intraocular pressure increases.

When liver metastasis occurs, patients develop symptoms that include:

• Abdominal discomfort
• Unexplained fatigue
• Weight loss
• Jaundice in advanced cases

Because metastatic spread can occur years after initial treatment, ongoing surveillance is essential.

What Causes Uveal Melanoma and What are the Key Risk Factors?

The exact cause of intraocular melanoma remains unknown. The disease develops when genetic mutations affect melanocytes, leading them to grow uncontrollably.

The recognized risk factors include:

• Light-colored eyes (blue or green)
• Fair skin complexion
• Increasing age (most common between 50 and 70 years)
• Ocular or oculodermal melanocytosis
• Family history of melanoma
• Certain genetic mutations, such as BAP1

The connection between skin melanoma and ultraviolet light exposure remains unclear because the link between these factors has not been firmly established.

The molecular level of GNAQ and GNA11 gene mutations occurs within genes that most commonly exhibit these changes. Monosomy 3 chromosomal abnormalities lead to elevated risks for developing metastatic diseases.

How is Uveal Melanoma Diagnosed and Evaluated?

Accurate diagnosis requires both ophthalmologic assessment and imaging tests.

Comprehensive Eye Examination

An ophthalmologist performs:

• Dilated fundus examination
• Slit-lamp biomicroscopy
• Indirect ophthalmoscopy

These allow direct visualization of intraocular masses.

Ocular Ultrasound

Ultrasound (A-scan and B-scan) is one of the most important diagnostic tools. The system helps to evaluate which of the following tumor characteristics:

• Tumor thickness
• Internal reflectivity
• Tumor shape (dome-shaped or mushroom-shaped)
• Presence of extraocular extension

Ultrasound findings often allow physicians to establish a diagnosis without the need for biopsies.

Optical Coherence Tomography (OCT)

OCT generates high-resolution cross-sectional retinal images that help identify subretinal fluid associated with retinal defects.

Fundus Photography

The sequential photographs allow monitoring of tumor progression over time.

Fluorescein Angiography

This imaging test evaluates tumor blood supply and retinal circulation changes.

MRI or CT Scan

MRI of the orbit is useful for assessing:

• Tumor extension
• Optic nerve involvement
• Spread beyond the eyeball.

MRI is generally preferred over CT for soft tissue evaluation.

Biopsy & Genetic Testing

Fine-needle aspiration biopsy (FNAB) may be performed to:

• Confirm diagnosis in uncertain cases.
• Obtain tissue for genetic analysis.
• Determine metastatic risk

Gene expression profiling and chromosomal analysis help classify tumors into low-risk or high-risk categories for metastasis.

What are the stages of Uveal Melanoma?

The process of staging depends upon the following factors:

• Tumor thickness
• Basal diameter
• Involvement of adjacent structures
• Presence of metastasis

Liver imaging with ultrasound, CT, or MRI is the standard of care, as the liver is the primary site of metastases.

What Treatment Options are available for Uveal Melanoma?

The decision about which treatment to use is based on evaluating the tumor's size and location, the patient's visual acuity, and overall health. The primary objectives of the treatment program involve controlling tumors while maintaining eyesight when feasible to prevent the spread of cancer to other body parts.

Radiation Therapy

Doctors prefer radiation therapy as the standard treatment for patients who have tumors that reach a size between small and large.

Plaque Brachytherapy

The procedure involves three steps:

• The doctor performs an operation to put a small radioactive plaque on the eye's outer wall.
• The procedure delivers targeted radiation directly to the tumor.
• The plaque is removed after a few days.

The technique enables doctors to help many patients maintain their eye tissue.

The treatment can result in various side effects, which include:

• Radiation retinopathy
• Cataract formation
• Optic nerve damage
• Gradual vision decline

Proton Beam Therapy

The system uses proton therapy to deliver focused radiation that causes little harm to nearby tissues. The system effectively treats tumors near critical brain structures, such as the optic nerve.

Surgery

Doctors offer two surgical options to treat patients:

Local Tumor Resection

The procedure is reserved for patients with small tumors in areas of the body that doctors can easily access.

Enucleation

The complete removal of the eye requires doctors to follow these circumstances:

• The tumor has reached a massive size.
• The patient experiences extreme agony.
• All remaining vision capacity has disappeared.
• He shows signs of having extensive extraocular cancer spread.

A prosthetic eye provides an effective solution to restore the patient's facial appearance after they undergo enucleation surgery.

Laser Therapy

Doctors can use laser treatments that include transpupillary thermotherapy (TTT) for treating very small tumors, or they can combine these treatments with radiation therapy.

Treatment for Metastatic Disease

Metastatic intraocular melanoma usually spreads first to the liver.

The treatment program presents doctors with these management methods:

• Doctors use systemic immunotherapy.
• Doctors use targeted therapy.
• Doctors use liver-directed therapies.
• Doctors use clinical trial enrollment.

Doctors use immune checkpoint inhibitors as immunotherapy drugs in some cases, but uveal melanoma shows different responses compared to skin melanoma.

Doctors use liver-directed treatments to perform embolization, or they deliver chemotherapy directly to the targeted area inside the body.

What are the Complications for Uveal Melanoma?

The presence of a tumor or the methods used to treat it can lead to the development of complications.

The potential complications that might arise include:

• The patient's eyesight loss is irreversible.
• The person experiences retinal detachment.
• Development of secondary glaucoma.
• The body suffers from radiation damage.
• Surgery leads to visible changes in appearance.
• The patient experiences mental distress.

Identifying complications early helps enhance the patient's overall quality of life.

What is Outlook / Prognosis of Uveal Melanoma?

The prediction about the patient's health depends on these medical factors:

• The tumor's size and thickness measurements.
• The eye location where the tumor exists.
• The genetic profile of the patient.
• The patient shows chromosomal abnormalities.
• The condition of the cancer has spread beyond the initial tumor site.

Small iris melanomas show better treatment results than larger choroidal and ciliary body melanomas, which have higher chances of spreading to other body parts.

Patients have a 30 percent to 50 percent chance of developing metastatic disease as their condition progresses. The presence of high-risk genetic characteristics considerably raises the likelihood of developing metastatic disease.

Patients need to undergo multiple follow-up tests, which include:

• Doctors conduct eye examinations.
• The patient needs liver imaging every 6 to 12 months.
• Liver function tests are required for assessment.
• Doctors monitor for any signs of systemic symptoms.

Early detection of metastasis enables health professionals to provide treatment without delay.

What is Long-Term Follow-Up Strategy for Uveal Melanoma?

The typical surveillance process includes these activities:

• Doctors require patients to undergo ophthalmic evaluation every 3-6 months.
• Doctors use imaging studies to check the status of previously treated tumors.
• The patient needs to undergo liver screening tests.
• Doctors need to check for radiation-related issues.
• The patient requires visual rehabilitation support.

Metastasis may take time to develop, and hence, regular follow-up visits with healthcare professionals are recommended for many years to come.

Why choose Tender Palm Super-Speciality Hospital for Uveal Melanoma or Intraocular Melanoma Treatment in Lucknow, India?

Tender Palm Super-Speciality Hospital offers advanced Uveal Melanoma or Intraocular Melanoma treatment in Lucknow, India, at an affordable cost. We have a team of experienced ophthalmological surgeons and oncology specialists who provide accurate diagnosis and both non-surgical and surgical treatment options including plaque brachytherapy, proton beam radiation, and surgical enucleation procedures. Our Ophthalmology and Oncology team has decades of experience in successfully treating Uveal Melanoma or Intraocular Melanoma in Lucknow, India.

To seek an Expert consultation for Uveal Melanoma or Intraocular Melanoma Treatment in Lucknow, India:

Call us at +91-9076972161
Email at care@tenderpalm.com

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