How do you measure the thickness of choroidal melanoma?

How is choroidal melanoma measured?

Ultrasonography is currently one of the most reliable techniques for measurement of choroidal melanomas (except in cases of anteriorly located tumors).

What is considered a large choroidal melanoma?

Large-sized Choroidal Melanoma:

Very large choroidal melanomas (greater than 22 mm width) may be treated by initial removal of the eye (enucleation). This is because the amount of radiation required to destroy a choroidal melanoma that fills most of the eye will likely be too much for the eye to tolerate.

What is LBD in measurement?

Purpose: To identify the most accurate ultrasonographic technique to measure the largest basal dimension (LBD) of choroidal melanoma. … Results: For straight-line measurements in the inner sclera, the lowest error was found when using two straight-line measurements (P = 0.118).

How long does it take for ocular melanoma to metastasize?

Uveal melanoma, the most common primary intraocular tumor,14 has an associated approximate 40% risk of metastasizing to the liver within 10 years of diagnosis of the primary tumor.

How fast do choroidal melanomas grow?

Choroidal melanomas tend to be very slow-growing, but because they often do not cause symptoms or visual changes when they are small, many are not recognized until they grow to larger sizes.

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Can a choroidal melanoma be benign?

They are benign, usually do not change with time, and require no treatment. The resultant serous retinal detachment and retinal elevation secondary to exudative age-related macular degeneration (AMD) poses another differential for choroidal melanoma.

Is choroidal melanoma primary or secondary?

Choroidal melanoma is the most common primary malignant intraocular tumor and the second most common type of primary malignant melanoma in the body.

How do you know if melanoma has metastasized?


  • Hardened lumps under your skin.
  • Swollen or painful lymph nodes.
  • Trouble breathing, or a cough that doesn’t go away.
  • Swelling of your liver (under your lower right ribs) or loss of appetite.
  • Bone pain or, less often, broken bones.
  • Headaches, seizures, or weakness or numbness in your arms or legs.
  • Weight loss.
  • Fatigue.

How aggressive is ocular melanoma?

This is an aggressive type of cancer that can potentially spread to other areas of the body, most often to the liver. Immediate treatment is often necessary. The approach depends on the size and placement of the tumor, and the stage at which it is found. The two most common treatments are radiation therapy and surgery.

How often does choroidal melanoma metastasize?

The median interval of time from diagnosis of choroidal melanoma to the diagnosis of metastasis was 44.8 months (3.7 years). At 5 years, 10 patients were diagnosed with metastasis (8.3% of irradiation group, 76.9% of patients with metastasis).