Ciliary body melanoma

Ciliary body melanoma

Ciliary Body Melanoma is a type of cancer arising from the coloured part (uvea) of the eye.

About 12% of uveal melanoma arise from the ciliary body.

Contents

Clinical features

It occurs most commonly in the sixth decade.

  • External signs include dilated episcleral blood vessels (sentinel vessels). Extraocular erosion may produce a dark mass beneath the conjunctiva.
  • Pressure on the lens by the enlarging tumor can cause astigmatism, sublaxtion of the lens and formation of a localised lens opacity.
  • The tumor can erode forward through the iris root and mimic an iris melanoma.
  • Retinal detachment can be rarely caused by posterior extension of the tumor.
  • Anterior uveitis is an uncommon presentation and occurs due to tumor necrosis.
  • Cirumferentially growing tumors carry a bad prognosis as they are diagnosed late.
  • At times the tumor is detected as an incidental finding during routine examination.

The tumour is usually diagnosed by clinical examination with a slit-lamp utilising a triple mirror contact lens. Ultrasonography and fine needle aspiration biopsy (FNAB) are also sometimes helpful in confirming the diagnosis.

Treatment

Enucleation (surgical removal of the eye) is the treatment of choice for large ciliary body melanomas. Small or medium sized tumors may be treated by an iridocyclectomy. Radiotherapy may be appropriate in selected cases.

See also

References

External links



Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • melanoma de cuerpo ciliar — Eng. Ciliary body melanoma Tumor melanocítico maligno de características parecidas a los coroideos, siendo a veces imposible saber si se trata de un tumor primitivo de cuerpo ciliar o de una extensión de un melanoma coroideo …   Diccionario de oftalmología

  • Uveal melanoma — Classification and external resources Iris melanoma ICD 10 C69 …   Wikipedia

  • ocular melanoma — ocular malignant melanoma malignant melanoma arising from the structures of the eye, usually the choroid, ciliary body, or iris, and occurring most often in the fifth and sixth decades of life. The most common site of metastasis is the liver; if… …   Medical dictionary

  • Eye neoplasm — Classification and external resources ICD 10 C69 ICD 9 190 …   Wikipedia

  • Ocular oncology — is the branch of medicine dealing with tumors relating to the eye and its adnexa. Eye cancer can affect all parts of the eye.Eye cancerOrigin and locationEye cancers can be primary (starts within the eye) and metastatic cancer (spread to the eye… …   Wikipedia

  • Diktyoma — Medulloepithelioma Classification and external resources Histopathology of medulloepithelioma showing characteristic neural tube like strands. ICD O: M …   Wikipedia

  • Medulloepithelioma — Classification and external resources Histopathology of medulloepithelioma showing characteristic neural tube like strands. ICD O: M …   Wikipedia

  • DecisionDx-UM — is a prognostic test that accurately determines the metastatic risk associated with ocular melanoma tumors of the eye. Ocular melanoma is a term commonly used to describe tumors of the uveal tract such as uveal melanoma, choroidal melanoma,… …   Wikipedia

  • Leukocoria — (also leukokoria [ [http://medical dictionary.thefreedictionary.com/leukokoria thefreedictionary.com] ] ) is an abnormal white reflection from the retina. Despite its color, the reflection is related to the familiar red eye effect, not to… …   Wikipedia

  • Optic nerve tumor — An optic nerve melanocytoma is a tumor made up of melanocytes and melanin. These tumors are typically a benign; they can grow, but rarely transform into a malignancy. Even so, local growth can affect adjacent tissues. Symptoms Optic nerve… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”