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Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
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Related Experiment Video

Updated: Mar 2, 2026

Implantation and Evaluation of Melanoma in the Murine Choroid via Optical Coherence Tomography
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[Is iris melanoma really a nevus?].

I Kremer, E Svetliza

    Harefuah
    |March 1, 1989
    PubMed
    Summary
    This summary is machine-generated.

    Melanoma of the iris can exhibit malignant behavior despite a benign microscopic appearance, leading to complications like glaucoma. Prognosis is linked to tumor cell type, not clinical or angiographic features.

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    Area of Science:

    • Ophthalmology
    • Oncology
    • Pathology

    Background:

    • The prognosis of iris melanoma is often linked to tumor cell type.
    • Existing research indicates no correlation between clinical presentation, microscopic findings, or angiography and iris melanoma outcomes.
    • Overall mortality for iris melanoma ranges from 3.0-3.6%.

    Observation:

    • Histologically benign iris tumors can display malignant behavior, invading ocular structures.
    • Two cases of iris melanoma with malignant behavior are presented in women aged 20 and 59.
    • One patient had a histologically benign tumor that penetrated the anterior chamber angle, causing secondary glaucoma.

    Findings:

    • Iris melanoma's clinical behavior can be malignant, irrespective of microscopic benignity.
    • Tumor invasion into the ciliary body and sclera, and recurrence post-excision, can occur.
    • Malignant behavior in iris melanoma is not reliably predicted by standard clinical or pathological assessments.

    Implications:

    • Histological benignity does not exclude malignant potential in iris melanoma.
    • Ophthalmologists must consider aggressive management even for tumors with benign microscopic features.
    • Further research is needed to identify reliable markers for iris melanoma prognosis and behavior.