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An eye neoplasm is a tumor of the eye. [1] A rare type of tumor, [2] eye neoplasms can affect all parts of the eye, and can either be benign or malignant , in which case it is known as eye cancer. [3] Eye cancers can be primary (starts within the eye) or metastatic cancer (spread to the eye from another organ
All squamous cell carcinoma lesions are thought to begin via the repeated, uncontrolled division of cancer stem cells of epithelial lineage or characteristics. Accumulation of these cancer cells causes a microscopic focus of abnormal cells that are, at least initially, locally confined within the specific tissue in which the progenitor cell resided.
Optic nerve sheath meningiomas (ONSM) are rare benign tumors of the optic nerve. 60–70% of cases occur in middle age females, and is more common in older adults (mean age 44.7 years). It is also seen in children, but this is rare. The tumors grow from cells that surround the optic nerve, and as the tumor grows, it compresses the optic nerve.
The tumor's slow and self-limiting growth indicates that it is not immediately problematic in most benign cases, with long-term studies showing that people with optic glioma may still have stable functional vision without intervention. [4] [6] [7] As a result, the first and preferred course of action is usually observation of optic glioma over ...
Ocular melanosis (OM) is a blue-gray and/or brown lesion of the conjunctiva that can be separated into benign conjunctival epithelial melanosis (BCEM) and primary acquired melanosis (PAM), of which the latter is considered a risk factor for uveal melanoma. [1]
An optic nerve melanocytoma is a tumor made up of melanocytes and melanin. Melanocytomas are typically a benign meaning they can grow, but rarely transform into a malignancy. Even so, local growth can affect adjacent tissues. Most optic nerve melanocytomas are small, black, and do not grow.
Choroidal nevus (plural: nevi) is a type of eye neoplasm that is classified under choroidal tumors as a type of benign (non-cancerous) melanocytic tumor. [1] A choroidal nevus can be described as an unambiguous pigmented blue or green-gray choroidal lesion, found at the front of the eye, around the iris, [2] or the rear end of the eye.
A skin tag, or acrochordon (pl.: acrochorda), is a small benign tumor that forms primarily in areas where the skin forms creases (or rubs together), such as the neck, armpit and groin. They may also occur on the face, usually on the eyelids. Though tags up to 13 mm (1 ⁄ 2 inch) long have been seen, [2] they are typically the size of a grain ...