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A neoplasm (/ ˈ n iː oʊ p l æ z əm, ˈ n iː ə-/) [1] [2] is a type of abnormal and excessive growth of tissue. The process that occurs to form or produce a neoplasm is called neoplasia . The growth of a neoplasm is uncoordinated with that of the normal surrounding tissue, and persists in growing abnormally, even if the original trigger ...
The photo shows the characteristic dark color of an oncocytoma, a rare type of benign neoplasm, at the left side of the image (the normal lobulated salivary gland tissue is to the right). An salivary gland oncocytoma (also known as an oxyphilic adenoma ) is a well-circumscribed, benign neoplastic growth comprising about one percent of all ...
Malignancy, malignant neoplasm and malignant tumor are synonymous with cancer; Malignant ascites; Malignant transformation; Non-oncologic disorders referred to as "malignant" include: Malignant hypertension; Malignant hyperthermia; Malignant otitis externa; Malignant tertian malaria (malaria caused specifically by Plasmodium falciparum)
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).
Carcinoma in situ (CIS) is a group of abnormal cells. [1] [2] While they are a form of neoplasm, [3] there is disagreement over whether CIS should be classified as cancer.This controversy also depends on the exact CIS in question (e.g., cervical, skin, breast).
A neoplasm or tumor is a group of cells that have undergone unregulated growth and will often form a mass or lump, but may be distributed diffusely. [27] [28] All tumor cells show the six hallmarks of cancer. These characteristics are required to produce a malignant tumor. They include: [29] Cell growth and division absent the proper signals
Thyroid neoplasm is a neoplasm or tumor of the thyroid. It can be a benign tumor such as thyroid adenoma, [1] or it can be a malignant neoplasm (thyroid cancer), such as papillary, follicular, medullary or anaplastic thyroid cancer. [2] Most patients are 25 to 65 years of age when first diagnosed; women are more affected than men.
According to the World Health Organization (WHO), lymphoma classification should reflect in which lymphocyte population the neoplasm arises. [23] Thus, neoplasms that arise from precursor lymphoid cells are distinguished from those that arise from mature lymphoid cells. [23] Most mature lymphoid neoplasms comprise the non-Hodgkin lymphomas. [23]