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22 Cards in this Set
- Front
- Back
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apoptosis
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programmed cell death of individual cells
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benign
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an innocent type of neoplasm; non-agressive and non-spready but CAN be space-occupying
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cancer
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malignant tumour of epithelial origin
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carcinogen
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chemical or other agent capable of causing cancer
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carcinoma
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malignant tumour of epithelial cells
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contact inhibition
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restriction on cell growth which occurs when the cells come into contact with other cells
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differentiation
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dvp of a specialised state, with expression of appropriate markers
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dysplasia
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abnormality of dvp or formation
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hamartoma
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focus of exaggerated normal or hyperplastic tissue components stimulating a tumour mass
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leukaemia
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malignant neoplasm of circulating WBC; includes bone marrow as well as circulating WBCs
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lymphosarcoma
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malignant neoplasia of the lymphocytes in the organised lymphoid tissues (ex. ln, spleen); can affect bone marrow less commonly
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malignant
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an aggressive, uncontrollable, infiltrating neoplasia, often spreading to other organs
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metastasis
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phenomenon of spread of tumour cells from a primary site to one or more (usually multiple) distant sites (usually other parenchymatous organs)
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neoplasia
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any disorder of cell proliferation resulting in uncontrolled cell growth
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neoplasm
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the group of cells resulting from neoplasia - usually but not always a tumour
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oncogene
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gene which is capable of causing xformation of cells in which it is aberrantly expressed
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oncology
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study of tumours or neoplasms
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senescence
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decline in cell viability and cell death assd with old age or multiple cell cycles - immortalised cells do not senesce
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sarcoma
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a malignant tumour of CT cells
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xformation
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occurs when a cell loses contact inhibition and anchorage dependence. xformed cells are not necessarily immortalised or tumourogenic
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tumour
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a solid cell mass formed within tissues by neoplasia, and not affected by the regulatory processes which exist in wound healing
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tumourogenic
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cells which when injected into an animal or tissue are capable of forming a tumour; chemicals which will induce a tumour
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