Flashcards in GPHT LEC - Neoplasia Deck (107)
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1
Means the process of“new growth”
neoplasia
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new growth is called a __
neoplasm
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neoplasm common name
tumor
4
– the study of tumors or neoplasms
Oncology
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common term for all malignant tumor
cancer
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means crab in latin
cancer
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Abnormal mass of tissue
neoplasm
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Growth exceeds and uncoordinated with that of the normal tissues
neoplasm
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Persists in the same excessive manner after cessation of stimuli which evoked the change
neoplasm
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Results from heritable genetic alterations that are passed down to the progeny of the tumor cells
neoplasm
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Autonomous and progressive growth
neoplasm
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Entire population of cells within a tumor arises from a single cell that has incurred a genetic change (clonal)
neoplasm
13
2 basic components of tumors (benign or malignant)
parenchyma
stroma/non-neoplastic stroma
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basic components of tumors
made up of transformed or neoplastic cells
Parenchyma
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basic components of tumors:
determines the biologic behavior of the neoplasm
Parenchyma
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it is the component from which the tumor derives its name.
Parenchyma
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basic components of tumors:
made up of connective tissue and blood vessels
Stroma / Non-neoplastic stroma
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basic components of tumors:
carries the blood supply and provides support for the growth of parenchymal cells and is therefore crucial to the growth of the neoplasm.
Stroma / Non-neoplastic stroma
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benign hollow cystic masses; typically they are seen in the ovary.
Cystadenomas
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are benign epithelial neoplasms, growing on any surface, that produce microscopic or macroscopic finger-like fronds.
Papillomas
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mass that projects above a mucosal surface, as in the gut, to form a macroscopically visible structure.
Polyp
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Although polyps is commonly used for benign tumors, some malignant tumors may also appear as polyps. T OR F
TRUE
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– this term is applied to benign epithelial neoplasms producing gland patterns and to those derived from glands but not necessarily exhibiting gland patterns.
Adenoma
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A benign epithelial neoplasm arising from renal tubule cells and growing in glandlike patterns would be termed an , as would a mass of
adenoma
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benign epithelial cells that produces no glandular patterns but has its origin in the adrenal cortex would be termed as
adenoma
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– malignant neoplasms arising in mesenchymal tissue or its derivatives
Sarcomas
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malignant neoplasms of epithelial cell origin with the consideration that the epithelia of the body are derived from all three germ layers
Carcinomas
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all malignant neoplasm arising from the epithelia derived from all three germ layers are considered ---
carcinomas
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* The mesoderm may give rise to carcinomas (epithelial) only. TRUE OR FALSE
FALSE. May be both
The mesoderm may give rise to carcinomas (epithelial) and sarcomas (mesenchymal)
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