Cancer nomenclature terms Flashcards
(44 cards)
-genesis
creation or origin
-genic
creating or giving rise to
-plasia
growth or development
-trophy
growth response
a-
without
meta-
other
hyper-
increased
hypo-
decreased
ana-
against or contrary to
neo-
new
eu-
good or normal; ordered
dys-
abnormal or bad; disordered
-megaly
megalo-
very big; enlarged
Agenesis
absence of organ due to non-appearance of its primordial in embryo as consequence of imperfect development
Aplasia
lack of development; usually implies precursor was present in embryo
Atresia
congenital absence or closure of normal body opening or tumbler structure or physiological degenerative change
atrophy
decrease in size or amount after normal size has been achieved; can be bc lack of nutrition, poor blood supply, denervation, disuse, pressure, lack hormonal stimulation or presence of hormonal suppression
hypoplasia
incomplete or subnormal growth; implies that normal size has not been achieved
hypertorphy
increase in size
microscopically: increase in cell size (cells lost potential to divide bc damage or terminal differentiation but can enlarge bc increased synthesis of internal organelles or accumulation of secretory products)
Grossly- increase in size of structure; can be bc increased cell number and/ or size (often used for increased size of organ composed of terminally differentiated cells like the heart)
Hyperplasia
increased growth bc cell division
Microscopically- increase in cell numbers or number of structures
Grossly- increase in size of organ made up of cells capable of division
Dysplasia
abnormal growth; usually disorder in pattern of growth or abnormal appearance of individual cells; often used to describe developmental malformations or failure in progression of normal postnatal growth; can be used to describe disorderly growth patterns of cells in mature tissues
- may be precancerous but doesn’t have to be
Metaplasia
“other growth” change of one mature cell type to another that is abnormal for that tissue but yet is fully differentiated and normal tissue (not dysplastic)
Neoplasia
“New growth”; growth of cells that is progressive and autonomous and not responsive to normal regulators of growth
Neoplasm
Abnormal mass or tissue the growth of which exceeds and is uncoordinated with that of normal tissues and which persists in same excessive manner after cessation of the stimuli which evoked the change