elundi- või koemahu suurenemine, mis on tingitud kompensatoorsest rakuhulga suurenemisest rakkude jagunemise ja vohamise tagajärjel
looma v taime elundi haiguslik suurenemine rakkude suurenemise ja rohkenemise tõttu
rakuhulga suurenemisest tingitud elundi või koe tavalisest suuremad mõõtmed
the enlargement of an organ or tissue caused by an increase in the reproduction rate of its cells, often as an initial stage in the development of cancer
an increase in the number of essentially normal cells
abnormal increase in volume of a tissue or organ caused by the formation and growth of new normal cells
Abnormal cells—the kind that generally make up tumours—differ from normal cells in having undergone one or more of the following alterations: (1) hypertrophy, or an increase in the size of individual cells; this feature is occasionally encountered in tumours but occurs commonly in other conditions; (2) hyperplasia, or an increase in the number of cells within a given zone; in some instances it may constitute the only criterion of tumour formation; (3) anaplasia, or a regression of the physical characteristics of a cell toward a more primitive or undifferentiated type; this is an almost constant feature of malignant tumours, though it occurs in other instances both in health and in disease.
