HLTH 335 Lecture Notes - Lecture 8: Metastasis, Neoplasm, Melanoma
2 Oct 2018
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Neoplasm : a mass of cells that grow more rapidly than normal cells. Malignant = consists of rapidly dividing cells that accumulate uncontrollably and invade normal tissue and have the ability to metastasize (generate independent tumors at distant sites) There are over 100 types and subtypes of malignancies aka cancers. Remain localized ; do not metastasize or recur following surgery. Well-differentiated cells that resemble the tissue from which it grew. May push on other tissues, but does not invade. Human diseases - hlth 335 - exam 1 review. Metastasize by bloodstream or lymphatic channels, leading to establishment of secondary sites of tumor growth. By type of cell it originates in: Mixed cancer = epithelial and connective tissue. There are various exceptions e. g. adenosarcoma originates in. Cancer is the leading cause of death worldwide and afflicts two of every three families. Deaths from cancer in the world are projected to continue to rise; according to nci:
