Classification Of Tumor Flashcards
capacity for spread to other sites
Metastasis
composed of transformed or neoplastic cells
The parenchyma
supporting non-neoplastic connective tissue, blood vessels, and host-derived inflammatory cells
The stroma
All tumors have two basic components
The parenchyma and the stroma
Malignant neoplasms of epithelial cell called?
Carcinoma
malignant neoplasms arising in mesenchymal tissues called ?
Sarcoma
Benign epithelial neoplasms producing microscopically visible finger-like or warty
projections
Papillomas
neoplasm—benign or malignant— produces a macroscopically visible projection above a mucosal surface
Polyp
tumor-like malformation composed of mature normal cells in the usual location but as a disorganized mass
Hamartoma
tumor-like mass consisting of normal cells in an abnormal location
Choriostoma
single neoplastic cell can differentiate into different types of cells. example: pleomorphic adenoma
Mixed tumor
Tumors contain mature or immature cells or tissues belonging to more than one germ cell layer (endoderm, mesoderm, and ectoderm)
Teratoma
originates from totipotential germ cells that are normally present in the ovary and testis and sometimes midline embryonic rests
Teratoma
development of secondary implants discontinuous with the primary tumor, in other tissues. It is the hallmark of malignancy.
Metastasis
spread through the blood and it is favored by sarcomas The liver and lungs are the most frequently involved secondary sites in hematogenous dissemination
Hematogenous spread