Ch 7 Nomenclature Flashcards
Parenchyma component of tumor
epithelial component
classification of tumors and their biologic behavior based primarily on this
Stroma component of tumor
supportive cellular component
growth and spread of dependent on stromal
benign
gross and microscopic appearance are innocent, implies it will remain localized and will not spread to other sites, is amenable to local surgical removal
-oma
benign
mesenchymal cells follow this rule
epithelial tumors are classified base on their cells of origin
adenoma
benign epithelial neoplasms derived from glands, may or not form glandular structures
papillomas
microscopically or macroscopically visible fingerlike or warty projections from epithelial surfaces
cystadenomas (cystadenofibroma)
large cystic masses
polyp
produces a macroscopically visible projection above the mucosal surface
malignant
can invade and destroy adjacent structures and spread to distant sites (metastasis) to cause death
carcinomas
epithelial cell origin
derived from any 3 germ layers
mesoderm layer
carcinoma
sarcoma
hematolymphoid (leukemia)
squamous cell carcinoma
tumor cells resemble stratified squamous epithelium
adenocarcinoma
neoplastic epithelial cells grow in a glandular pattern
sarcomas
arising in solid mesenchymal tissue
lymphomas
myeloid blood forming cells
NEVER metastatic
mixed tumor
divergent differentiation of a single neoplastic clone
pleomorphic adenoma
arise from a single clone capable of producing both epithelial and myoepithelial cells
teratoma
contains recognizable mature or immature cells or tissues belonging to more than one germ cell
dermoid cyst
ovarian cystic teratoma
hamartoma
mass of disorganized tissue indigenous to particular site
choristoma
congenital abnormality consisting of heterotopic rest of cells
malignant tumors w/ benign names
mesothelioma - mesothelium
lymphomas - lymphoid tissue
seminoma - testicular
malignant melanoma - melanocytes
