Neoplasia Flashcards
benign tumor arising in fibrous tissue
Fibroma
benign tumor arising from the cartilage
Chondroma
benign epithelial neoplasm derived from glands
Adenoma
benign epithelial neoplasm that produces microscopic or macroscopic visible finger-like or warty projections from the epithelial surface
Papillomas
Malignant tumors arising in ___ ___ are usually called sarcoma
mesenchymal tissue
Malignant neoplasms of epithelial cell origin, derived from any of the three germ layers
Carcinomas
Increase number of normal cells
Hyperplasia
Pathological event: Replacement of one differentiated (normal) cell with another differentiated (normal) cell
Metaplasia
Abnormal cells becoming disorganized (often pre-malignant)
Dysplasia
Characteristics of dysplasia (4)
- considerable pleomorphisms (different cell shapes, sizes)
- hyperchromatic (dark staining) nuclei
- high nuclear:cytoplasmic ration
- disorderly architecture
___ dysplasia involves entire thickness of the epithelium
severe
mild dysplasia does not involve the entire thickness of the epithelium and can be ___
reversible
__ __ dysplasia is synonymous with carcinoma in situ.
It is also known as “__ __ dysplasia”
high grade;
full thickness
define anaplasia
lack of differentiation
___ is considered to be a hallmark of malignancy
anaplasia