Neoplasia I Flashcards
Neoplasm
Mass of tissue that grows excessively and keeps growing even if you remove the stimulus that started it off
Autonomous growth
Tumor
Swelling
Commonly a neoplasm
Benign tumor
Nonleathal tumor (though it can depend on the location)
Malignant tumor
Leathal tumor which participates in metastasis
Cancer is a _____ tumor.
Malignant
What are the signs of a benign tumor?
Small Slow-growing Non-invasive Well-differentiated Stays localized
What are the signs of a malignant tumor?
Large Fast growing Invasive Poorly differentiated Metastasizes
Adenoma
Benign tumor arising from glandular cells may or may not be functional
Leiomyoma
Benign tumor arising from smooth muscle cells
Chondroma
Benign tumor arising from chondrocytes
Papilloma
Finger-like projections
Polyp
Project forward, forming a lump
Cystadenoma
Hollow spaces (cysts) inside
Carcinomas
Arise in epithelial tissue
Adenocarcinoma
Malignant tumor of glandular cells
Squamous cell carcinoma
Malignant tumor of squamous cells
Sarcomas
Arise in mesenchymal tissue
Chondrosarcoma
Malignant tumor of chondocytes
Angiosarcoma
Malignant tumor of blood vessels
Rhabdomyosarcoma
Malignant tumor of skeletal muscle cells
What do mixed tumors show?
Divergent differentiation which can be benign or malignant
Pleomorphic adenoma
Gland + fibromyxoid stroma
Fibroadenoma
Glands + fibrous tissue
Mesotheliomas
Epithelial/spindle cells, benign/malignant
Teratomas
Contain all 3 germ layers and usually benign
What malignant tumors sound benign?
Lymphoma
Mesothelioma
Seminoma
Melanoma
Which non-tumors sound like tumors?
Hamartoma (mass of disorganized indigenous tissue)
Choristoma (heterotopic rest of cells)
What names seem to come from nowhere?
Nevus
Leukemia
Hydatidiform mole
