Definitions Flashcards Preview

Special Clientele 2nd Term > Definitions > Flashcards

Flashcards in Definitions Deck (20):
1

Neoplasm:

Growth that proliferates with varying degrees of independence from normal cellular control mechanisms, presumed to arise by mutation or altered genetic control, behaves as if they were an independent parasitic organism.

2

Hyperplasia:

Exaggerated response to stimulus or presumed stimulus resulting in increased cell numbers ( not size: hypertorphy) which often recede when stimulus is removed

3

Tumor:

Originally a swelling or mass, has come to be used as synonym for neoplasm

4

Benign neoplasm:

Encapsulated, single masses of cells that remain localized at their site of origin and limited in their growth (though some can become very large and or multiply and cause serious disease)

5

Malignant neoplasm:

A tumor that tends to grow, invade and metastasize, usually has an irregular shape and is composed of poorly differentiated cells (ability to specialize)

6

Cancer:

any of a large group of malignant neoplastic diseases characterized by the presence of malignant cells

7

Oma:

Suffix added after the name of the tissue in which a neoplasm exists, usually benign (fibroma, lipoma, hematoma) exceptions
-carcinoma
-sarcoma
-Adenoma
-lymphoma
-Melanoma
-Glioma
-Myeloma

8

Carcinoma:

Malignant neoplasm of epithelium

9

Sarcoma:

Malignant neoplasm of non-epithelial tissue

10

Adenoma:

Malignant neoplasm of epithelial and glandular tissue

11

Lymphoma:

malignant neoplasm of lymph node cells (lymphatic tissues)-no benign counterpart

12

Melanoma:

Malignant neoplasm of melanocytes ( Nevus-birthmark/beauty mark- is the benign counterpart)

13

Glioma:

Neoplasms of supporting cells (glial cells) of brain (benign in that they don't spread, malignant in that they usually kill the pt

14

Myeloma:

Neoplasma of plasma cells

15

Neoplasms that dont form tumors

-Leukemia: neoplasms of lymphocytes
-Erythroleukemia: neoplasms of RBC's

16

Invasion:

Direct extension of neoplastic cells into surrounding tissue without regard to tissue boundaries

17

Metastasis:

Transportation of cells to a new site(through vascular or lymphatic channels, accidental surgical transplantation or by local extension.

18

Seeding:

INvasion of natural body cavity

19

Primary site:

original location of neoplasm

20

Secondary site:

Tumor growth not connected with original neoplasm (metastasized)