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Principles of disease (Ross Lilley) > Tumour pathology 1 > Flashcards

Flashcards in Tumour pathology 1 Deck (26)
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1

tumour

abnormal growing mass of tissue.
growth uncoordinated with surrounding normal tissue.

2

will tumours continue to grow when their stimulus is removed

yes

3

cancer

a malignant tumour that is able to spread into adjacent tissues and metastasis and grow at other sites in the body.

4

metastasise

the spread of a malignant tumour (growth at a secondary sight).

5

classification of tumours

based on tissue of origin and whether it is benign or malignant.

6

nomenclature of epithelial tumours

based on type of epithelial tissue and whether the tumour is malignant or benign

7

adenoma

benign tumour of glandular tissue, eg. the mucosal of the small inestine, stomach or colon

8

adenocarcenoma

malignant tumour of glandular tissue

9

squamous papilloma

benign tumour in squamous epithelial tissue

10

squamous carcinoma

mailignant tumour of squamous epithelial tissue

11

osteoma

benign tumour of bone tissue

12

osteosarcoma

malignant tumour of bone tissue

13

lipoma

benign tumour of fat tissue

14

liposarcomma

malignant tumour of fat tissue

15

fibroma

benign tumour of fibrous connective tissue

16

firosarcomma

malignant tumour of fibrous connective tissue

17

leukaemia

malignant tumour of white blood cells

18

lymphoma

malignant tumour of lymphoid tissue

19

Naevus

benign tumour of melanocytes

20

melanoma

malignant tumour of melanocytes

21

astrocytoma

tumour of astrocytes in the CNS

22

schwannoma

tumour of the Schwann cells in the peripheral nervous system

23

teratomas

tumours of germ cells.

24

ovarian and testicular cancer malignancy comparison

ovarian teratomas are usually benign
testicular teratimas are usually malignant

25

Features of benign tumours

-non-invasive growth pattern
- usually encapsulated
-no evidence of invasion
-no metastases (secondary tumours)
-cells similar to normal so they are well differentiated
- have a function similar to normal tissue
rarely cause disease

26

features of malignant tumours

-invasive growth pattern
- no capsule of capsule breached
-cells abnormal so are poorly differentiated
-loss of normal function
-often evidence of spread of cancer
-frequently cause death