Tumour pathology 1

Question 1

tumour

Answer 1

abnormal growing mass of tissue.

growth uncoordinated with surrounding normal tissue.

Question 2

will tumours continue to grow when their stimulus is removed

Answer 2

yes

Question 3

cancer

Answer 3

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

Question 4

metastasise

Answer 4

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

Question 5

classification of tumours

Answer 5

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

Question 6

nomenclature of epithelial tumours

Answer 6

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

Question 7

adenoma

Answer 7

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

Question 8

adenocarcenoma

Answer 8

malignant tumour of glandular tissue

Question 9

squamous papilloma

Answer 9

benign tumour in squamous epithelial tissue

Question 10

squamous carcinoma

Answer 10

mailignant tumour of squamous epithelial tissue

Question 11

osteoma

Answer 11

benign tumour of bone tissue

Question 12

osteosarcoma

Answer 12

malignant tumour of bone tissue

Question 13

lipoma

Answer 13

benign tumour of fat tissue

Question 14

liposarcomma

Answer 14

malignant tumour of fat tissue

Question 15

fibroma

Answer 15

benign tumour of fibrous connective tissue

Question 16

firosarcomma

Answer 16

malignant tumour of fibrous connective tissue

Question 17

leukaemia

Answer 17

malignant tumour of white blood cells

Question 18

lymphoma

Answer 18

malignant tumour of lymphoid tissue

Question 19

Naevus

Answer 19

benign tumour of melanocytes

Question 20

melanoma

Answer 20

malignant tumour of melanocytes

Question 21

astrocytoma

Answer 21

tumour of astrocytes in the CNS

Question 22

schwannoma

Answer 22

tumour of the Schwann cells in the peripheral nervous system

Question 23

teratomas

Answer 23

tumours of germ cells.

Question 24

ovarian and testicular cancer malignancy comparison

Answer 24

ovarian teratomas are usually benign

testicular teratimas are usually malignant

Question 25

Features of benign tumours

Answer 25

-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

Question 26

features of malignant tumours

Answer 26

• 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