Tumour classification Flashcards

1
Q

Neoplasm vs tumour

A

Tumour is any abnormal swelling (due to neoplasm, inflammation, hypertrophy, hyperplasia.) Often used interchangeably

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2
Q

Lesion

A

Localised abnormality

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3
Q

Viscous

A

An organ

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4
Q

Definition of neoplasm

A

A lesion resulting from the autonomous or relatively autonomous abnormal growth of cells which persists after the initiating stimulus has been removed. A new growth.

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5
Q

Neoplasms consist of neoplastic cells and s___

A

stroma

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6
Q

Neoplastic cells derive from n_____ cells, are usually m_______, and their growth pattern and synthetic activity related to parent cell

A

nucleated, monoclonal (are cells same - true at start but could continue to acquire genetic mutations)

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7
Q

Stroma is the c_____ t____ framework providing mechanical support and nutrition

A

connective tissue

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8
Q

What is the process of a neoplasms getting its own blood supply?

A

Tumour angiogenesis

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9
Q

Central necrosis shows that…

A

The tumour is growing quickly, faster than it can grow its own blood supply

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10
Q

What are the 2 ways to classify neoplasms?

A

Behavioural (benign/malignant/borderline) and Histogenetic (cell of origin)

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11
Q

Characteristics of benign neoplasms

A

Localised, non-invasive, slow growing, low mitotic activity, close resemblance to normal tissue, circumscribed or encapsulated

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12
Q

True or false: nuclear morphometry is not normal in benign neoplasms?

A

False

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13
Q

Is necrosis rare in benign neoplasms?

A

Yes

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14
Q

Is ulceration rare in benign neoplasms?

A

Yes

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15
Q

For benign neoplasms, growth on mucosal surfaces usually e________ (grow outward beyond the surface epithelium)

A

exophytic

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16
Q

How can benign neoplasms cause death?

A

Pressure on surrounding structures, obstruct flow, produce hormones, transform to malignant neoplasm, also can cause anxiety

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17
Q

Characteristics of malignant neoplasms

A

Invasive, metastases, rapid growth rate, variable resemblance to normal tissue, poorly defined or irregular border

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18
Q

Ture or false: malignant neoplasms have hyperchromatic nuclei and pleomorphic nuclei (variability in shape, size, staining)

A

True

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19
Q

Malignant neoplasms have increased m____ activity

A

mitotic

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20
Q

True or false: necrosis and ulceration is common in malignant neoplasms

21
Q

In malignant neoplasm, growth on mucosal surface and skin is often e_____

A

endophytic

22
Q

Malignant neoplasms destroy adjacent tissue, cause blood loss from u____, can obstruct flow, produce hormones

23
Q

Malignant neoplasms can give paraneoplastic effects and cause anxiety and p___

24
Q

Histogenesis

A

The specific cell of origin of a neoplasm

25
What 3 things may neoplasms may arise from?
Epithelial cells, connective tissues, lymphoid/haematopoietic organs
26
Non-glandular and non-secretion neoplasms are c____.
common
27
Benign epithelial neoplasms (non-secretory) are called
Papilloma
28
Benign epithelial neoplasms (secretory) neoplasms are called
Adenoma
29
Carcinoma
Malignant epithelial neoplasm
30
Malignant epithelial neoplasms of glandular epithelium are called...
adenocarcinomas
31
Benign connective tissue neoplasms that look like adipocytes are called
lipoma
32
Benign connective tissue neoplasms that look like cartilage are called
chondroma
33
Benign connective tissue neoplasms that look like bone are called
osteoma
34
Benign connective tissue neoplasms that look like angioma are called
vascular
35
Benign connective tissue neoplasms that look like striated muscle are called
rhabdomyoma
36
Benign connective tissue neoplasms that look like smooth muscle are called
leiomyoma
37
Benign connective tissue neoplasms that look like nerves are called
neuroma
38
Malignant connective tissue neoplasms that resemble adipose tissue are called
liposarcoma
39
Malignant connective tissue neoplasms that resemble striated muscle are called
rhabdomyosarcoma
40
Malignant connective tissue neoplasms that resemble smooth muscle are called
leiomyosarcoma
41
Malignant connective tissue neoplasms that resemble cartilage are called
chondrosarcoma
42
Malignant connective tissue neoplasms that resemble bone are called
osteosarcoma
43
Malignant connective tissue neoplasms that resemble blood vessels are called
angiosarcoma
44
Where cell type of origin cannot be determined, the neoplasm is said to be a______
anaplastic
45
Name some '-omas' that aren't neoplasms
Granuloma, mycetoma, tuberculoma
46
Melanoma
malignant neoplasm of melanocytes
47
What is malignant neoplasms of mesothelial cells called?
mesothelioma
48
What is a lymphoma?
Malignant neoplasms of lymphoid cells
49