Malignancy Flashcards

1
Q

what tissue type do carcinomas come from

A

epithelial tissue

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2
Q

are carcinomas easily distinguished

A

no, crab like and infiltrates the tissue

not in a pouch

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3
Q

do carcinomas do angiogenesis

A

no, they dont tend to use excessive blood vessel formtion

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4
Q

how do carcinomas metastasise

A

via blood and lymphatics

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5
Q

are carcinomas radiosensitive

A

yes

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6
Q

treatment options for carcinoms?

A

RT
surgery
hormone
chemo

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7
Q

organ sites of carcinomas

A
head and neck
lung
breast 
prostate
colon and rectum
pancreas
ovaries
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8
Q

different types of carcinomas

A
Squamous cell carcinoma
Adenocarcinoma
Adenosquamous carcinoma
Anaplastic/undifferentiated
Large cell 
small cell
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9
Q

SCC

A

observable features

characteristics indictive of differentiation

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10
Q

Adenocarcinoma

A

glandular-related tissue

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11
Q

Adenosquamous carcinoma

A

mixed tumour containing adeno and SC carcinomas

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12
Q

Anaplastic Carcinoma

A

high grade carcinomas, lacks evidence of any of the more specific cancers

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13
Q

Large Cell Carcinoma

A

Large, monotonous rounded or overtly polygonal-shaped cells with abundant cytoplasm

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14
Q

Small Cell Carcinoma

A

cells usually rounded and less than 3times the diameter of a resting lymphocyte and little evident cytoplasm

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15
Q

Spindle cell carcinoma

A

Rare subtype with elongated cells and resembles connective tissue cancers

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16
Q

Giant cell carcinoma

A

rare, huge, bizarre, multinucleated cells

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17
Q

sarcomatoid carcinoma

A

rare, mixture of spindle and giant cell carcinoma

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18
Q

pleomorphic carcinoma

A

rare, contains spindle or giant cell, and 10% are more highly diffenitated (eg, adenocarcinoma and squamous cell)

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19
Q

Sarcomas are

A

in connective and soft tissue (bone,cartilage,fat,muscle)

malignant tumours

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20
Q

Sarcomas appear as

A

a bulky mass

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21
Q

how are sarcomas named

A

resembles tissue type

and can also have a carcinosarcoma ( individual components remsembling them both)

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22
Q

sarcoma chararistics

A

grows by expansions
faster than carcinoma
angiogenesis is common
radioresistant

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23
Q

treatment options for sarcoas

A

surgery and chemotherapy

RT sometimes used

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24
Q

Sarcoma grading

A

assigned a grade based on presence and frequency of certain cellular and subcellular characteristics associated with the malignant biological behavior

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25
Low grade sarcoma treatment
Usually surgically | sometimes rt and chemo
26
intermediate/high grade sarcoma treatment
frequently with combination surgery, chemo and rt | treated more aggressively as they will likely undergo metastasis
27
sarcomas common in adults
Leiomyosarcoma Chondrosarcoma Gastrointestinal Stromal tumour
28
common in children and young adults and is high grade
Ewing's Sarcoma | osteosarcoma
29
Leukaemias and Lymphomas
occur in bone marrow and lymph nodes mesoderm cells malignant
30
Leukaemias subdivisions
acute and chronic and then divided based on which blood cells are affected
31
treatment for lukemia
chemo, only rt if late stage disease or prophylactic treatment
32
acute leukaemia is
rapid increase of immature blood cells, immediate treatment is required as it accumulated and spills into the bloodstream and spread all over the body
33
acute leukaemia is most common in
children
34
Chronic leukaemia is
build up of relatively mature abnormal, white blood cells | slow progression months to years
35
chronic leukeamis most common in
older people
36
Blood cell subdivisions
Lymphocytic Lymphoblastic Myeloid Myelogenous
37
Lymphocytic | Lymphoblastic occurs because
cancer changes in the marrow that produces lymphocytes ( immune fighting cells )
38
Myeloid | Myelogenous
Cancer changes the marrow that forms normal red blood cells, some other types of white blood cells and platelets
39
what is a Lymphocytic acute leukaemia
Acute lymphoblastic leukaemia
40
what is a Lymphocytic chronic leukaemia
Chronic lymphocytic leukaemia
41
what is a myeloid acute leukaemia
Acute Myelogenour leukaemia
42
what is a myeloid chronic leukaemia
chronic myelogenous leukaemia
43
4 other types of leukaemias
hairy cell leukaemia T-cell prolymphoctyic leukaemia Large grandular ymphocytic leukaemia Adult t-cell leukaemia
44
Lymphoma is
a blood cancer where b or t lymphocytes divide faster than normal cells or live longer
45
where does lymphoma form
lymph nodes, spleen, bone marrow, blood or other organs, eventually forming a tumour
46
how does a lymphoma present
enlargment of a node
47
how is lymphoma treated
chemo | sometimes rt and bone marrow transplant
48
types of lymphomas
Hodking's disease | Non-hodgkins disease
49
Extra nodal lymphoma sites
``` tonsils skin brain bowel bone ```
50
signs and symptoms of lymphomas
swelling of lymph nodes b symptoms - fever, night sweats, weight loss other : loss of appeitite, fatigue, dyspnoea, itching
51
Gliomas tumour begin
starts in brain or spine arising from glial cells
52
gliomas appear
bulky on imaging
53
how do gliomas grow
expand and grow through local invasion
54
Astrocytomas
glioma astorcytes glioblastoma multiforme is malignant grade 4 most commom among adults
55
ependymomas
ependymal cells | glioma
56
oligodendrogliomas
glioma | oligodendrocytes
57
brainstem glioma
glioma | develops in brain stem
58
optic nerve glioma
glioma | develops in or around optic nerve
59
mixed gliomas
oligoastrocytomas glioma containc cells from different types of glia
60
low grade glioma
well differentiated better prognosis benign tendencies uniform rate of recurrence + increase grade over time
61
High grade glioma
undifferntiated | carry worse prognosis
62
headache symptoms of gliomas
headaches after waking up - CSF accumlates in head, increasing pressure on brain from CSF and tumour = headache
63
symptoms of brain gliomas
headahces vomiting seizures crainial nerve disorders
64
symptoms of optic nerve glioma
lose of vision
65
spinal cord glioma symptoms
pain, weakness, numbness, or numbness in extremities
66
gliomas spread
metastasis via CSF not through blood
67
Treatment of gliomas
vary depending on location and malignancy | often combined approach
68
spinal cord glioma treatment
surgery and radiation
69
Why is temozolomide an effective chemo drug for gliomas
only drug that can cross the blood-brain barrier effectively