cancers 0 Flashcards

1
Q

A malignancy that occurs in the parenchyma is usually ______, whereas a tumor that occurs in the stroma is usually ________

A

carcinoma

sarcoma

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2
Q

What cells do undergo metaplasia and metastasize?

What cells do not?

A

Do: precursor stem cells

Do not: mature differentiated cells, heart cells and nerve cells

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3
Q

What is a benign epithelial neoplasm that arises in glands or forms glandular like patterns

A

What is a benign epithelial neoplasm that has visible finer-like warty projections

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4
Q

What is a benign epithelial neoplasm that arises in glands or forms glandular like patterns and FORMS LARGE CYTSTIC MASSES

A

Cystadenomas

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5
Q

What is tumor that produces papillary patterns and protrudes into cystic spaces?

A

Papillary cystenadenomas

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6
Q

What is a polyp?

A

a bengin OR malignant neoplasm that protrudes from mucosal surface => gastric or colonic lumen.

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7
Q

What is are 5 exceptions to the rule that benign tumors end in oma?

A

Following are malignant:

1. melanoma: 
2, lymphomas 
3, mesothelioma 
4. Seninoma
5. gliomas
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8
Q

a mesenchymal MALIGNANT tumor that is from blood forming cellls (neutrophils, basophils and eosinophils) or hematopoeitc cells (primary lymphocytes of myeloid cells)

A

leukemias

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9
Q

a mesenchymal MALIGNANT tumor that is from lymphocytes (B and T cells )

A

Lymphoma

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10
Q

Carcinomas are derived from where

A

3 germ cell layers: mainly endoderm and ectoderm

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11
Q

______ are a malignant tumor that is derived from mesenchyme

A

sarcomas

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12
Q

What is the most common cancer in kids?

A

acute lymphocyte leukemia

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13
Q

Most carcinomas affect what?

A

epithelium

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14
Q

Cancer where tumor cells look like stratified squamous epithelium

A

squamous cell carcinoma

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15
Q

What malignant tumors INVADE early, but rarely metastasize?

A
  1. Gliomas

2. Basal cell carcinoma of the skin

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16
Q

Adenocarcinomas are most common in what organs?

A
  1. Lung adenocarcinoma
  2. Prostate adenocarcinoma
  3. Pancreatic adenocarcinoma
  4. Esophogeal adenocarcinoma
  5. Colorectal adenocarcinoma
  6. Gastric adenocarcarcinomas
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17
Q

Most cervical cancers are what?

A

squamous cell cancers

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18
Q

Most breast cancers are what?

A

invasive ductal carcinoma (adenocarcinoma)

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19
Q

If a patient presents with thrombocytopenia (decrease in BCs), what cancer should we suspect?

A

Acute lymphocyte leukemia

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20
Q

most common lung cancers

A

adenocarcinoma > squamous cell carcinoma >small cell carcinoma > large

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21
Q

where do teratomas most often occur

A

ovary and testes

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22
Q

What is a type of teratoma

What lines does it differentiate from?

A

Ovarian cystic teratoma (dermoid cyst)

ectodermal

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23
Q

What benign tumors do NOT have a capsule around them. which prevents invasion

A

hemangiomas

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24
Q

What cancers are more likely to invade via carcinoma in situ

A

skin
breast
cervix

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25
What cancers usually metasttsize via direct seeding?
1. Ovarian carcinomas | 2. Mucus secreting appendecial carcinomas (pseudomyxomas peritonei)
26
What is the most common pathway for the initial dissemination (metastasis) of carcinomas?
lymphatic spread
27
What cancers typically metasize via blood?
Sarcomas but some carcinomas 1. renal cell (kidney carcinoma = venously 2. hepatocellular (liver) carcinoma = venously 3. thyroid and prostate
28
Does anatomic location often explain how cancer spreads? Breast cancer: Bronchiogenic cancers: Neuroblastoma
breast cancers => bone bronchiogenic cancers => brain and adrenal glands Neuroblastomas => bone and liver
29
DEVELOPED NATIONS (2014) What are the most common tumors in Men? Woman?
Men: prostate, lung and colon/rectum Women: breast, lung and colon/rectum
30
DEVELOPING NATIONS (2014) What are the most common tumors in Men? Woman?
M: Lung, stomach and liver F: Breast, cervix and lung
31
What is responsible for a large majority of cervical carcinoma increasing fraction of head and neck cancers?
HPV
32
what infectious agents are associated with LUNG CARCINOMA (only)?
1. Berrylium (missle fules and space vehicles) 2. Chromium (metal alloys) 3. Radon and its decay
33
What cancer is associated with cadmium (i.e., yellow pigments and phosphors; used in batteries, etc.)?
Prostate carcinoma
34
What cancer is associated with vinyl chloride (i.e., refrigerant, vinyl polymers, plastic adhesives, etc.)?
hepatic angiosarcomas
35
Nickel?
lung carcinoma | oropharyngeal carcinoma
36
arsenic
lung and skin carcinoma
37
Most CARCINOMAS occur when
after 55
38
Tumors d/t chronic inflammation are usually what type?
CARCINOMAS, but can be [mesotheliomas] and lymphomas
39
what BENIGN neoplasm is at risk to become malignant?
chronic villous adenoma
40
Patiens who are immunodefieient are more at risk for what kinds of cancers?
Viral cancers
41
Mutation in P450 loci => increase risk for what cancer?
lung cancer in smokers thus, sporadic cancers show tha tthey involve a inherited mutation
42
How does one mainly acquire lung cancer?
ENVIRONMENTAL 85% of ppl with lung cancer smoked
43
microcytic hypochromic anemia: most common site is where
large bowel
44
usually kids do NOT do well with sarcomas; but they do do well with what?
fibrosarcomas
45
PDGFB
astrocytoma and glioblastoma
46
ERBB1
lund adenocarcinoma
47
ERBB2
HER2 Breast adenocarcinoma
48
most common benign tumor in breast
fibroadenoma
49
Where are leiomyomas most common
uterus
50
describe a melanoma
malignant darkly pigmented
51
"large, irregular and ulcerative" thik what?
cancer
52
blah blah blah "lyphmphatic spread" , think what?
carcinomas
53
What is a intraductal carcinoma
a cancer that has NOT invaded
54
Infiltrating carcinoma
cancer that HAS invaded
55
leukoplakia
thickening of squamous in oral cavity, penis and vulva
56
cervix
squamous cell carcinoma d/t HPV
57
oral cavity
suqamout cell carcinoma d/t HPV
58
head and neck
squamous cell carcinom d/t HPV
59
vagina
squamous cell carcinoma
60
penis
squamou cell carcinoma
61
squamous cell cancer most common in
``` vagina penis oral cavity head and neck cervix ```
62
aflalatoxin
hepatocellular carcinoma
63
testes
seninomas (germ cell cancer)
64
Stomach + Hypylor can cause
lymphoma
65
desmoplasia is common in what cancer
breast
66
If you see small dark cells in the dermis of the biopsy, what are they d.t
CD8+
67
What is the MAJOR responder to malignant cells?
CD8+
68
does CIS have capacity for malignancy? what do we call it
no it is pre-neoplastic
69
borderline means what?
uncertain malignant potential
70
in a question, if you see the word "MASS", what is that telling us?
SOLID TUMOR do not pick leukemia or lymphoma
71
In a question, if you see the word "keratinocytes" , what is it telling us?
SQUAMOUS CELL
72
breast
invasive ductal carcinoma, a type of adenocarcinoma
73
where do adenocarcinomas NOT occur?
testes; seninoma (germ cell)
74
high WBC count, normal platelet count with some dysmorphic form what do we think?
leukemia platelets are normal bc they are derived from MEGAkaryocytes
75
BM/LN
leukemias and lymphomas
76
how can we differentiate from leukemia and bacterial infection in a question?
Leukemia: high WBC, normal platelet infection: high WBC and high platelet (d/t L shift)
77
EBV often invades what cells to cause what?
B cells also has tropism for squamous cells hoghkines lymphoma
78
in follicular lyphoma WBC: Predominant population of:
high lymphocytes and platelets
79
if we see expanded BM/lymphoid organs/ this means?
B cell typr of cancer
80
What malignancy is assx with salient LOF protein and high VHL levels
renal cell carcinoma (medulla
81
pelvic of the kidney
transitional cell carcinom
82
medulla and cortex of kidney
renal cell carcinoma (adenocarcinoma)