Cancer Flashcards
term related to a deviation from the
normal functioning anatomy of the generalized cell.
Aberration
Group of disorders characterized by
abnormal - cell growth and the ability to metastasize with
potential in killing the host.
Cellular Aberrations
efers to the group of diseases in which cells
grow and spread unrestrained throughout the body.
CANCER/CA
Process of transformation from normal cell to a
neoplastic cell
CARCINOGENESIS
Occurs when cancer cells infiltrate adjacent tissues
surrounding the neoplasm.
INVASION
Occurs when malignant cells travel through the blood
or lymph and invade other tissues
METASTASIS
s develop specific
structures and function in order to specialize in certain
tasks.
DIFFERENTIATION
four epidemic non-communicable
diseases (NCDs) or lifestyle-related diseases (LRDs) which
include
-cardiovascular diseases,
- diabetes mellitus,
- chronic respiratory diseases.
Refers to a tumor arises from epithelial
tissue, the name of the cancer identifies the location.
CARCINOMA -
tumor arising from supportive
tissue; the name of the cancer identifies the specific tissue
SARCOMA -
malignant disorder of the blood-forming
tissues of the bone marrow, spleen, and lymph system
LEUKEMIA -
group of malignant neoplasm that affects
the lymphatic system resulting in the proliferation of
lymphocytes
LYMPHOMA
characterized by unregulated proliferation of WBCs and their
precursors.
LEUKEMIA
Cancer of the plasma cells
MYELOMA -
- Increase in size of normal cells
*HYPERTROPHY -
- Shrinkage of cell size
ATROPHY -
increase in number of normal cells
*HYPERPLASIA
Conversion from the normal pattern of
differentiation of one type of cells into another type of cell not
normal for that tissue
*METAPLASIA -
Alteration in the shape, size, appearance, and
distribution of cells
*DYSPLASIA -
Disorganized, irregular cells that have no
structure and have lots of differentiation; the result is almost
malignant.
*ANAPLASIA -
Stages of Tumor Progression
HAHMDA
Hypetrophy-Atrophy-Hyperplasia-Metaplasia-Dysplasia-Anaplasia
conceptualizes that normal cells may be transformed into
cancer cells due to exposure to some etiologic agents
Cellular Transformation and Derangement Theory
advocates that all individuals possess cancer cells. However,
the cancer cells are recognized by the immune response
system.
Failure of the Immune Response Theory
2 PATHOGENESIS OF CANCER
Cellular Transformation and Derangement Theory
Failure of the Immune Response Theory
development of a malignant tumor in
otherwise healthy tissue is the result of a complex
series of events beginning with a single cell that has
acquired malignant properties through cellular DNA
damage
CARCINOGENESIS
Steps: of Carcinogenesis
IPLPI
- Imitation
- Promotions
- Latency
- Progression
- Invasion to neighboring organs
Most common and useful staging system for most types of
cancer by
AJCC and UICC
y American Joint Committee on Cancer (AJCC) and
the Union for International Cancer Control (UICC)
TNM?
Tumor
Nodes
Metastasis
no available information on primary tumor
Tx
T0
No evidence of primary tumor
TIS
only carcinoma in situ
T1
<2cm
T2
2-4 cm
> 4 cm tumor
T3
T4
> 4cm, involved natrum, based of tongue
(regional Lymph Node)
N
Nx
- cannot be assessed clinically
● NO - no evidence of regular node met
NO
no evidence of regular node metastasis
N1
Single ipsilateral <3cm
Single ipsilateral 3-6 cm
N2A
Multiple ipsilateral <6cm
N2b
N3
Massive ipsilateral
N3a
Ipsilateral npdes more than 6cm
bilateral nodes
N3b
Contralateral node
N3c
Metastasis cannot be measured.
Mx
Cancer has not spread to other parts of the body.
Mo
M1
Cancer has spread to other parts of the body.
TYPES OF METASTASIS
- Lymphatic Spread
- Seeding of body cavities & surfaces
- Hematogenous spread
Stage 0
Benign
Stage 1
spread to nearby tissue
-2-5 cm sometimes involve lymph
Stage 2
more than 5 cm spread (advanced spread to
connective tissue)
Stage 3
Stage 4
Metastasis
ETIOLOGIC FACTORS (CARCINOGENS)
Viruses
2.Chemical carcinogens
3. Physical agents
4.Hormones
5. Genetics
the first discovered
retro-virus causing cancer
Rous sarcoma virus (RSV)
causally related with
hepato-cellular carcinoma.
Hepatitis B and C virus
associated with kaposi’s sarcoma.
Cytomegalovirus (CMV)
which causes stomach ulcers and
has been linked to gastric cancer
Helicobacter pylori -
toxic compounds that are naturally
produced by certain types of moulds (fungi
Mycotoxins
risk of colorectal cancer.
Processed meat r
aspartame does carry a risk for people with the rare
genetic disorder
phenylketonuria
estrogen as replacement therapy increases incidence
of
vaginal and cervical adenocarcinoma
WARNING SIGNAL OF CANCER
CAUTION
C- change in bladder and bowel habits
A- a sore that does not heal
U- unusual bleeding or discharges
T-thickening or lump in the breast
I - Indigestion and difficulty in swallowing
O - overt changes in wart or mole
N- nagging cough and hoarseness of voice
TISSUES SAMPLING
. Exfoliative cytology -
Biopsy s
used to study cells that the body has
shed during the normal sequence of body tissue growth and
development
Exfoliative cytology
surgical removal of a piece of tissue for microscopic
examination
Biopsy
cells are aspirated through placed in the
tissue
a.Needle biopsy
removing or taking a small sample out of
tissues
b.Incisional biopsy
involves removal all of the know tumor
C.Excisional biopsy - i
DIRECT VISUALIZATION for cacner
- Bronchoscopy/Esophagoscopy
- Gastroscopy
- Sigmoidoscopy
- Colonoscopy
INDIRECT VISUALIZATION includes radiological and imaging
test
Mammography
2. Barium enema
3. BSE
4. GI SERIES
5. Computed Tomography
TUMOR MARKERS
Oncofetal antigen
2. Hormones
3. Isoenzymes
4. Tissue
THREE SAFETY PRINCIPLES:
in radiation
TIme
Distance
Shield
Sources of radiation:
EXTERNAL (Teletherapy)
● INTERNAL (Brachytherapy – sealed)
SIDE EFFECTS OF RADIATION THERAPY
. SKIN REACTION
HEMORRHAGE
INFECTION
CHEMOTHERAPY
● OTHER TERM:
chemo, antineoplastic drugs, anticancer, cytotoxic
drugs
employed after the
primary tumor has been removed by some other
method.
Therapeutic strategies adjuvant
initial treatment for cancer,
especially to suppress secondary tumor formation.
Adjuvant-
Adjuvant therapy is often used
as follow-up treatment for
breast, colon and lung
cancers
ombining several different agents
simultaneously in order to enhance their
effectiveness.
Combination
use as the initial treatment with
advanced cancer that cannot be treated by other
means.
Induction
initially used in localized cancer in
order to decrease the tumor burden prior to treatment
by other modalities.
Neoadjuvant
CONTRAINDICATIONS OF CHEMOTHERAPY
MPAIRED RENAL AND HEPATIC FUNCTIONS.
Patient Education Review treatment goals Review
strategies to manage reactions
ADMINISTRATION OF IV CHEMO AGENTS
A. PREPARATORY PHASE
ADMINISTRATION OF IV CHEMO AGENTS
B. PERFORMANCE PHASE
A. Insertion of IV access
B. Administration Phase
Monitor pain and erythema, induration or necrosis
● Monitor for other adverse effects of the drug
ADMINISTRATION OF IV CHEMO AGENTS
B. FOLLOW UP PHASE
happens when a vesican
Extravasation
May result in damage to tendons and nerves
FOR SEVERE EXTRAVASATIONS
- May result in damage to tend
END RESULT of extravasations
AMPUTATION
Cyclophosphamide
Antidote
Mesna
Fluorouracil antidote?
Leucovorin Calcium
SIDE EFFECTS OF CHEMO AGENTS AND THEIR NURSING
INTERVENTIONS: GI
N/V, diarrhea, constipation
SIDE EFFECTS OF CHEMO AGENTS AND THEIR NURSING
INTERVENTIONS: Integ
Pruritus, urticaria Provide good skin care Observe for
anaphylactic reactions
protect from infection, avoid people with
infection
Neutropenia
It interferes with DNA and RNA growth
ALKYLATING AGENT
: Attack cells at very specific phase of the S
Phase Inhibit cell reproduction by interfering with the
manufacture of protein
ANTIMETABOLITES
Interfere with DNA by stopping enzymes
and mitosis or altering
ANTINEOPLASTIC ANTIBIOTICS
Attack the cell during various phases of
cell division especially the M Phase Known as Mitotic
inhibitors
PLANT ALKALOIDS
are drugs that produce analgesia by binding to CNS
opiate receptors. These are the drug of choice for
severe chronic pain
TYPES (AGONIST)
also produce analgesia by binding to CNS receptors.
TYPES (AGONIST-ANTAGONISTS
Prescribed to manage mild to moderate pain
● EX: NSAIDs- aspirin, ibuprofen, indomethacin,
naproxen, acetaminophen
PAIN MANAGEMENT (NON-OPIOID ANALGESICS)