Oncology Flashcards
type of blood cancers
- leukemias
- lymphomas
- plasma cell disorder
solid tumor types
- diff. by type (breast, prostate, colon, lung-most common)
types of cancer treatments
- chemo
- immunotherapy
- radiation
- surgery (solid only)
- stem cell transplant
- CAR-T therapy
what are blood cancers
- malignancy originating from hematopoietic (blood producing) cells in the bone marrow
types of myeloid blood cancer
-MDS, AA, AML, CML
Types of lymphoid blood cancer
-acute lymphocytic leukemia, MM, lymphomas
acute leukemia
abnormal blood cells are immature blood cells (blasts) that cant carry out their normal function and they multiply rapidly which means it can worsen quicker
DX of acute leukemia
- peripheral blood tests (blasts)
- bone marrow biopsy
- lumbar puncture
- imaging
systemic symptoms of acute leukemia
- weight loss
- fever
- lots of infections
lung symptoms of acute leukemia
-sob
Muscular symptoms of acute leukemia
-WEAKNESS
bone and joint symptoms of acute leukemia
-pain and tenderness
psychological symptoms of acute leukemia
- fatigue
- loss of appetite
lymph node symptoms of acute leukemia
-swelling
spleen and liver symptoms of acute leukemia
-enlargement
skin symptoms of acute leukemia
- night sweats
- easy bleeding and bruising
- purplish patches or spots
difference between AML and ALL
- AML: fatigue, DIC, Bleeding (sicker on presentation)
- ALL: hepatosplenomegaly
B-symptoms
- will be seen with lymphoid lineage cancers (ALL, lymphomas, CLL)
- unintentional weight loss
- drenching night sweats
- fever (unknown why)
- painless lymphadenopathy
chemo induction phase
- initial chemo treatment
- meant to induce remission
- response to induction can predict outcomes/response to future treatment
chemo consolidation phase
- goal to eradicate disease that is below the level of detection
- can be done with chemo or stem cell transplantation
chemo maintenance phase
-lower doses of treatment for prolonged periods of time to improve chances of cure
what is chronic leukemia
- no blasts
- slow progression and could go diagnosed for long time
- some of these cancers produce too many cells and some produce too little cells
- involves more mature blood cells that replicate or accumulate more slowly and can function normal for some time
- if white count is increased thats okay until see blasts
CLL symptoms
- b symptoms
- early satiety (getting full)
- increased risk of infection
- hyperkalemia (wbc blow up while drawing blood so now k+ is outside the wbc and in plasma so the sample you drew has high k+ but your actual blood is not)
CLL treatment
- BTK- inhibitors like ibrutinib or acalabrutinib
- BCL-2 inhibitors like venetoclax
CML symptoms
-weakness, fatigue, SOB, fevers, bone pain
treatment of CML
-tyrosine kinase inhibitors like ponatinib, imatinib, nilotinib
what is lymphoma
- arises infection fighting cells of the immune system (lymphocytes-a type of WBC made in the bone marrow)
- when bacteria and other invaders are found in the lymph fluid, lymphocytes will multiply within the lymph nodes including b, t and natural killer cells
- lymphomas develop when these lymphocytes transform from healthy to malignant cells
how do lymphocytes normally circulate the body
-via the lymphatic system
function of lymph nodes
-key structure of lymphatic system found throughout the body and help filter lymph fluid to remove foreign particles
hodgkin lymphoma
- presence of reed stern-berg cells (large cancerous B cell derived cells with distinct appearance)
- one of most treatment responsive cancers that most pt can be cured
Non-hodgkin lymphoma
- diverse group of diseases distinguished by characteristics of the cancer cells associated with each disease type
- most people with NHL have b cell type others will have t cell type or NK cell type lymphoma
- more aggressive but still may be completely cured for fast growing
- slow growing tx effective in stabilizing disease for long time
symptoms of lymphoma
-b symptoms: night sweats, early statiety= weight loss, painless lymphadenopathy, fever
DX for lymphoma
- lymph node biopsy
- Imaging: PET/CT: hot spots may appear
- peripheral labs
- bone marrow biopsy
tx for lymphoma
- immunotherapy
- chemo
- radiation
- stem cell transplant
- CAR-T therapy
multiple myeloma (MM)
- cancerous plasma cells accumulate in bone marrow and crowd out the healthy cells and make abnormal proteins (antibodies)
- forms in the WBC (the plasma cell)
- normally healthy plasma cells would help fight infection by making antibodies that recognize and attack germs but with MM cant
symptoms of MM
- CRAB
- c= high calcium
- R= renal (kidney) problems- AKI
- A= anemia or low HgB
- B= bone problems
-I= infection
DX if MM
- peripheral labs: serum free light chains, immunoglobulins, M protein
- Bone marrow biopsy
- PET/CT: hot spots
TX for MM
- NOT CURABLE
- want to: have longest deepest remission
- immunotherapy
- chemo
- radiation
- stem cell transplant
- CAR-T therapy
Stem cell transplant
- process of administering CD 34 (STEM CELLS) into the host after preparative chemo regimen
- essentially eradicate disease via high dose chemo that people cant survive without stem cell transplant then rescue them with stem cells and or initiating graft vs disease effect
- now new healthy immune system can function and you have functional bone marrow that can provide hematopoiesis
Autologous stem cell source
- patients own stem cell
- collected after mobilization with high dose neupogen
Allogenic stem cell source
- donor stem cell
- matched related donor (sibling)
- matched unrelated donor
- cord (fetal umbilical cord) donor
- syngenic (identical twin)
- Haplo-identical (1/2 matched donor)
major complications of stem cell transplant
- Sinusoidal Obstructive Syndrome
- Graft Versus Host Disease
Sinusoidal Obstructive Syndrome
- rare
- gumming up of the liver
- actegol can help
Graft Versus Host Disease (GVHD)
- donors T cells (graft) view the patients healthy cells (the host) as foreign and attack and damage them
- mild, mod, or severe
- could be threatening
TX of Graft Versus Host Disease (GVHD)
-increased immunosuppression in the form of corticosteroids (medicines such as prednisone, methylprednisolone, dexamethasone, beclomethasone and budesonide)
Chronic GVHD
- syndrome that may involve one organ or many
- leading cause of medical problems and death after allogenic stem cell transplant
hard thing about GVHD
- want some of this to kill of the remaining cancer cells but dont want too much
- very fine balance
cancers that can use autologous stem cell
LETS MAKE CANCER AA TABOO NAME
- Lymphoma
- Multiple Myeloma
- CLL
- Amyloidosis
- Some autoimmunedisorders
- Testicular
- Neuroblastoma
cancers that can use allogenic stem cell transplant
- ALL / AML / MDS
- Some refractoryLymphomas
- PNH
- CML/CLL
- Sickle cell disease
- Some autoimmunedisorders
- Myelofibrosis
- Aplastic Anemia
CAR-T therapy
- type of immunotherapy that genetically modifies a patient’s own T cells to recognize and bind to specific proteins (tumor-associated antigens) on the surface of antigen-expressing cells
- The external targeting domain binds to the antigen, activating the CAR T cell.
- Once activated, CAR T cells release cytokines and other soluble mediators that may play a role in the killing of antigen-expressing target cells.
benefit of CAR-t therapy
- manufactured for each individual patient using their own T cells.
- After a one-time treatment, CAR T cells can continue to multiply in a patient’s body (cell expansion) and have the potential to remain in the blood for up to 1 year following administration
What is CAR T currently used in
- Multiple Myeloma
- Lymphoma
- ALL (Acute Lymphocytic Leukemia)
CAR-T therapy toxicity
- Cytokine Release Syndrome (CRS)
2. Immune Effector Cell-Associated Neurotoxicity
Cytokine release syndrome (CRS)
-response to the over-activation of the immune system response with a supraphysiological release of inflammatory cytokines
symptoms of CRS
- MIMIC SEPSIS
- can be quickly progressive
- fever
- hypotension
- hypoxia
- organ dysfunction
*occur rapidly and without warning within the first 8 weeks (average at 5-7 days) after CAR T-cell infusion
life threatening complications of CRS
- cardiac dysfunction
- ARDS from capillary leak
- renal or hepatic failure
- DIC
- HLH
Immune effector cell associated neurotoxcicty (ICANS)
-diverse adverse event associated with immune effector cells (IEC) and may involve blood-brain barrier disruption, elevated levels of excitatory neurotransmitters as well as pro-inflammatory cytokines and activated lymphocytes in the CNS