Chapter 14: hematological Flashcards
_____% of cancers diagnosed in the US are hematologic
10% and account for 9% cancer deaths
Risk factors for blood cancers
White male > 65 y/o
past chemo and radiation
Smoking
Exposure to toxins (agent orange) and weakened immune system
Obesity
Higher BMI in adulthood is ______ associated with hematological cancer risk
Positively
**sufficient evidence that lack of body fatness decreases risk for multiple myeloma
Leukemia is characterized by an ________ (increase/decrease) production of WBC
Increased production but they’re immature which impairs the ability to fight infection & produce RBC/platelets
Name the 4 main types of Leukemia
- Acute lymphoblastic leukemia
- Chronic lymphocytic leukemia
- Acute myeloid leukemia
- Chronic myeloid leukemia
Signs/symptoms of leukemia
Anorexia, wt loss, anemia, enlarged lymph nodes, abdominal swelling/spelanomegaly, bone/joint pain, signs of bleeding
Is Hodkin’s Lymphoma or Non-Hodkin’s Lymphoma more prevalent?
Non-Hodkin’s, over 60 different types
What are the 2 most common types of non-hodkins lymphoma?
- Diffuse Large B Cell Lymphoma - fast growing
- Follicular lymphoma - slow growing
What is an aggressive sub-type of lymphoma called?
Double-hit diffuse b cell lymphoma
What are 3 signs/symptoms of leukemia that are not typically present with lymphoma?
Bone pain, anemia, splenomegaly (yet may have abdominal swelling)
What is a plasma cell neoplasm?
Often just referred to as multiple myeloma yet it encompasses other types.
Conditions in which plasma cells develop from B-cells in the bone marrow in response to infection from bacteria/viruses. The plasma cells make antibodies to fight this infection. Some plasma cell neoplasms are benign
What is the most common plasma cell neoplasm?
Multiple Myeloma (90%)
What is the name of the pre-cancerous plasma cell neoplasm?
Monoclonal Gammopathy of Undetermined Significance (MGUS)
Most cases of Monoclonal Gammopathy of Undetermined Significance are benign, however 25% convert to ________ or another B-cell related disorder
Multiple Myeloma
Multiple Myeloma is classified by the _____ protein it produces, which does not fight infection.
M
Can build up in the urine/blood, thus causing damage to the kidneys/other organs
What is the difference between multiple myeloma & plasmacytoma?
Multiple myeloma is the buildup of plasma cells in MULTIPLE areas of the body, including the spine, skull, long bones, ribs. Characterized by M cells.
Plasmacytomas form in just ONE area
What are the 2 types of plasmacytoma?
- Solitary Plasmacytoma - uncommon, found in the bone. Treated with radiation and sometimes surgery
- Extramedullary plasmacytoma - more common, found in soft tissue (usually upper respiratory) and treated with surgery.
What is Amyloidosis?
Not cancer, but occurs when insoluble amyloid proteins are deposited throughout the body organs (kidney, heart, nervous system, GI tract). This leads to organ dysfunction and death. Commonly associated w/ MM.
What’s the difference between a bone marrow biopsy & bone marrow aspirate
Biopsy - just marrow
Aspirate - marrow and piece of bone
Is TNM system used for staging of hematological cancers?
No -they do not normally form solid tumors
Instead classified by blood counts and leukemia cells found in other parts of the body (i.e. liver spleen)
Lymphoma uses Lugano Classification System
What is the name of the staging system for lymphomas?
Lugano Classification System
Involves # of lymph nodes, where they are relative to the diaphragm (one or both sides) and if there’s mets outside of the lymphatic system
_______ is the standard of treatment for AML
Chemotherapy
(induction & consolidation)
Sometimes targeted therapy or radiation is used for specific sites
What is the goal of induction therapy & how is this confirmed?
To achieve remission
Bone marrow biopsy 14-21 days after starting. Sometimes requires 2 rounds.
Define consolidation
Treatment aimed to destroy leukemia cells that survived induction but are undetectable by tests