Lymphomas and Multiple Myeloma Flashcards
What are the 4 typical locations for lymphomas to infiltrate?
- Lymph nodes
- Spleen
- Thymus
- Bone marrow
What are the 2 types of lymphomas?
- Hodgkins Lymphoma
2. Non-Hodgkins Lymphoma
What type of cell will be seen in nodules or follicles?
B cells
What type of lymphoid cell will be seen between follicles (paracortical)
T cells
Chronic lymphocytic leukemia (CLL) in the bloodstream is the same as _______ in the tissue
Small lymphocytic lymphoma (SLL)
What is the most common type of lymphoma in the western world?
B-cell Non-Hodgkin’s Lymphoma
B-cell Non-Hodgkin’s Lymphoma are uncommon in children except for which type?
Burkitt Lymphoma
- very aggressive
- In the jawbone
Most common type of B-cell Non-hodgkins Lymphoma?
follicular and diffuse*
In what situation does primary non-hodgkins lymphoma occur in the brain?
HIV
What is the most common B-cell lymphoma?
Diffuse non-hodgkins lymphoma
Follicular (nodular) Lymphoma
- low-grade
- slow growing
- 2nd most common (behind diffuse)
- older people (60s)
- follicular structure is preserved and the tumor cells resemble mature lymphocytes
Diffuse Large Cell Lymphoma
- most common B-cell lymphoma
- high grade
Histological features of diffuse B-cell Non-Hodgkins lymphoma
- complete effacement of normal lymph node architecture
- tissue infiltration
- large lymphoblast with irregular nuclei and prominent nucleoli
Diffuse Non-hodgkins Lymphoma: prognosis
Poor.
-high and intermediate-grade lymphomas survive only 1-2 years. Chemo can help 75% get to complete remission byt cure rate is extremely low
Burkitt’s Lympphoma
high grade malignant tumor of lymphoid stem cells that divides rapidly
What are the two extranodal site common in Burkitt’s lympphoma?
- Mandible
2. Facial soft tissue
Where is Burkitt’s Lymphoma commonly seen globaly?
sub-Saharan Africa
What virus and translocation are associated with Burkitt’s lymphoma?
EBV (DNA enveloped herpes virus)
8:14 translocation
What is a “starry sky” histology is associated with?
Burkitt Lymphoma
Non-Hodgkins Lymphoma will give fatigue, malaise, fever, weight loss and sweating + pancytopenia, why?
hypermetabolism (rapid turnover of proliferating tumor cells)
[slide 28]
What is the most common of the malignant lymphomas that is pathologically distinct from other lymphoid malignancies?
Hodgkin’s Disease
Who does hodgkin’s disease affect
- Bimodal distribution: 20s and 50s
- Males
- Whites
Young adults who have experienced ____ infections have a three-fold increased risk of developing Hodgkin’s Disease
EBV infection
What is the name for the classic cell in Hodgkin’s disease?
Reed-Sternberg cell
“owl-eye cell”
“mirror image cell”
What are two factors that may play a role in increased incidence of Hodgkin’s disease?
- Genetic, high risk in siblings
- Immune
- compromised immunity
- autoimmune diseases (ex. RA)
Hodgkin’s Disease is associated with _________immunity and increased risk of infections, especially _______
Hodgkins disease is associated with deficient or impaired cell-mediated immunity (T-cell)
Herpes Zoster
Describe the lymphadenopathy of Hodgkin’s Disease?
- Firm or rubbery
- focal areas of necrosis or softening
- Nodes can be matted together
Hodgkin’s Disease: splenic involvement correlates with what?
size of spleen
Hodgkin’s Disease spleen pathology
- White pulp is enlarged
- Later red pulp is involved
What are unusual/rare at initial diagnosis of Hodgkin’s Disease but involvement when disease progresses?
- Liver
2. Bone
Where in the liver is Hodgkin’s disease extend from?
Portal area
Which type of Hodgkin’s disease is the most common, and more common in women?
Nodular sclerosis HD
Which Hodgkin’s disease has the worst prognosis?
Lymphocyte depletion HD
Lymphocyte Predominance Hodgkin’s Disease
- uncommon
- Young males
- Cervical or axillary LAD
- Excellent prognosis
Nodular Sclerosis Hodgkin’s disease
- Most common
- Females>males
Lymphocyte depletion Hodgkin’s disease
- Worst prognosis
- Rare
- Older patients and HIV
Which nodes are most commonly involved in Hodgkins Disease?
Cervical**
- Mediastinal
- Axillary
Ann Arbor Staging is associated with which disease
Hodgkin’s Disease
Ann Arbor Staging: Stage I
Involvement of a single lymph node
Ann Arbor Staging: Stage II
Involvement of 2 or more lymph nodes, on the same side of the diaphragm
Ann Arbor Staging: Stage III
Involvement of lymph node regions on both sides of the diaphragm
Ann Arbor Staging: Stage IV
Disseminated extralymphatic
Treatment of Hodgkins Diseasee
- Chemo and radiation are highly effective
but. .. - Secondary cancers (lung, breast, NHL, AML, gastric cancer, melanocarcinomas)
- Pulmonary fibrosis
- Acceleration of atherosclerosis
Multiple myeloma
plasma cell neoplasm
-multiple skeletal sites
Multiple myeloma: describe the malignant transformation
single plasma cell with clonal expansion = monoclonal proliferation
How is Multiple myeloma detected?
Plasma cells make antibodies, so a monoclonal spike can be seen on protein electrophoresis
(the other tall spike is albumin)
Describe what happens during normal infection in regards to serum protein electrophoresis
infection causes polyclonal activation = Broad-shaped hump
Describe what population is at higher risk for multiple myeloma
- Older than 55yrs
- Male
- Black
What would you expect to see high in the blood with multiple myeloma? why?
hypercalcemia due to osteoblast activation
What would you expect to see on Xray of patient with multiple myeloma?
Punched out holes in blood-forming bones: calvarium + vertebrae
Where is the most likely place for the calcium to deposit in multiple myeloma?
kidney
What are Bence-Jones Proteins?
immunoglobulin light chain casts secreted in the urine
Describe the peripheral blood changes in multiple myeloma
normochromic normocytic anemia with rouleax formation due to increased sedimentation rate
Which is done first: Serum Electrophoresis or Serum Protein Immunoelectrophoresis
Serum Electrophoresis >Serum Protein Immunoelectrophoresis (which concentrates on the gamma region)
What else about the urine contributes to the free light chains having a toxic effect on the tubular epithelial cells of the kidney?
acidic pH of the urine
What can be found in the distal tubules and collecting ducts in Multiple Myeloma?
dense, hyaline casts that are brightly eosinophilic (“pink”) and glassy with angulated borders
What do people with multiple myeloma typically die of?
kidney failure or infection