Pathology of Non-Hodgkin Lymphoma Flashcards
Multiple myeloma is positive for what protein markers?
CD38+, CD138+
True/False. Non-aggressive types of non-Hodgkin lymphoma are often not curable.
True - they are less responsive to chemotherapy than aggressive NHLs
This type of non-Hodgkin lymphoma has a “starry sky” appearance on histology.
Burkitt Lymphoma
Diffuse Large B-Cell lymphoma with this molecular marker carry the worst prognosis.
MYC tanslocations
What is the immunephenotype for mantle cell lymphoma?
CD20+, CD5+, CyclinD1/BCL1+
What chromosomal translocation causes Burkitt lymphoma and the corresponding effect?
t(8;14) causing upregulation of c-MYC
True/False. Non-Hodgkin lymphomas are more likely to remain in a set of lymph nodes.
False - NHL is more likely to appear sporadically, whereas Hodgkin lymphoma presents regionally
What chromosomal translocation causes the non-Hodgkin lymphoma associated with MALT (mucosa-associated lymphoid tumors)?
Marginal Zone Lymphoma - t(11;18)
What is Waldenstrom macroglobulinemia?
A hyperviscosity syndrome caused by hypersecretion of IgM in lymphoplasmacytic lymphoma
What virus is present in nearly all cases of Burkitt Lymphoma?
EBV
A patient is diagnosed with a type of non-Hodgkin lymphoma that is CD30+ and has rearrangements of ALK and wreath cells on histology. What is the diagnosis?
Anaplastic T-Cell Lymphoma
Follicular lymphoma is most common in what age population?
Older adults
Excess free light chains are excreted in the urine by patients with multiple myeloma. What are these chains called?
Bence Jones Proteins
This plasma cell disorder is an early stage of multiple myeloma development.
Monoclonal Gammopathy of Undetermined Significance (MGUS)
Cells in the germinal center of a lymph follicle generally stain positive for what CD marker?
CD10+
What is the clinical presentation of multiple myeloma?
Hypercalcemia, renal dysfunction, anemia, bone lesions
Lymphoplasmacytic lymphoma is associated with mutations of what gene?
MYD88 - increases NF-kB activity
Follicular lymphoma stains positive for what immune markers?
CD20+, CD10+, BCL2+
An M spike due to monoclonal M on a serum protein electrophoresis is characteristic of what type of lymphoma?
Multiple Myeloma
What is the immunohistological profile of the non-Hodgkin lymphoma with “soccer ball” nuclei?
Small Lymphocytic Leukemia - CD20+, CD5+, CD23+
What is the clinical presentation of Burkitt lymphoma?
Endemic BL - tumor of the jaw and face
Sporadic BL - abdominal masses
Upregulation of BCL6 is most association with what lymphoma type?
Diffuse Large B-Cell Lymphoma (also BCL2+ and MYC+ in some cases)
Patients with multiple myeloma have high amounts of what antibody chains?
IgG heavy chain and kappa light chain
What is the most common and deadly plasma cell neoplasm?
Multiple myeloma
What is the most common type of non-Hodgkin lymphoma?
Diffuse Large B-Cell
What bones are most commonly affected by multiple myeloma?
Vertebral column
What chromosomal translocation is associated with Follicular Lymphoma the result?
t(14;18) leading to upregulation of BCL2
What is the histologic appearance of mantle cell lymphoma?
Thickened and expanded mantle zone with irregular lymphocytes
This is a B-cell neoplasm in which cells undergo differentiation to plasma cells and secrete IgM.
Lymphoplasmacytic Lymphoma
This type of non-Hodgkin lymphoma is due to a t(11;14) that causes overexpression of cyclin D.
Mantle Cell Lymphoma
Smudge cells characterize chronic lymphocytic leukemia. What cells characterize the tissue version of CLL?
Small Lymphocytic Lymphoma - cells with soccer ball nuclei
Cells in the mantle zone of lymph follicles generally stain positive for what CD marker?
CD5+
What is tumor lysis syndrome and what non-Hodgkin lymphoma is most associated with the disorder?
Burkitt Lymphoma - Tumor lysis syndrome is massive tumor cell lysis causing hyperuricemia, hyperuricosuria, hyperkalemia, and hypophophatemia that leads to renal failure
This type of non-Hodgkin lymphoma presents with diffuse sheets of mature B cells.
Diffuse Large B-Cell Lymphoma
What histological findings are characteristic of multiple myeloma?
Flame cells and Mott cells and Russell or Dutcher bodies
This is a common indolent non-Hodgkin lymphoma that presents with hyperplasia of mature B cells in the germinal centers.
Follicular Lymphoma