Non Honon Hodgkin Lymphoma Flashcards
(93 cards)
Definition of non-Hodgkin lymphoma
non-Hodgkin lymphoma is a heterogenous group of malignant proliferation of lymphoid tissue (progenitor and mature B and T-cells).
What is the typical clinical course of pediatric Non-Hodgkin lymphoma (NHL) if left untreated?
Very fatal
How do pediatric NHLs typically behave in comparison to adult NHLs?
pediatric Non-Hodgkin lymphomas (NHLs) are typically “high grade and aggressive” in their clinical behavior, unlike adult NHLs which often have an indolent course.
What happens to Non-Hodgkin lymphoma cells in terms of dissemination?
Non-Hodgkin lymphoma cells in children “disseminate very early and run a very rapid clinical course
What type of cells are involved in the malignant proliferation of Non-Hodgkin lymphoma?
lymphoid tissue (progenitor and mature B and T-cells).
What percentage of lymphomas in children is accounted for by Non-Hodgkin lymphoma (NHL)?
60% of lymphomas in children
What is the peak age range for incidence of NHL in children?
Peak incidence between 5 and 15 years
What is the male-to-female ratio for NHL incidence?
Ratio of male to female is 2:1
What percentage of NHL makes up all neoplasia in children.
5% of all neoplasia in children.
Non-Hodgkin lymphoma (NHL) rarely occurs before what age
rarely before the age of 2 years.
What is the relationship between certain viruses and the development of Non-Hodgkin lymphoma (NHL)?
viruses like HIV can cause secondary Non-Hodgkin lymphoma (NHL) in a small proportion of cases.
What genetic syndrome is mentioned as being associated with an increased risk of NHL?
syndrome-Bloom,
ataxia telangiectasia.
What chromosomal translocation is specifically associated with Burkitt lymphoma (BL)?
Burkitt lymphoma (BL) is associated with a translocation involving chromosome 8 (c-MYC oncogene) and one of the immunoglobulin gene chromosomes, typically t(8;14), or less commonly t(2;8) or t(8;22).
What is mentioned as a co-factor in the development of Burkitt lymphoma?
malaria is indeed mentioned as a co-factor in the development of Burkitt lymphoma (BL), potentially by priming the lymphatic system.
What immunodeficiency syndrome is associated with an increased risk of secondary NHL?
Both SCID (Severe Combined Immunodeficiency) and Wiskott-Aldrich syndrome are mentioned as immunodeficiency conditions that can increase the risk of developing secondary Non-Hodgkin lymphoma (NHL).
What is the origin of Lymphoblastic Lymphoma (LBL) according to the text?
According to the text, Lymphoblastic Lymphoma (LBL) indeed arises from immature B or T lymphocytes.
What types of cell neoplasms are Burkitt Lymphoma (BL), Diffuse Large B-Cell Lymphoma (DLBCL), and Anaplastic Large Cell Lymphoma (ALCL) classified as?
classified as mature B or T cell neoplasms.
What subtypes of DLBCL are mentioned in the text?
The text mentions two subtypes of DLBCL:
- Germinal center B-cell like
- Activated B-cell like
Additionally, it mentions a third subtype:
- Primary mediastinal B-cell
What are the names of the 4 subtypes of major pathologic subtypes of childhood and adolescent Non-Hodgkin lymphoma (NHL) mentioned?
The 4 major pathologic subtypes of childhood and adolescent NHL mentioned are:
- Lymphoblastic lymphoma (LBL)
- Burkitt lymphoma (BL)
- Diffuse large B-cell lymphoma (DLBCL)
- Anaplastic large cell lymphoma (ALCL)
Well done!
What percentage of Lymphoblastic Lymphoma (LBL) cases are of T-cell origin?
According to the text, 90% of Lymphoblastic Lymphoma (LBL) cases are indeed of T-cell origin.
What antigen is expressed by Anaplastic Large Cell Lymphoma (ALCL)?
According to the text, Anaplastic Large Cell Lymphoma (ALCL) indeed expresses the CD30 antigen.
-cell antigens are frequently expressed by Burkitt Lymphoma (BL) and Diffuse Large B-Cell Lymphoma (DLBCL)?
According to the text, BL and DLBCL frequently express the B-cell antigens:
- CD19
- CD20
- CD22
Well done!