Lymphomas Flashcards
What are lymphomas
Neoplasms of lymphoid origin, typically causing lymphadenopathy
According to WHO in 2001, lymphomas are classified into
Hodgkin’s and Non hodgkin’s
Non hodgkins lymphoma are further divided into
B-cell neoplasms :precursor and mature
T cell and Nk neoplasms: p and m
Risk factors for NHL
FI³C
Family history of lymphoma
Ionising radiation
Infectious agents
Immunosuppression
Connective tissue disease
Clinical manifestations of lymphoma
Be very SLICK when talking about lymphoma: V-SLC
VARIABLE
Could be symptomatic or asymptomatic
Time course- could evolve over weeks, months,even years.
SYSTEMIC MANIFESTATION
Constitutional symptoms like fever, night sweats,weight loss
LOCALISED MANIFESTATION
lymphadenopathy,splenomegaly most common
Any tissue can be infiltrated
Other COMPLICATIONS
Immune hemolysis
Bm failure
Cns infiltration pleural/pericardial effusions
For lymphomas, diagnosis MUST be biopsy proven before initiating therapy and must be Confirmed by Immunopenotyping. T/F
T
Gold standard for lymphoma diagnosis
Excisional/incisional biopsy
What are the trephine methods that can be used for lymphoma diagnosis
Core needle vs open vs fine needle aspiration biopsy
Necessary because enough tissue is needed to assess cells and architecture
Staging of hodgkins lymphoma
?
The three common lymphomas include, which is the commonest
Follicular lymphoma
Diffuse large b cell lymphoma -commonest
Hodgkin’s lymphoma
What are the indolent lymphomas
Slowly follow the margin
Small lymphocytic lymphoma
Lymphoplasmacytic and Waldenstrom macroglobulinemia
Follicular lymphoma
Marginal zone Bcell malt and nodal lymphoma
Most common indolent lynphoma
Follicular lymphomas
Hodgkin’s lymphoma was discovered by ?
Thomas Hodgkins
Cell of origin of hodgkin’s lymphoma
Germinal center B cells
Remember the REAL classification of hodgkins lymphoma
Classical and non classical
In hodgkin’s lymphoma, most cells are neoplastic cells rather than polyclonal reactive lymphoid cells . T/f
F…most are polyclonal reactive lymphoid cells
Epidemiology of hodgkins lymphoma
Less frequent than NHL
Male predilection
Peak incidence at 3rd decade of life
Associated or etiology factors of hodgkin’s lymphoma
Shope is the cause of hodgkin’s lymphoma
S- small family size
H-higher socioeconomic status
O-others like hiv, herbicides,occupation
P-possible genetic predisposition
E-EBV infection
The bimodal age distribution of hodgkins lymphoma is between
20-30yrs for young adults
>50 yrs for elderly
However may occur at any age
Describe the lymphadenopathy in hodgkin’s lymphoma
CAPENERs SIGN
C-Cervical region
A-Asymmetrical, discreete
P-Painless, non tender
E-Elastic character on palpation
N-Non adherent to skin
E-fluctuant in size
R-Rare extranodal involvement
S- Spleen and liver enlargement