LYMPHOMA Flashcards
what is a lymphoma
a cancerous tumor found in peripheral lymph tissue
how is lymphoma divided/categorized
what do they both share in terms of involvement of tissues
Hodgkin’s and non-Hodgkins
both: bone marrow involvement as well as the undisciplined growth of lymphoid tissue and lymph nodes
Hodgkin’s lymphoma is characterized by
where does the cancer begin?
how does it spread?
the presence of atypical, sizeable mononuclear tumor cells which arise from a postgerminal B cell called Reed-Sternberg cells
begins unicentrically in a lymph node and spreads to contiguous lymph nodes
non-Hodgkin’s lymphoma begins in
spreads to
Non-Hodgkin’s lymphomas are a group of heterogenous cancers which arise multicentrically from B and T lymphocytes and spread to other tissues in the body such as the bone marrow.
Etiology of Hodgkin’s
viral (Eppstein Barr virus?)
genetic
immune
who does Hodgkin’s occur in
It occurs most commonly between the ages of 15 and 40 and also in people age 55 and older.
patho of Hodgkin’s
Hodgkin’s lymphoma begins unicentrically in one lymph node.
The tumors tend to be heterogenous and the malignant Reed-Sternberg cell may make up only a small portion of the tumor itself. The spread is contiguous to adjacent lymph nodes
mnfts of Hodgkin’s
B symptoms or no?
- non painful lymphadeonpathy on one side of the neck most commonly occurs in
- cervical
- supraclavicular
- mediastinal nodes
- pruritus
- intermittent fevers w associated night sweats
also will have impaired cellular immunity
B symptoms (found in more severe cases, good for prognosis, found in 40% of cases)
- drenching night sweats
- weight loss of more than 10% of body weight
- fever without chills
Dx of Hodgkins
presence of Reed-Sternberg cells in biopsy
Tx of Hodgkin’s lymphoma
depends on stage
- combo therapy
- chemo
- sometimes radiation
et of non-Hodgkin’s lymphoma
unclear
incidence inc w age
infectious agents, prior cancer treatment, prior organ transplant, exposure to certain chemical agents such as pesticides, dyes, solvents, defoliants such as Agent Orange, and an impaired immune system may be implicated
what does non-Hodgkin’s lymphoma arise from
which is more common
B and T cells
B cell lymphomas are more common
spread of the malignancies is erratic and may involve multiple lymph nodes or even spread into other tissues
mnfts of non-Hodgkin’s lymphoma
variable as the course of the disease varies
lymphadenopathy is most common
may be asymptomatic
1/3 have B symptoms
Tx of non-Hodgkins lymphoma
depends on classification, stage, status of pt, hx of Tx
in order of light tx to heavy
-radiation
-interferons and chemo
even the most aggressive forms of non Hodgkins are curable when Tx is aggressive