Lymphoma (zero to finals) Flashcards
What is lymphoma?
A type of cancer affecting the lymphocytes inside the lymphatic system.
Cancerous cells proliferate inside the lymph nodes, causing the lymph nodes to become abnormally large (lymphadenopathy).
What are the main 3 sites where enlarged lymph nodes can be palpated on examination?
Cervical
Axillary
Inguinal
What are the 2 main types of lymphoma?
Hodgkin’s lymphoma (specific disease)
Non-hodgkin’s lymphoma (includes all other types)
What is the most specific type of lymphoma?
Hodgkin’s lymphoma
Average ages affected by Hodgkin’s lymphoma?
Bimodal age distribution with peaks around 20-25 and 80 years.
What are the risk factors for Hodgkin’s lymphoma?
HIV
Epstein-Barr virus
Autoimmune conditions, such as rheumatoid arthritis and sarcoidosis
Family history
Non-hodgkin’s lymphoma consists of many types. What are 3 main ones?
Diffuse large B cell lymphoma typically presents as a rapidly growing painless mass in older patients
Burkitt lymphoma is particularly associated with Epstein-Barr virus and HIV
MALT lymphoma affects the mucosa-associated lymphoid tissue, usually around the stomach (cause includes H.pylori)
What are some risk factors for non-hodgkin’s lymphoma?
HIV
Epstein-Barr virus
Helicobacter pylori (H. pylori) infection is associated with MALT lymphoma
Hepatitis B or C infection
Exposure to pesticides
Exposure to trichloroethylene (a chemical with a variety of industrial uses)
Family history
What is a major presenting feature of lymphomas?
Lymphadenopathy is the key presenting symptom.
The enlarged lymph node or nodes might be in the neck, axilla or inguinal region.
They are characteristically non-tender and feel firm or rubbery.
When may patient’s with Hodgkin’s lymphoma experience lymph node pain?
After drinking alcohol
What are the B symptoms (systemic symptoms) of lymphoma?
Weight loss
Night sweats
Fever
What are some additional non-specific symptoms that can occur with lymphoma?
Fatigue
Itching
Cough
Shortness of breath
Abdominal pain
Recurrent infections
What is the main diagnostic investigation for lymphoma?
Lymph node biopsy
What cells would a Hodgkin’s lymphoma lymph node biopsy show?
Reed-Sternberg cells are the characteristic finding from a biopsy of Hodgkin’s lymphoma.
They are large cancerous B lymphocytes with two nuclei and prominent nucleoli, giving them a cartoonish appearance of an owl face with large eyes.
Apart from lymph node biopsy, what other investigations may be used?
CT, MRI, and PET scans may be used to help diagnose and stage the disease.