Myeloma Flashcards
what is a paraprotein?
monoclonal immunoglobulin present in blood or urine
how would you identify paraprotein?
serum protein electrophoresis
tests? (3)
total immunoglobulin levels
immunofixation
light chains
what does IgM paraprotein mean?
lymphoma
what does IgG or IgA paraprotein mean?
myeloma
what is myeloma?
neoplastic disorder of plasma cells that results in excessive production of a single type of immunoglobulin
what is CRAB?
hypercalcaemia
renal failure
anaemia
bone disease
describe the bone disease in myeloma?
lytic bone lesions
pathological fractures
cord compression
what common symptom in myeloma?
infection
the 4 effects of paraprotein?
renal failure
hyperviscosity
hypogammaglobulinaemia
amyloidosis
what does hyperviscosity cause?
bleeding
what is deposited in amyloidosis?
fibrillar protein
what is the term when there is nothing wrong with paraproteins?
Monoclonal Gammopathy of Uncertain Significance (MGUS)
what is key finding on investigation to diagnose myeloma?
> 10% plasma cells in the bone marrow population
myeloma treatment? (6)
chemotherapy bisphosphonates radiotherapy steroids surgery stem cell transplant