Haem- other Flashcards
pancytopenia
a deficiency of blood cells of all lineages (generally excludes lymphocytes)
is pancytopenia a diagnosis?
NO- reflects a diagnosis
causes of pancytopenia
reduced production
OR
increase destruction
causes of reduced production of blood cells
bone marrow failure- acquired/inherited/secondary
Inherited marrow failure syndrome- Fanconi’s anaemia CF
short stature
skin pigment abnormalities
hypogenitillia
endocrinopathies
GI
CVS
renal
haematological
skin change in Fanconi’s anaemia
cafe au lait spots- flat, light to dark brown patches on the skin
idiopathic aplastic anaemia
autoimmune attack against haemopoioetic stem cells
myelodysplastic syndromes
increased apoptosis of progenitor and mature cells, propensity for evolution into AML
secondary bone marrow failure- drug induced examples
chemotherapy
alcohol
azathioprine
methotrexate
causes of increased destruction of blood cells
hypersplenism
causes of hypersplenism
splenic congestion- portal hypertension
systemic diseases- RA
haematological diseases- splenic lymphoma