Splenomegaly Flashcards
Splenomegaly WITHOUT enlarged LNs
Myeloproliferative disease - CML, myelofibrosis
Splenomegaly WITH enlarged LNs
Lymphoproliferative disease - lymphoma and CLL
Characteristics of spleen
Enlarges towards RIF, possesses a medial notch, dull to percussion, not ballotable, one cannot palpate above
Causes
Portal hypertension 33%
Haematological malignancy 27%
Infection 23%
Congestion or inflammation 8%
Primary splenic disease 4%
Massive splenomegaly
CML
Myelofibrosis
Visceral leischmaniasis
Malaria
AIDS
Moderate splenomegaly
Portal hypertension
Lymphoma
Leukaemia
Thalassaemia
Glycogen/lipid storage
Mild splenomegaly
Other myeloproliferative disorders
Haemolysis
Infection
Autoimmune
Infiltrative
Investigation
Full history
Bloods
CT scan
BM biopsy
B symptoms
Fever >38, weight loss >10% body weight over 6 months, drenching night sweats
CML genetics
Philadelphia chromosome - bcr-abl - chromosome 9 and 22 –> tyrosine kinase
Causes of hyposplenism
Splenic infarction
Splenic artery thrombosis
Infiltrative conditions
Coeliac disease
Autoimmune disease
Management of hyposplenism
Vaccinations - pneumococcal, HiB, meningitis C
Prophylactic antibiotics
Felty’s
RA, neutropenia and splenomegaly