This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in

Laboratory findings

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

  • pancytopenia occurs in over 50% of cases - a result of marrow failure and splenic sequestration
  • anaemia is common
  • thrombocytopenia and neutropenia found in 75% of cases
  • peripheral blood smear shows small numbers of "hairy cells" characterised by numerous cytoplasmic projections; less frequently, the hairs dominate the smear
  • hairy cells stain positively for tartrate resistant acid phosphatase and express CD11c and CD25
  • hairy cells often infiltrate the red pulp of the spleen
  • bone marrow is often dry and inaspirable

Create an account to add page annotations

Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page