Agnogenic Myeloid Metaplasia-2
Myelofibrosis:
Clinical features:
Type I, III, and IV collagen present
Extramedullary hematopoiesis results in:
Immune response:
50% have humoral immune response abnormalities such as:
Autoantibodies (RBC, nuclear, g-globulins)
Circulating immune complexes (C’)
May also be seen in benzene & radiation injury to bone marrow
Hepatomegaly & splenomegaly
Results when clonal cells released from bm get established in these organs
amyloidosis