RADIOLOGY: HEMATOLOGIC: BONE MARROW: AGNOGENIC MYELOID METAPLASIA (MYELOFIBROSIS, PRIMARY): BONE MARROW SCAN; SCAN SHOWS NO MARROW ACTIVITY EXCEPT FOR FAINT UPTAKE IN THE STERNUM. MARKED CONCENTRATIONS OCCUR IN THE LIVER AND SPLEEN WITH GREATER ACTIVITY IN THE SPLEEN. ENLARGEMENTS OF BOTH LIVER AND SPLEEN ARE NOTED, THESE FINDINGS INDICATE EXTRAM (RADIONUCLIDE SCAN)