ABSTRACT
The myelogram is considered one of the most valuable diagnostic tools for assessing hematological abnormalities. This work aims to clarify the indications of the myelogram in our context and to review the contribution of this examination to the diagnosis process. We present the results of a retrospective study, covering all myelograms performed in the hematology laboratory of the Avicenna military hospital in Marrakech. The prevalence of hematological diseases was 36% of all the studied myelograms. The indications were dominated by disturbances of the hemogram [66 %]. Of the 291cases reported, bone marrow plasmocytosis accounted for 15 % of pathologies diagnosed as compared to 9% of leukemias, 7% of megaloblastosis and 4% of myelodysplastic syndromes. Twenty two percent of the myelogram were reactive, while 31% of the samples were diluted and uninterpretable. The contribution of the myelogram to the diagnosis is subject to its good interpretation which highly depends on how good it was performed