Bone Marrow ExaminationTrephiningPlastic EmbeddingDecalcification TechniqueBone MarrowBiopsyHistocytological Preparation TechniquesIliumBone Marrow NeoplasmsEpikeratophakiaBone Marrow DiseasesBiopsy, NeedleHemosiderinParaffin EmbeddingMethylmethacrylateTissue FixationLeukemic InfiltrationPrimary MyelofibrosisPancytopeniaImmunoenzyme TechniquesHistological TechniquesNeuroblastomaImmunoglobulin lambda-ChainsStaining and LabelingLymphomaMedical AuditMegakaryocytesLymphoma, Non-HodgkinCorneaMyelodysplastic SyndromesMultiple MyelomaRetrospective StudiesBone Marrow CellsImmunohistochemistryAntibodies, MonoclonalSensitivity and Specificity