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Figure II (4-7 cases). Case(4A) BM aspirate: Crystal storing histiocytes.  4(B) Plasma cells showing intracytoplasmic crystal similar to histiocytes . 4(C) trephine biopsy: Focal nodular and interstitial infiltrates of plasma cells including ocassional immature forms and aggregates of histiocytes. Case 5A: Bone marrow aspirate shows large atypical cell with markedly pleomorphic nuclei and moderate amounts of pale eosinophilic  cytoplasm resembling dysplastic megakaryocytes.  5B trephine biopsy with immature/atypical cells with eccentrically placed hyperchromatic, lobated and pleomorphic nuclei with clumped chromatin and moderate amounts of pale eosinophilic cytoplasm resembling dysplastic megakaryocytes. 5C Atypical cells were positive for MUM 1 immunohistochemistry. Case 6A&B  bone marrow aspirate shows plasma cells with numerous large, cytoplasmic azurophilic like granules. Case 07: Bone marrow showed 70% plasma cells with predominant atypical multilobulated popcorn like morphology including immature forms.