Journal of Cytology
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Year : 2014  |  Volume : 31  |  Issue : 3  |  Page : 158-160

Solitary bone plasmacytoma: An interesting case report with unusual clinico-cytological features

Department of Pathology, Maulana Azad Medical College, New Delhi, India

Correspondence Address:
Annapurna Saksena
Department of Pathology, Maulana Azad Medical College, New Delhi - 110 002
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0970-9371.145650

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Solitary bone plasmacytoma (SBP) is a rare entity characterized by localized proliferation of monoclonal plasma cells primarily occurring in the axial skeleton without systemic involvement. Involvement of the distal extremity is unusual. In the absence of typical clinical presentation, diagnosis may not be suspected clinico-radiologically; hence, fine-needle aspiration cytology may help in early and definitive diagnosis, hastening meticulous diagnostic workup and appropriate management of these patients. Intracytoplasmic crystalline inclusions (CI) have been reported in multiple myeloma and lymphoproliferative disorders. The present case highlights unusual clinico-cytological features of SBP with primary involvement of humerus, progression to tibia, and presence of extracellular and intracytoplasmic CI in plasma cells, a morphologic finding not reported in SBP earlier.

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