Year: 2025 | Month: February | Volume: 15 | Issue: 2 | Pages: 127-130
DOI: https://doi.org/10.52403/ijhsr.20250216
Solitary Extramedullary Plasmacytoma Masquerading as Osteomyelitis in an Elderly Male - A Rare Case Report
Rachana Koppalkar1, Kuladeepa Ananda Vaidya2, Geethu S3, Athira K P4
1Assistant Professor, Department of Pathology, Srinivas Institute of Medical Sciences, Mangalore, Karnataka, India
2Professor, Department of Pathology, Srinivas Institute of Medical Sciences, Mangalore, Karnataka, India
3Postgraduate, Department of Pathology, Srinivas Institute of Medical Sciences, Mangalore, Karnataka, India
4Assistant Professor, Department of Pathology, Srinivas Institute of Medical Sciences, Mangalore, Karnataka, India
Corresponding Author: Dr Rachana Koppalkar
ABSTRACT
Extramedullary plasmacytoma is characterised by plasma cell proliferation in organs or tissues outside the bone marrow. It originates from B lymphocytes with 60% cases arising in nasal cavity, paranasal sinus and nasopharynx. Extramedullary plasmacytoma corresponds to less than 10% of all plasmacytic tumors representing less than 1% of all head and neck tumors. Typically affects 5th to 7th decade of life having male predominance in Caucasian population. Global incidence is 1 case per 5,00,000 people. This is a rare case of extramedullary plasmacytoma of the soft tissue around the knee a highly uncommon site in an elderly male.
Key words: Extramedullary plasmacytoma, soft tissue knee