Cardiac plasmacytoma with extensive infiltration: multimodal diagnosis and therapeutic challenges: a case report

This case contributes to the limited literature on cardiac plasmacytoma. The role of multimodality imaging for mass characterization is highlighted. Yet, imaging characteristics alone may be indistinguishable from those of primary cardiac malignancies, making tissue diagnosis crucial. Despite advances in systemic therapies that may induce marked tumour responses, long-term prognosis remains guarded. Notably, this case represents one of the longest reported survivals among patients with cardiac involvement.