Extramedullary Plasmacytoma Involving the Heart: A Case Report and Focused Literature Review

Cardiac tumors are extremely rare. Here, we report an unusual case of cardiac plasmacytoma that occurred 11 years after complete remission of the original multiple myeloma (MM). The tumor primarily manifested as a solitary extramedullary plasmacytoma (SEP) with extensive infiltration into the heart...

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Detalles Bibliográficos
Autores principales: Guan, Xuan, Jalil, Anum, Khanal, Kishor, Liu, Baoqiong, Jain, Akriti G
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Cureus 2020
Materias:
Cardiology
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7182159/
https://www.ncbi.nlm.nih.gov/pubmed/32337142
http://dx.doi.org/10.7759/cureus.7418
Descripción
Sumario:Cardiac tumors are extremely rare. Here, we report an unusual case of cardiac plasmacytoma that occurred 11 years after complete remission of the original multiple myeloma (MM). The tumor primarily manifested as a solitary extramedullary plasmacytoma (SEP) with extensive infiltration into the heart and large vessels. There was no evidence of systemic involvement. The relapsing tumor assumed a unique immunophenotype from CD138+/CD38+/CD56- to CD138-/CD38+/CD56-. The patient responded to chemotherapy consisting of carfilzomib, cyclophosphamide, and dexamethasone. This case highlights the importance of multimodal imaging evaluation and tissue diagnosis for accurately characterizing this rare disorder.

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