Localized amyloid light-chain amyloidosis and extramedullary plasmacytoma of the mitral valve

Aurélien Roumy; Laurence De Leval; Lars Niclauss; Stephan C. Schaefer; Paul Kurtin; Ahmet Dogan; Ludwig K. Von Segesser; Patrick Ruchat

doi:10.1016/j.athoracsur.2012.08.085

Localized amyloid light-chain amyloidosis and extramedullary plasmacytoma of the mitral valve

Aurélien Roumy, Laurence De Leval, Lars Niclauss, Stephan C. Schaefer, Paul Kurtin, Ahmet Dogan, Ludwig K. Von Segesser, Patrick Ruchat

Laboratory Medicine and Pathology

Research output: Contribution to journal › Article › peer-review

Abstract

An unusual case of localized amyloid light-chain (AL) amyloidosis and extramedullary plasmacytoma of the mitral valve is described. The worsening of a mitral regurgitation led to investigations and surgery. The valve presented marked distortion and thickening by type AL amyloid associated with a monotypic CD138+ immunoglobulin lambda plasma cell proliferation. Systemic staging showed a normal bone marrow and no evidence of amyloid deposition in other localizations. The patient's outcome after mitral valve replacement was excellent. To our knowledge, this is the first description of a localized AL amyloidosis as well as of a primary extramedullary plasmacytoma of the mitral valve.

Original language	English (US)
Pages (from-to)	1782-1784
Number of pages	3
Journal	Annals of Thoracic Surgery
Volume	95
Issue number	5
DOIs	https://doi.org/10.1016/j.athoracsur.2012.08.085
State	Published - May 2013

ASJC Scopus subject areas

Surgery
Pulmonary and Respiratory Medicine
Cardiology and Cardiovascular Medicine

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10.1016/j.athoracsur.2012.08.085

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Localized amyloid light-chain amyloidosis and extramedullary plasmacytoma of the mitral valve. / Roumy, Aurélien; De Leval, Laurence; Niclauss, Lars; Schaefer, Stephan C.; Kurtin, Paul; Dogan, Ahmet; Von Segesser, Ludwig K.; Ruchat, Patrick.

In: Annals of Thoracic Surgery, Vol. 95, No. 5, 05.2013, p. 1782-1784.

Research output: Contribution to journal › Article › peer-review

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abstract = "An unusual case of localized amyloid light-chain (AL) amyloidosis and extramedullary plasmacytoma of the mitral valve is described. The worsening of a mitral regurgitation led to investigations and surgery. The valve presented marked distortion and thickening by type AL amyloid associated with a monotypic CD138+ immunoglobulin lambda plasma cell proliferation. Systemic staging showed a normal bone marrow and no evidence of amyloid deposition in other localizations. The patient's outcome after mitral valve replacement was excellent. To our knowledge, this is the first description of a localized AL amyloidosis as well as of a primary extramedullary plasmacytoma of the mitral valve.",

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