Metastatic Multiple Myeloma to the Skin

Cutaneous involvement of multiple myeloma (MM) is uncommon, typically occurs in late stage disease, and is a poor prognostic indicator with an approximate eight month median survival. We present a 51-year-old man with relapsed lambda light chain MM who developed abrupt asymptomatic skin metastases....

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Bibliographic Details
Main Authors: Alex C. Holliday, Mohammed I. Khan, Sean E. Mazloom, Rahul N. Chavan, Douglas J. Grider
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Case Reports in Dermatological Medicine
Online Access:http://dx.doi.org/10.1155/2019/7930123
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Summary:Cutaneous involvement of multiple myeloma (MM) is uncommon, typically occurs in late stage disease, and is a poor prognostic indicator with an approximate eight month median survival. We present a 51-year-old man with relapsed lambda light chain MM who developed abrupt asymptomatic skin metastases. Biopsy revealed a dermis replete of atypical plasma cells, positive for CD138 and CD45. In situ hybridization confirmed lambda light chain restriction. Despite rescue antimyeloma therapy with the anti-CD38 drug daratumumab, he rapidly declined clinically and succumbed to the disease four weeks after presentation. A standard treatment approach for cutaneous MM does not currently exist; however, various techniques to detect cytogenetic abnormalities are emerging and will provide additional prognostic value and direct individualized therapy.
ISSN:2090-6463
2090-6471