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Korean J Dermatol.  2026 Jul;64(4):158-163.

Xanthoma-Like AL Amyloidosis in a Patient with Smoldering Multiple Myeloma

Affiliations
  • 1Department of Dermatology and Division of Hematology-Oncology, Dong-A University College of Medicine, Busan, Korea
  • 2Department of Internal Medicine, Dong-A University College of Medicine, Busan, Korea

Abstract

Amyloidosis is a disorder characterized by the misfolding and aggregation of autologous fibrillar protein, leading to deposition in various organs. AL amyloidosis is associated with plasma cell dyscrasia. Here, we present a case of xanthoma-like AL amyloidosis in a 58-year-old female with smoldering multiple myeloma (SMM) that subsequently progressed to multiple myeloma. This case emphasizes the importance of vigilant monitoring in patients with SMM and skin lesions and highlights the potential progression to more severe hematological disorders.

Keyword

Immunoglobulin light-chain amyloidosis; Multiple myeloma; Smoldering multiple myeloma
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