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  • Title: Localized Cutaneous Nodular Amyloidosis: A Specific Cutaneous Manifestation of Sjögren's Syndrome.
    Author: Llamas-Molina JM, Velasco-Amador JP, De la Torre-Gomar FJ, Carrero-Castaño A, Ruiz-Villaverde R.
    Journal: Int J Mol Sci; 2023 Apr 17; 24(8):. PubMed ID: 37108553.
    Abstract:
    Primary localized cutaneous nodular amyloidosis (PLCNA) is a rare condition attributed to plasma cell proliferation and the deposition of immunoglobulin light chains in the skin without association with systemic amyloidosis or hematological dyscrasias. It is not uncommon for patients diagnosed with PLCNA to also suffer from other auto-immune connective tissue diseases, with Sjögren's syndrome (SjS) showing the strongest association. This article provides a literature review and descriptive analysis to better understand the unique relationship between these two entities. To date, 34 patients with PLCNA and SjS have been reported in a total of 26 articles. The co-existence of PLCNA and SjS has been reported, especially in female patients in their seventh decade of life with nodular lesions on the trunk and/or lower extremities. Acral and facial localization, which is a typical localization of PLCNA in the absence of SjS, seems to be much more unusual in patients with associated SjS.
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