Secondary Cutaneous Nodular AA Amyloidosis in a Patient With Primary Sjögren Syndrome and Celiac Disease

Abstract

In Brief We describe a 62-year-old female with primary Sjögren syndrome and myopathy, severe osteoporosis, and vertebral fractures that were attributed to celiac disease. A year after the diagnosis, she developed a skin nodule on the extensor surface of her right elbow, which was due to an amyloid deposit of AA type. Amyloidosis, although relatively common in some chronic inflammatory diseases, has been uncommon in Sjögren syndrome or celiac disease. Visceral amyloid was not found in this patient. Sjögren syndrome and celiac disease occur together more often than expected by chance. This patient developed a subcutaneous nodule that turned out to be due to localized amyloidosis.