Interstitial Pneumonia Complicated by Sjögren's Syndrome, Hashimoto's Disease, Rheumatoid Arthritis and Primary Biliary Cirrhosis

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A 66-year-old woman diagnosed as having Hashimoto's disease and rheumatoid arthritis manifested interstitial pneumonia. We diagnosed Sjögren's syndrome and primary biliary cirrhosis as complications in this case. Steroid therapy was relatively effective for the interstitial pneumonia which was in an active state; however, during tapering of the steroid, there was a relapse and also severe dry throat. Cyclophosphamide was added and was effective in the prevention of recurrence. Even after discontinuation of steroid therapy, her general condition is stabilized. It is very important to carefully investigate other organ involvement as a prognostic factor in cases in which there are multiple autoimmune diseases.
(Internal Medicine 39: 970-975, 2000)