This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immune system, Subject name: Medicine
All are true about Sjogren syndrome except 
Select and explain. 
A. Interstitial nephritis, B. Subcutaneous fibrosis, C. Lack of tear, D. Xerostomia
B: Subcutaneous fibrosis
Answer: B: Subcutaneous fibrosis 
Explanation: Ref - Davidsons 23e p1039