This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Which of the following is not a feature of dequervan's disease? 
Select and explain. 
A. Autoimmune etiology, B. Elevated levels of ESR, C. Spontaneous regression, D. Painful enlargement of thyroid
A: Autoimmune etiology
Answer: A: Autoimmune etiology 
Explanation: De quervains thyroiditis is not of autoimmune etiology. It occurs several weeks following a viral illness with a prodrome of generalized myalgia, pharyngitis, low grade fever and fatigue. Viruses involved in causing this includes mumps, coxsackie, influenza, adeno virus and echo virus. Ref: Ultrasound of the Thyroid and Parathyroid Glands By Robe A. Sofferman, Page 86; Acute Endocrinology: From Cause to Consequence By Greet Van Den Berghe, Page 10