TY - JOUR T1 - Response to: ‘Renal biopsies should be performed whenever treatment strategies depend on renal involvement’ by Chemouny <em>et al</em> JF - Annals of the Rheumatic Diseases JO - Ann Rheum Dis SP - e28 LP - e28 DO - 10.1136/annrheumdis-2016-210962 VL - 76 IS - 8 AU - M Yates AU - D R Jayne AU - C Mukhtyar Y1 - 2017/08/01 UR - http://ard.bmj.com/content/76/8/e28.abstract N2 - We thank Chemouny et al for their letter and concur with their conclusions.1 As we state2: “A positive biopsy for ANCA associated vasculitis (AAV) is helpful when considering an initial diagnosis or recurrent disease”. In our view, renal biopsy is important to establish diagnosis … ER -