case_images: PMC6829628_01
case_images: Methotrexate is injected into the left third PIP joint (A) and the joint is
  electroporated using 2 parallel stainless-steel electrodes (B). The Grade 2
  power Doppler value of the PIP joint at baseline improves to Grade 1 at
  12 weeks. However, this has increased at 26 weeks, based on the longitudinal
  images (C to E). The grey-scale readings do not change, and the grade is 3
  after 26 weeks.
case_images: 10.1177_1179544119886303-fig3.jpg
case_images: PMC6829628_01_10.1177_1179544119886303-fig3.jpg
case_images: fig3-1179544119886303
case_images: Case 1 is outlined in Table 1 and Figure 3.