Sofosbuvir/Ribavirin therapy for patients experiencing failure of ombitasvir/paritaprevir/ritonavir + ribavirin therapy: Two cases report and review of literature

Figure 1 Ultrasonography findings of the right ulnar intercarpal joints in patient 2. A: Power Doppler imaging. There were clear synovial blood flow signals (arrows) with localization of the synovial thickening; B: B-mode imaging. Synovial thickening was observed as a low echoic lesion (surrounded by arrowheads).