Fig. 3From: Photoacoustic and high-frequency ultrasound imaging of systemic sclerosis patientsHFUS image of the skin thickening of a healthy volunteer and a SSc patient between the nailfold and the distal interphalangeal joint of the third finger. DIP joint, distal interphalangeal joint. High-frequency ultrasound image of the finger with a notation indicating different parts of the finger. The image a is for healthy volunteer and image b is SSc patientBack to article page