case_images: PMC7276560_01
case_images: (a and b) Clinical picture showing swollen proximal interphalangeal joints.
case_images: JOCR-10-86-g001.jpg
case_images: PMC7276560_01_JOCR-10-86-g001.jpg
case_images: F1
case_images: (a and b) X-ray showing swollen proximal interphalangeal joints, normal joint anatomy.
case_images: JOCR-10-86-g002.jpg
case_images: PMC7276560_01_JOCR-10-86-g002.jpg
case_images: F2