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. Author manuscript; available in PMC: 2022 Mar 1.
Published in final edited form as: Arthritis Rheumatol. 2021 Jan 29;73(3):440–447. doi: 10.1002/art.41520

Figure 1 – A.

Figure 1 – A

, Example of a high-risk erosive hand osteoarthritis pedigree identified in the Utah Population Database. Circles = females, squares = males, arrow = family founder, slashes = deceased. White circles/squares = affection status unknown. Black circles/squares = individuals affected with erosive hand osteoarthritis. B, C, D indicate individuals with hand radiographs. B-D, Hand radiographs of individuals (B-D) in the high-risk EOA pedigree (A). Asterisks indicate central subchondral erosions and arrowheads indicate a ‘gull-wing’ appearance of the joint.