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A 18-year-old male patient was referred to our rheumatology clinic with pain and deformity in his hands. He reported minimal dysfunction, weakness, and sensory symptoms in addition to progressive pain and deformity in his hands for two years. On his physical examination, systemic evaluation was unremarkable and other joints were normal, as well as his feet. He presented hand deformities resembling rheumatoid arthritis (RA). Reversible ulnar deviation, metacarpophalangeal (MCP) joint f lexion, proximal interphalangeal (PIP) joint extension, and distal interphalangeal (DIP) joint f lexion (swan neck deformity) were observed in both hands. Adduction and opposition deformities were present in both thumbs, and all deformities in the right hand were more pronounced (Figures 1, 2). There was no swelling, redness, or tenderness in his hands. Complete blood analysis and routine biochemical analyses were unremarkable. Rheumatoid factor, anti-citrullinated peptide (anti-CCP) and antinuclear antibodies (ANA) were negative. Radiographic findings of the hands were also normal. Based on his neurological symptoms, genetic tests were performed. He was diagnosed with Charcot-Marie-Tooth disease type 1A (CMT1A), depending on the duplication of the gene for peripheral nerve myelin protein 22 (PMP22) and clinical signs. Hand involvement in Charcot-Marie-Tooth disease type 1A may resemble rheumatoid arthritis