Sclerosis of the proximal phalanx of the thumb

• Increased bone density in the innermost bone of the thumb

• has_part some (
      increased amount and
      inheres in some (
          sclerosis and
          occurs in some proximal phalanx of manual digit 1) and
      has modifier some abnormal)

• Sclerosis of middle finger phalanx
• Sclerosis of proximal finger phalanx
• Sclerosis of thumb phalanx