You searched for: “arachnodactyly
1. A skeletal disorder where the patient has unusually long, thin bones; especially, noticeable in the fingers and toes.
2. Extreme length and slenderness of the fingers or toes.
3. The long thin fingers and toes seen in certain dysplasias; such as, the Marfan syndrome.

Marfan syndrome is a heritable condition that affects the connective tissue.

The primary purpose of connective tissue is to hold the body together and to provide a framework for growth and development. In Marfan syndrome, the connective tissue is defective and does not act as it should.

Because connective tissue is found throughout the body, Marfan syndrome can affect many body systems, including the skeleton, eyes, heart and blood vessels, nervous system, skin, fingers and toes, and the lungs.