What kind of physical findings characterize Marfanoid habitus?

Marfanoid habitus is characterized primarily by features such as long limbs and hyperlaxity of joints. This trait is often seen in conditions associated with connective tissue abnormalities, like Marfan syndrome or related disorders. Individuals with marfanoid traits typically exhibit a tall stature with elongated fingers and toes, a phenomenon known as arachnodactyly, along with increased joint flexibility, or hyperlaxity. These physical characteristics are crucial for the identification of connective tissue disorders.

Although heart murmurs can be associated with Marfan syndrome due to cardiac involvement like aortic regurgitation, they do not specifically characterize marfanoid habitus itself. Similarly, facial dysmorphism can occur in many genetic syndromes independent of a marfanoid phenotype. Short stature is not a characteristic of marfanoid habitus; in fact, tall stature is one of the hallmark findings. Therefore, focusing on long limbs and joint hyperlaxity directly underscores the true essence of marfanoid habitus.