What is a feature of "Rocker Bottom" feet associated with trisomy 13?

Rocker bottom feet, a common feature associated with trisomy 13 (Patau syndrome), exhibit an abnormal foot shape characterized by a convex appearance on the bottom of the foot. This structural anomaly results from an abnormal development of the bones and tissues in the foot, leading to an exaggerated arch and a lack of support when standing. These characteristics give the foot a distinctive "rocker" appearance, which is a key indicator in diagnosing associated conditions like trisomy 13.

This foot deformity is significant because it often coexists with other congenital abnormalities seen in individuals with trisomy 13, helping healthcare professionals identify the condition early. Recognizing rocker bottom feet can be crucial in the multidisciplinary care provided to infants and families affected by this genetic disorder.