Abnormal foot morphology Medial rotation of the medial malleolus Hindfoot valgus (posterior part of the foot turns outward) in combination with forefoot abduction (front part of the foot (the forefoot) is angled outwards away from the midline of the body, relative to the hindfoot) and lowering of the midfoot. In the context of Marfan syndrome, this anomaly is sometimes referred to as hindfoot deformity, but in general, the term hindfoot deformity is also used to describe other findings. HP:0008132 UMLS:C3805726