Which of the following is NOT a clinical manifestation of Cohen syndrome?

Cohen syndrome is a genetic disorder characterized by a range of clinical features. Among the common manifestations are hypotonicity (reduced muscle tone), narrow limbs, and an open-mouth appearance due to facial features typical of the syndrome.

Tall stature is not a characteristic associated with Cohen syndrome; in fact, individuals with this condition often have short stature relative to their peers, particularly during childhood. The other features listed, such as narrow limbs and hypotonicity, align with the typical presentation seen in Cohen syndrome. Therefore, tall stature stands out as the one that does not belong in the context of this specific disorder's clinical manifestations.