Which syndrome is characterized by skeletal overgrowth in conjunction with combined malformations?

The condition characterized by skeletal overgrowth in conjunction with combined malformations is Klippel Trenaunay syndrome. This syndrome is defined by a triad of symptoms that includes capillary malformations, venous malformations, and lymphatic malformations, leading to the hallmark feature of limb overgrowth. Patients often present with one limb being larger than the other, alongside additional malformations such as varicose veins and soft tissue hypertrophy.

Klippel Trenaunay syndrome can impact the skeletal system, leading to abnormalities in bone growth, which is a direct illustration of skeletal overgrowth accompanying other malformations. This unique combination of features is what sets Klippel Trenaunay syndrome apart from other syndromes listed, making it the correct answer in this context.