Which of the following is the etiological agent for the given case below:

Ans. (A) Congenital(Ref: Apley's System of orthopedics and Fracture 9th Ed; Page No- 465-66)Presence of a hemivertebra- Congenital Scoliosis.Neurofibromatosis: It is associated with scoliosis. The scoliotic curve is typically 'short and sharp and is associated with skin lesions.Idiopathic: It usually resolves spontaneously, measurement of the rib-vertebra angles at the curve apex in the early stages of the deformity is a good prognostic factor.Neuromuscular: The typically paralytic curve is long, convex towards the side with weaker muscles (spinal, abdominal, or intercostal), and at first is mobile. An X-ray obtained with traction would show the extent to which the deformity is correctable.