Many families first notice acropectorovertebral dysplasia in infancy because a baby’s hands look different, with short or missing fingers or thumbs and stiff or webbed joints that limit movement. As a child grows, doctors often recognize additional features on exam or X‑ray, such as unusually shaped shoulder blades or collarbones and vertebral changes that can affect posture or neck movement—these are common first signs of acropectorovertebral dysplasia. In some cases, the condition is first picked up before birth during an ultrasound that shows limb differences.