Pinealectomy in chickens consistently produces scoliosis with lordosis, ertebral rotations, and rib humps, which hae anatomic characteristics similar to those of human idiopathic scoliosis.

实体切除术后的小鸡，经常可以导致侧凸的发生，种侧凸同时伴有脊柱前凸，锥体旋转，肋骨隆起，的特发性脊柱侧凸特征很相似。