Right to left-lateral radiograph cranial aspect of the thoracic vertebral column. A quite well-defined radiolucent lesion at the level of the base of the spinous process (SP) of the 2nd thoracic vertebra (T2) is visible (arrows). Note the absent opacity originating from the dorsal lamina of T2 and of the facet joints cranial to the lesion. The base of the spinous process of T1 and the area dorsal to the lesion appear diffusely sclerotic