A similar but less marked type of kyphosis may follow upon compression fracture of the spine-in the condition known as traumatic spondylitis; and as a result of other lesions, such as osteomalacia, or malignant disease, in which the bodies undergo softening and yield, so that the spinous processes project posteriorly.
"Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition."
Alexander Miles Alexis Thomson
On the other hand, much more serious conditions, as Pott's disease, abscess of the liver, or some form of spondylitis, may be suspected.
"Psychotherapy"
James J. Walsh