What is the histological finding in Scheuermann's disease according to studies by Aufdermaur, Ippolito and Ponseti, and Ascani et al?

1) In Scheuermann's disease, altered growth cartilage areas of the vertebral platforms are found, forming a mosaic alternating with normal areas.
2) The pathological alteration is found in the cartilaginous matrix, which has a decreased number of collagen fibers, which are thinner and have an increased content of proteoglycans.
3) The enchondral ossification is very altered. The bone is formed directly from the cartilage and not by depositing bone tissue on a calcified cartilaginous model.
4) The radiological appearance should be interpreted as a lack of construction rather than destruction of bone tissue.