A radiographic study of porotic hyperostosis

Abstract

Skull lesions known as porotic hyperostosis have been of interest to researchers since the mid-19th century. The etiology of porotic hyperostosis has long been a matter for speculation yet there has never been complete acceptance or substantiation of any one of the many theories proposed. Today the most widely accepted theory suggests that anemias of either acquired or genetic origin are responsible for porotic hyperostosis. The present study tests this hypothesis using criteria which were chosen after the examination of clinical radiographs of patients with various types of anemia. These criteria are: the presence of "hair-on-end" trabeculation, outer table thinning, texture changes, diploic thickening, orbital roof thickening, orbital rim changes, and the underdevelopment of frontal sinuses. A comparison of these criteria from the clinical X-rays with X-rays of skulls with porotic hyperostosis provides a more rigorous, repeatable, and standardized method upon which to base a diagnosis. This approach enables radiography to provide the necessary link between the clinical and anthropological with which to investigate the origin of porotic hyperostosis.

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