Concepedia

Abstract

t last, the second edition of Bone Dysplasias has been published. The classic first edition by J. Spranger, L. Langer, and H. Wiedeman has been ably and significantly updated by J. Spranger and two additional authors, P. Brill and A. Poznanski, both pediatric radiologists. This edition will fill the gap left in departmental libraries when the first edition went out of print. The new edition has maintained the same format: concise outlines of clinical and radiologic features with further information on genetics and molecular pathology when known. Significant updates have been made in the differential diagnoses and references. The sizeable increase in the number of radiographs and photographs is commendable, as is their clarity and quality. Image quality and number of radiographs have been a problem for authors of other textbooks on skeletal dysplasias. The layout of this edition is similar to that of the first edition, with clinical information preceding the radiographs. Although this format may reflect the publisher’s preference, it would be helpful to have had the text and radiographs on facing pages when possible. Pediatric radiologists, geneticists, orthopedists, and pediatricians will find this book easy to use because its style is similar to that of Taybi’s Radiology of Syndromes , Metabolic Disorders, and Skeletal Dysplasias (Mosby, 1996). This second edition maintains its original organization in dividing bone dysplasias into subgroups or families based on similar genetic or phenotypic conditions. The authors use as an example two conditions that have sulfate transport disorders. The first, achondrogenesis IB, is included in the lethal chondrodysplasias; and the second, diastrophic dysplasia, is listed with the major spine disorders. Other subgroups include predominant metaphyseal or epiphyseal disorders, increased or decreased bone density, and major spine involvement. This classification system will enable clinicians to use the presenting feature or anomaly as a guide to diagnosing the