منابع مشابه
Spontaneous fractures of both first ribs.
This fracture has been variously reported as a developmental anomaly, a synchondrosis or a pseudarthrosis, but most authors now regard it as a true fracture. As far as can be ascertained, only 263 cases of isolated fracture of the first rib have been recorded in the literature and only seventeen of these were bilateral. The majority of the recorded cases have been found incidentally during rout...
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The object of this paper on tumors of the rib is three-fold. First, to point out that many of them are not metastatic, secondly, that primary malignant tumors are not more frequent than benign tumors, and thirdly, to present some exemplary conditions one should consider in the differential diagnosis of rib tumors. The present review covers the contributions on primary rib tumors through 1953 an...
متن کاملSclerotomal origin of the ribs.
The somites of vertebrate embryos give rise to sclerotomes and dermomyotomes. The sclerotomes form the axial skeleton, whereas the dermomyotomes give rise to all trunk muscles and the dermis of the back. The ribs were thought to be ventral processes of the axial skeleton and therefore to be derived from the sclerotomes; however, recently a dermomyotomal origin of the distal rib (the costal shaf...
متن کاملEvaluation of Neurovascular Complication of Cervical Ribs
Introduction: Cervical rib is relatively uncommon congenital abnormality that originates from the seventh cervical vertebrae and rarely from the sixth vertebrae. The purpose of this paper is to consider that this abnormal condition is an important cause of neurovascular compression at the thoracic outlet. Methods: In this study all patients who were referred to radiology departm...
متن کاملScheduling Social Golfers Locally
The scheduling of social golfers has attracted significant attention in recent years because of its highly symmetrical and combinatorial nature. In particular, it has become one of the standard benchmarks for symmetry breaking in constraint programming. This paper presents a very effective, local search, algorithm for scheduling social golfers. The algorithm find the first known solutions to 11...
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ژورنال
عنوان ژورنال: American Journal of Roentgenology
سال: 1974
ISSN: 0361-803X,1546-3141
DOI: 10.2214/ajr.120.4.901