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(1) The literature on chordomata is reviewed. (2) A case of sacro-coccygeal chordoma is reported. (3) The radiological appearance of the reported cases has been studied and these have been tabulated. (4) It is suggested that soft tissue films be taken in all vertebral cases with slight bony changes as this appears to be one of the more important diagnostic features.
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Howard Halper (1949) studied this question.
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