[Dislocation of the hip during the first year. Requirements for prevention].
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Biomedical subjects
Publications and source records attributed to J G Pous.
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The possible association of spinal dysraphia with scoliotic malformations was studied in 82 children. Scoliotic malformations are not always the result of dysraphic malformations (diastematomyelia, hydromyelia, intrathecal lipoma, medullary cone ectopia). Recognition of dysraphic scoliotic malformations from among other types of scoliotic malformations can be accomplished before myelography by detecting vertebral malformations on standard films and, if necessary, by computed tomography. Segmental vertebral malformations, affecting vertebral bodies only, do not appear to arise from malformations of nerves. On the contrary, however, dysraphic lesions are always associated with vertebral neural malformations. Of currently employed techniques, only myelography with metrizamide, followed by computed tomography, gives the maximum amount of data concerning the lesions. Even the association of these two techniques does not demonstrate the presence of certain intrathecal fibrous lesions, due to lack of resolution.
This is a case report of a malignant pheochromocytoma in a 10 years old boy with attacks of abdominal pains, diarrhea, visual difficulties and hypertension. No familial history was noted. At that time, a large functionally active and extraadrenal tumor was surgically removed just above the diaphragm. 3 years later, a retroperitoneal active recurrence required a 2nd operation. Then, a vertebral invading obliged to resect almost the whole T 12 and to stabilise the rachis with a double osteosynthesis, by a posterior and anterior approach. Although this may represent compression and invasion of the bone rather than a true metastasis, the authors think that the clinical course demonstrates malignancy. They emphasize the fact that the acceptance of strict criteria should help to overcome much of the confusion regarding the diagnosis of a malignant pheochromocytoma. It is generally accepted that such a diagnosis cannot be made in the absence of metastases, irrespective of the histologic picture. The technical problems of peri-neural surgery are also discussed.
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