In view of the cases reported by Brudzinski and Morse, in which Brudzinski's neck sign was constantly absent in all diseases other than those of the nervous system, I believe that the report in my case will be of interest. Before proceeding, however, to the history of the case, I shall briefly describe these signs:
Brudzinski,1 while trying to test the rigidity of the neck in a child suffering from tuberculous meningitis, observed that flexion of the neck caused the legs to become flexed on the thighs, and the thighs on the abdomen. He followed this observation up in other cases and found this sign to be positive in 95 per cent, of children ill with tuberculous meningitis, and in 100 per cent, of those ill with either cerebrospinal, serous or pneumococcus meningitis. The sign was found to be absent only in the late comatose stage (état agonique) of
LOEB MJ. REPORT OF A CASE OF BRONCHOPNEUMONIA, SHOWING POSITIVE BRUDZINSKI NECK AND COLLATERAL SIGNS. JAMA. 1911;LVI(19):1382–1383. doi:10.1001/jama.1911.02560190010006
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