The occurrence of a dry spinal subarachnoid space in tuberculous meningitis, due to a marked thickening of the spinal meninges from a diffuse infiltration with tubercles is a condition of great rarity.
In a study of 105 cases of tuberculous meningitis, recently reported by Meyers,1 no mention is made of failure to obtain cerebrospinal fluid on lumbar puncture. The gross pathologic findings have been described in thirty-six cases of tuberculous meningitis by Espinet,2 in nine cases by Rhein,3 in thirty by Lutel4 and Percheron,5 without, however, any mention of such a marked diffuse infiltration of the spinal meninges with tubercles. Lesage,6 Willerval,7 Schoull,8 Altman,9 Neal,10 and others, who have made special studies of the disease, do not mention this complication, nor do various standard textbooks make any reference to the condition. Leitch11 has reported a case of tuberculous meningitis