Diseases of the nervous system : a text-book of neurology and psychiatry . Fig. 253.—Gumma of brain. Rarer cases of cranial bone caries of the base (sphenoid) compli-cated often by caries of the upper vertebrae, are also known. Petrenhas studied these in detail, and has shown the value of the a:-rays intheir diagnosis. 2. Syphilitic Meningitis of the Base.—This is the most commonform of cerebral syphilis. Its most frequent site, in the beginning, isin and about the interpeduncular space, thus almost invariablyinvolving the optic chiasm. From here it tends to spread in all direc-tions, pressing
Diseases of the nervous system : a text-book of neurology and psychiatry . Fig. 253.—Gumma of brain. Rarer cases of cranial bone caries of the base (sphenoid) compli-cated often by caries of the upper vertebrae, are also known. Petrenhas studied these in detail, and has shown the value of the a:-rays intheir diagnosis. 2. Syphilitic Meningitis of the Base.—This is the most commonform of cerebral syphilis. Its most frequent site, in the beginning, isin and about the interpeduncular space, thus almost invariablyinvolving the optic chiasm. From here it tends to spread in all direc-tions, pressing into the sulci, thickening the meninges, by infiltration,by arterial disease, or by gummatous growth. Usually all types ofpathological alteration are found. The gummatous masses notinfrequently invade the brain structures as well, grow about the emerg-ing or entering cranial nerves, and even involve the bones of the skull, SYPHILITIC MENINGITIS OF THE BASE 525 and the upper cervical vertebrae. Thus, spinal meningeal infiltra-tions almost invariably accompany this b
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Keywords: ., book, bookcentury1900, bookdecade1910, booksubjectmentaldisorders
