The escape of cerebrospinal fluid from the nose, usually referred to as cerebrospinal rhinorrhea, may be consequent to trauma or new growth, or it may be spontaneous. Its occurrence after a fracture of the skull requires no discussion, for under such circumstances it is frequently possible to demonstrate the opening through which the cerebrospinal fluid leaves the skull. When the cause is new growth, it may or may not be possible to demonstrate both the mechanism and the pathway. Thus, in a recent publication entitled "Rhinorrhea and Neoplasms of the Central Nervous System," Britt1 stated that he was unable to demonstrate how the fluid escaped from the nose in one instance. In another it was suggested that a midline tumor of the cerebellum had produced internal hydrocephalus and that the increased pressure had resulted in erosion of the lamina cribrosa. Britt noted that tumors situated in the region of the
BALLON DH, BALLON HC. CEREBROSPINAL RHINORRHEA. Arch Otolaryngol. 1937;25(1):57–62. doi:10.1001/archotol.1937.00650010065007
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