[Incidence and diagnosis of lumbosacral pouch diverticula].

The myelograms of ninety-nine patients with an ischias symptomatology were analyzed. In fifteen of the subjects there were found lumbosacral radicular pouch diverticula which, after elimination of other nosogenic factors, were considered chiefly responsible for the clinical and neurological pictures observed in six cases. The pathological and anatomical, clinical and radiographic results described by the authors represent a disease picture which is little known and, hence, not generally included in the differential diagnosis of ischialgia, but which has been found to yield to neurosurgical treatment in selected cases.