Dr. Vilanilam welcomes Dr. Samantha L. Pisani Petrucci for a discussion of her paper Assessing the Diagnostic Value of Brain White Matter Hyperintensities and Clinical Symptoms in Predicting the Detection of CSF-Venous Fistula in Patients with Suspected Spontaneous Intracranial Hypotension, published in the May issue of AJNR. (21:54)