Annals of NeurologyVolume 89, Issue 3 p. 627-629 Letters/Replies Migraine and Cryptogenic Ischemic Stroke Valentina Mazzoleni MD, Department Clinical Experimental Sciences, Neurological Clinic, University Brescia, ItalySearch for more papers by this authorMario Grassi PhD, the Nervous System Behavior Unit Medical Genomic Statistics, Pavia, authorCorrado Lodigiani Thrombosis Hemorrhagic Diseases...

First, histology is described as follows: ‘‘...diffuse intraalveolar exudate of granular, fibrinous material...’’. Organising pneumonia pattern, the histological hallmark of cryptogenic organising pneumonia, is characterised by intraalveolar buds of granulation tissue. Recently, a new anatomoclinical entity has been reported by BEASLEY et al. [2] as ‘‘acute fibrinous and organizing pneumonia (A...