Figure 1From: Trigeminal isolated sensory neuropathy (TISN) and FOSMN syndrome: despite a dissimilar disease course do they share common pathophysiological mechanisms? Light microscopy. Photomicrographs of semithin sections. left figure: normal supraorbital nerve from patient 0. Note the densely packed myelinated fibres. right figure: supraorbital nerve from Patient 5 showing rarefied large-size myelinated fibres, whereas some small myelinated fibres are preserved. Bar: 20 μm.Back to article page