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How good at neurology are you? — ANSWERS

1. Raeder’s paratrigeminal syndrome. In 1924 JG Raeder described five patients in whom he postulated lesions in the middle cranial fossa, medial to the trigeminal ganglion: "lesions could be localised to a limited space, the situation of which justifies the designation paratrigeminal paralysis of the sympathetic". As well as an oculosympathetic palsy, some of Raeder’s cases also had other cranial nerve involvement, with diverse pathology. Although careful scrutiny of the terminal carotid, petrous apex, cavernous sinus, and retro-orbital region is needed in such cases, in a number of patients the presentation "feels"—and is—benign.
   Further reading
   Raeder JG. "Paratrigeminal" paralysis of oculopupillary sympathetic. Brain 1924;47:149–58.[Free Full Text]
   
2. Statements A and D are false. Arsenic toxicity is suggested by Mees’ lines in a setting of sensory polyneuropathy and gastrointestinal symptoms. This was confirmed by high levels of arsenic in pubic hair and fingernails. Mees described three patients in 1919 with . . . [Full text of this article]