Doctors must see lots of surprising things, but this one is really bizarre.
During an operation on a man at St. Paul’s Hospital in Vancouver, “multiple attempts to insert a radial arterial catheter yielded dark greenish-black blood, which was immediately sent away for analysis” since, unlike Spock, this man was not known to be Vulcan.
The diagnosis, reported in The Lancet: sulfhaemoglobinaemia. Fortunately it’s as rare as it is unpronounceable.












