Actually someone asked this exact thing on that question, but it wasn't addressed, perhaps because they provided no link/further details.
My wife just sent me a bulletin concerning mercury exposure from CFL bulbs. Aside from the inhalation/skin exposure issues typically raised (which are answered in the above linked question quite well), there were pictures of a foot injury supposedly incurred from stepping on a broken CFL bulb.
Here is the scenario: You are dispatched to The Smith residence for a laceration to the foot. Routine run huh? Nope. What you were not told is that Mr. Smith uses CFL lamps in his home. One of those lamps burned-out, and Mr. Smith did not wait for the lamp to cool down before he stood on a chair and removed it. Because the lamp was hot to the touch, Mr. Smith dropped it. As the lamp hit the floor, it exploded. As Mr. Smith descended from the chair he stepped, barefooted, into the broken glass and exposed mercury. Here is what Mr. Smith’s foot looked like during his 2-week stay in ICU: [graphic pictures follow]
At one stage it was feared that his foot would need to be amputated. Currently his foot is connected to a vacuum pump to remove continuously dead tissue. [another graphic picture]
I dig a bit of digging, but this appears not to have been answered definitively:
- Snopes has an article on this which states that the Salisbury Fire Dept. did author the newsletter, but subsequently was led to believe that the information they based it on was sent to them via a hoax. Snopes didn't find information related to mercury and such types of injuries, but couldn't definitively reject the idea, either.
- Hoax Slayer also wrote about the document/pictures and has the same stance. No evidence was found to support this type of injury, but it couldn't be denied, either.
Could a laceration from a CFL bulb and subsequent contamination with mercury create the necrosis-looking large gashes shown in the linked article?
P.S. The answer might end the same as Snopes or Hoax Slayer... I'm considering trying to answer this myself by searching for some specialists or institutions specializing in mercury exposure care. Someone else could feel free to do the same -- just one way that might help answer this definitively.
I also took one of the images and did a reverse Google image search hoping to find some instance of it on a medical case example (non-mercury related), but was unsuccessful. All the hits seem to be for the same types of CFL warning pieces.