“…None the less, there are a number of anecdotal reports that visceral structures may become hyperalgesic, particularly in inflammatory states. Kinsella [43] reported that direct mechanical stimulation of the inflamed, but not the healthy, appendix caused pain. Other reports exist for the ureter, kidney, bladder, ovary, stomach and oesophagus [34,37,40,64,94,80,112].…”