There are many medical reasons that can cause black stools that are tarry with a foul smell, but sometimes dark stools are caused by eating certain foods or taking iron supplements. However, black stools can also be a result of bleeding, and the darker color indicates that the blood could be coming from a point in the upper gastrointestinal tract.
Gertrude Levandowski survived a 96-hour procedure at a Chicago hospital to remove a giant ovarian cyst; the longest surgery. The second longest surgery ever was 40 hours long and that was to remove 6 limbs from a 8 limed baby in India. But the most common longest surgery is spinal cord surgery it is a 14 hour surgery.
Longest surviving single lung transplant patient. The Longest surviving single lung transplant patient is Veronica Dwyer (Ireland, b. 22 March 1941) who has lived 27 years and 112 days since her transplant on 19 May 1988 in Harefield, Middlesex, UK, as verified on 8 September 2015. Veronica was originally awarded this record on 2 April 2013.