Deep vein thrombosis â Perhaps the most important disease not to miss when dealing with legs that have suddenly become swollen. Years after the deep vein thrombosis has subsided and forgotten, post-phlebitic changes can still be a cause for a swollen leg.
1 A patent foramen ovale (PFO) is an opening covered by a flap of tissue in the wall of the heart that separates the two upper chambers or atria. 2  PFOs are very common, more than 20% of all humans have one.3  Estimates range from 20-30% depending on the decade of life. A patent foramen ovale (PFO) is an opening covered by a flap of tissue in the wall of the heart that separates the two upper chambers or atria. 2  PFOs are very common, more than 20% of all humans have one. 3  Estimates range from 20-30% depending on the decade of life.
NFO. An aviator who is an officer but not a pilot; pilots say it stands for âNo Future Occupationâ; also called the âNon-Flying Objectâ and âwalk-nâ-talkinâ navbag.â Sometimes referred to as DAP for âDouble-Anchor Pukeâ (a reference to the crossed anchors on the NFO wings).