Friday, February 06, 2015
by Mark Beckwith
Here's a very short clip from the 2013 Expert Meeting where Dr. Sven Krengel, who has risen to the top of the field especially when it comes to a comprehensive knowledge of the literature and applying it to the world of congenital melanocytic nevi (CMN), debunks one of the many myths of CMN, that often quoted number "one in 500,000."
Dr. Krengel has authored the new consensus-based classification scheme for CMN which we hope will catch on and that all doctors will start using, so that they can all describe CMN the same way for the first time.
In this clip, he challenges everyone in attendance at the Expert Meeting to "officially forget this number." Or, as Dr. Heather Etchevers (who organized and hosted the Expert Meeting) explained recently:
"The numbers are only ever approximations ... (a) it depends on what size we're discussing, and (b) we think that large and giant CMN are more common than initially estimated because those early figures were often based on who showed up of their own free will with their babies in the doctors' offices ... Just like there was an initially reported sex bias because parents of little baby girls were more likely to seek treatment than those of little boys."
There are a lot of factors at play.