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					Originally Posted by BamaFan121s  Of course those areas are not affected...the condition is one that is unique to the "blue born" dogs.     The darker steel blues to not have the problem because they are not "blue born" dogs...I think maybe you are confusing "blue borns" and the steel blue standard coat--they are not one and the same.  Clearly the white and tan points would not be an "affected" area.  In the quote you provided, the "pie-bald" dogs they are referring to are not even Yorkies...they are OTHER breeds. | 
 
  They do not mention blue born yorkies in this artical. They mention yorkies and state that the tan area is not affected. I have actually seen this on a standard color yorkie before but did not know that it was a genetic problem.