Is pku and huntington disease the same disease entity?

Pku vs huntingtons: They are 2 different disorders, each with its own neurochemical abnormality.

Some comments: Pku is a problem with children and this needs early diagnosis to prevent profound complications. Huntington's chorea is an autosomal dominant disorder occurring later in life, and is relatively rare, but genetic counseling might be valuable. Neither disorder has any relationship to the other.