A boy with 47,X,del(X)(p11leads to q13:q21leads to q24),del(Y)(q11):reexamination of a case previously described as 47,XX,?Yq-.

Before the introduction of the banding technique we studied a boy presented as a case of 47, XX,?Yq-(Christensen and Nielsen, 1971). The case has been restudied with the use of different types of banding, which revealed the following karyotype 47, X,del(X)(p11 leads to q13::q21leads toq24), del(Y)(q11).