Let's say a non-Jewish male has had his genitalia removed through some accident or medical procedure (e.g. for the purpose of gender transition).
If that person later decides to convert. How is bris milah performed? Does he need it at all?
In the case of convert has already had a milah done prior, we perform Hatafas Dam Bris, wherein the Rabbi draws blood from the milah. However, in this case, there is no genitalia present from which to draw blood. How is this case to be dealt with?
Does the fact that the genitalia are no longer there distinguish this case from the question of a convert who can't have a circumcision for medical reasons?
Does it make a difference whether the removal was accidental or volitional?