구별하기 위해 배꼽 부위를 추출하여 KOH 또는 Wright 염색으로 염색하여 봉입체를 관찰하고 조직학적 검사를 통해 확인한다.
In order to distinguish, umbilication site can be extracted and stained with KOH or Wright stain to observe inclusion bodies and histological examination can be performed for confirmation.