the location of the underlying internal malignancy appears to be closely related to the location of the extramammary paget 's disease -- i.e. , a perianal location is associated with adenocarcinoma of the digestive system , a penile-scrotal-groin location with genitourinary malignancy , etc .
C0030186
extramammary paget 's disease
C0001418
adenocarcinoma