The "Hutchinson twins".
D002648:Child; D004200:Diseases in Twins; D005260:Female; D049672:History, 19th Century; D006801:Humans; D008046:Lip / Q000473:pathology; D009061:Mouth Mucosa / Q000473:pathology; D010580:Peutz-Jeghers Syndrome / Q000266:history* / Q000473:pathology; D010859:Pigmentation Disorders / Q000266:history* / Q000473:pathology