Meckel's diverticulum.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008467:Meckel Diverticulum / Q000150:complications / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D012737:Sex Factors