title: A navel stone mimicking a urachal sinus.
authors.affiliation: Shonan Kamakura General Hospital, Kamakura City, Kanagawa, Japan.
authors.forename: Hidehiko
authors.initials: H
authors.lastname: Nakano
authors.forename: Takashi
authors.initials: T
authors.lastname: Watari
authors.forename: Yu
authors.initials: Y
authors.lastname: Suganami
authors.forename: Yasuharu
authors.initials: Y
authors.lastname: Tokuda
mesh_terms: D000369:Aged, 80 and over; D002137:Calculi / Q000175:diagnosis*; D005260:Female; D005547:Foreign Bodies / Q000175:diagnosis*; D006801:Humans; D014472:Umbilicus; D014497:Urachus / Q000002:abnormalities