title: Frenum-like oral synechiae of the lip and vestibule.
abstract: Two cases where aberrant tissue was attached to the lower lip mimicking the inferior labial frenum were reported. The frenum-like tissue extended from the gingival margin between the lower left deciduous central and lateral incisors in case 1 and between the lower right deciduous central and lateral incisors in case 2, to the dry lower lip. Histologically, the resected specimen was regarded as normal oral mucosa covered with stratified squamous epithelium, without a clear amniotic band. The frenum-like tissue of the lower lip found in both our patients was diagnosed as a category of oral synechiae, of unknown origin.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Yamaguchi University Graduate School of Medicine, Minami-kogushi 1-1-1, Ube City, Yamaguchi, 755-8505, Japan. kmishima@yamaguchi-u.ac.jp.
authors.forename: Katsuaki
authors.initials: K
authors.lastname: Mishima
authors.affiliation: Department of Oral and Maxillofacial Surgery, Yamaguchi University Graduate School of Medicine, Minami-kogushi 1-1-1, Ube City, Yamaguchi, 755-8505, Japan.
authors.forename: Mami
authors.initials: M
authors.lastname: Shiraishi
authors.affiliation: Department of Oral and Maxillofacial Surgery, Yamaguchi University Graduate School of Medicine, Minami-kogushi 1-1-1, Ube City, Yamaguchi, 755-8505, Japan.
authors.forename: Yui
authors.initials: Y
authors.lastname: Kawai
authors.affiliation: Department of Oral and Maxillofacial Surgery, Yamaguchi University Graduate School of Medicine, Minami-kogushi 1-1-1, Ube City, Yamaguchi, 755-8505, Japan.
authors.forename: Koji
authors.initials: K
authors.lastname: Harada
authors.affiliation: Department of Oral and Maxillofacial Surgery, Yamaguchi University Graduate School of Medicine, Minami-kogushi 1-1-1, Ube City, Yamaguchi, 755-8505, Japan.
authors.forename: Yoshiya
authors.initials: Y
authors.lastname: Ueyama
mesh_terms: D002648:Child; D002675:Child, Preschool; D002828:Choristoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D007742:Labial Frenum / Q000473:pathology / Q000601:surgery; D008047:Lip Diseases / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D008297:Male; D009061:Mouth Mucosa
keywords: Aberrant tissue; Frenum-like tissue; Inferior labial frenum; Oral synechiae