title: Sialendoscopic removal of fish bone-induced sialoliths in the duct of the submandibular gland.
abstract: Obstructive sialadenitis of the submandibular gland is commonly caused by sialoliths, but more rarely by foreign body-induced sialoliths. Here, we report minimally invasive sialendoscopic removal of fish bone-induced sialoliths in the duct of the submandibular gland. A 43-year-old woman presented with recurrent swelling of the right submandibular gland at other hospital. Computed tomography (CT) showed an 8-mm linear calcification in the posterior part of Wharton's duct. The lesion was deemed difficult to remove and she was followed up. However, because the lesion did not resolve spontaneously within 9 months and chronic sialadenitis symptoms persisted, she was referred to our department for endoscopic removal. CT showed a linear calcification (5.6×1.2×0.8mm) connecting 2 spherical calcifications (2.3×2.1×1.9mm; 1.8×1.4×1.1mm) in the anterior part of Wharton's duct. The patient underwent endoscopic removal of the lesion using a 1.6-mm-diameter sialendoscope under local anesthesia. The specimen contained a fish bone connecting 2 sialoliths. The patient was unaware of the fish-bone injury. After removal, there was no recurrence of submandibular gland swelling during 6 months follow-up.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan. Electronic address: iwai104oams@yahoo.co.jp.
authors.forename: Toshinori
authors.initials: T
authors.lastname: Iwai
authors.affiliation: Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan.
authors.forename: Satomi
authors.initials: S
authors.lastname: Sugiyama
authors.affiliation: Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan.
authors.forename: Yuichiro
authors.initials: Y
authors.lastname: Hayashi
authors.affiliation: Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan.
authors.forename: Senri
authors.initials: S
authors.lastname: Oguri
authors.affiliation: Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan.
authors.forename: Makoto
authors.initials: M
authors.lastname: Hirota
authors.affiliation: Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan.
authors.forename: Kenji
authors.initials: K
authors.lastname: Mitsudo
authors.affiliation: Department of Oral and Maxillofacial Surgery, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan.
authors.forename: Iwai
authors.initials: I
authors.lastname: Tohnai
mesh_terms: D000328:Adult; D000818:Animals; D001842:Bone and Bones; D004724:Endoscopy; D005260:Female; D005399:Fishes; D005547:Foreign Bodies / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D012465:Salivary Duct Calculi / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D018987:Salivary Ducts / Q000000981:diagnostic imaging / Q000601:surgery*; D012793:Sialadenitis / Q000209:etiology / Q000601:surgery*; D013363:Submandibular Gland / Q000000981:diagnostic imaging / Q000601:surgery*; D013364:Submandibular Gland Diseases / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D014057:Tomography, X-Ray Computed
keywords: Fish bone; Foreign body; Sialendoscopy; Submandibular gland