title: Local injection of OK-432 in the treatment of ranula: a case report.
abstract: We treated a 57-year-old woman for ranula. After aspirating the cyst's contents, we administered 0.1 KE/ml of OK-432 via local injection. One month later, the cyst had still persisted, so we repeated the procedure. After 2 weeks, the ranula began to shrink markedly, and at 4 weeks it had almost disappeared. No recurrence of the ranula was observed during the subsequent 1 year of follow-up. Following each injection, the patient developed transient fever and local swelling but no serious complications. Our experience suggests that OK-432 injection is an effective treatment for ranula. However, because this treatment causes the cyst to collapse rather than disappear completely, patients should be regularly monitored over the long term.
authors.affiliation: Department of Otorhinolaryngology, Nippon Medical School, 1-1-5 Sendagi, Bunkyoku, Tokyo 113-8603, Japan. bxp02646@nifty.ne.jp
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Watanabe
authors.forename: Shunichi
authors.initials: S
authors.lastname: Tomiyama
authors.forename: Ken
authors.initials: K
authors.lastname: Jinnouchi
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Nakajima
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Yagi
mesh_terms: D000970:Antineoplastic Agents / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010844:Picibanil / Q000627:therapeutic use*; D011900:Ranula / Q000188:drug therapy*
chemical_list: D000970:Antineoplastic Agents; D010844:Picibanil