title: Submandibular gland ectopia associated with atrophy of floor of mouth muscles.
abstract: OBJECTIVE
  We describe a rare case of an ectopic submandibular gland associated with atrophy of the ipsilateral floor of the mouth muscles.
  
  
  METHODS
  Case report and review of the world literature regarding ectopic submandibular glands.
  
  
  RESULTS
  The reported patient had an ectopic submandibular gland associated with atrophy of the ipsilateral anterior digastric and mylohyoid muscles. This implies maldevelopment of these muscles in the floor of the mouth and arrest of the normal migration of the submandibular gland. The condition was diagnosed using magnetic resonance imaging and conventional submandibular gland sialography.
  
  
  CONCLUSIONS
  Submandibular gland ectopia in the floor of the mouth is a rare phenomenon. The described case represents the first report of an ectopic submandibular gland associated with atrophy of the ipsilateral floor of the mouth muscles. Radiologists and clinicians should familiarise themselves with this entity and its imaging findings, in order to prevent unnecessary biopsy of this benign condition.
authors.affiliation: Department of Radiology, Northwick Park and St Mark's Hospital, Harrow, UK. anikahansmann@yahoo.com
authors.forename: A
authors.initials: A
authors.lastname: Hansmann
authors.forename: R K
authors.initials: RK
authors.lastname: Lingam
mesh_terms: D000328:Adult; D002828:Choristoma / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009059:Mouth Diseases / Q000175:diagnosis* / Q000473:pathology; D009060:Mouth Floor; D009133:Muscular Atrophy / Q000473:pathology*; D009334:Neck Muscles / Q000473:pathology*; D012796:Sialography; D013363:Submandibular Gland