title: Malignant lymphoma in maxilla with cystic involvement: a case report.
abstract: BACKGROUND
  Most radiolucent jaw lesions are benign and resolve with proper diagnosis and treatment. However, a small percentage of radiolucent jaw lesions are malignant and more difficult to manage.
  
  
  METHODS
  A biopsy of the radiolucent jaw lesion associated with swelling after nonsurgical root canal therapy was submitted.
  
  
  RESULTS
  The lesion had the combined diagnosis of diffuse large B-cell lymphoma with cystic involvement. The patient has since undergone radiation and chemotherapy treatments. Recall appointments indicate healing of the lesion, and no other areas of lymphoma have been found.
  
  
  CONCLUSIONS
  The existence of a nonhealing radiolucent jaw lesion emphasizes the importance of an early, definitive diagnosis with biopsy.
authors.affiliation: Division of Endodontics, University of Minnesota School of Dentistry, Minneapolis, MN 55455, USA.
authors.forename: Tyler
authors.initials: T
authors.lastname: Koivisto
authors.forename: Walter R
authors.initials: WR
authors.lastname: Bowles
authors.forename: William A
authors.initials: WA
authors.lastname: Magajna
authors.forename: Michael
authors.initials: M
authors.lastname: Rohrer
mesh_terms: D001706:Biopsy / Q000379:methods; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007570:Jaw Cysts / Q000175:diagnosis* / Q000000981:diagnostic imaging; D016403:Lymphoma, Large B-Cell, Diffuse / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008439:Maxillary Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008441:Maxillary Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008875:Middle Aged; D011859:Radiography; D012390:Root Canal Therapy / Q000379:methods; D014945:Wound Healing / Q000502:physiology