title: Malignant lymphoma of the jaw bone.
abstract: BACKGROUND
  Malignant lymphomas are neoplasms originating from lymphocytes, whose precursor cell or cells are generated during the multipotential differentiation of a stem cell. Extranodal localization most often involves the Waldeyer's ring, nasal cavity, maxillary sinuses, eyeballs, salivary glands, oral cavity, stomach or skin. Localization in the nervous system or facial bones is very rare.
  
  
  METHODS
  This article presents a rare case of a patient with B-cell lymphoplasmocytic lymphoma located in the jaw bones. The diagnosis was established after histopathological investigation of periapical lesions. Due to the localized growth of the malignant lymphoma, the patient underwent surgery combined with radiotherapy. The follow-up period amounted to 14 months and the patient now presents without recurrences or lymphadenopathy.
  
  
  CONCLUSIONS
  All periapical lesions should be sampled for histopathological examination, possibly revealing a hidden neoplastic process.
authors.affiliation: Department of Maxillofacial Surgery, Institute of Surgery, Medical University of Łódź, Poland.
authors.forename: Marcin
authors.initials: M
authors.lastname: Kozakiewicz
authors.forename: Maciej
authors.initials: M
authors.lastname: Karolewski
authors.forename: Józef W
authors.initials: JW
authors.lastname: Kobos
authors.forename: Zofia
authors.initials: Z
authors.lastname: Stołecka
mesh_terms: D006801:Humans; D015451:Leukemia, Lymphocytic, Chronic, B-Cell / Q000175:diagnosis / Q000473:pathology / Q000532:radiotherapy; D016393:Lymphoma, B-Cell / Q000175:diagnosis* / Q000473:pathology / Q000532:radiotherapy; D008297:Male; D008441:Maxillary Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000532:radiotherapy; D008875:Middle Aged; D014057:Tomography, X-Ray Computed