title: Characteristic ultrasound features of mucosa-associated lymphoid tissue lymphoma of the salivary and thyroid gland.
abstract: CONCLUSIONS
  The characteristic ultrasound appearance of mucosa-associated lymphoid tissue (MALT) lymphoma of the head and neck provides diagnostic information regarding masses or swellings in the head and neck region.
  
  
  OBJECTIVE
  There are only a few reports about ultrasound features of malignant lymphoma (ML) of the head and neck. We have noticed that the ultrasound appearances of cases with MALT lymphoma resembled each other even when the appearances of other images like computed tomography were absolutely different. The objective of this study was to delineate the reliability of this characteristic ultrasound appearance of MALT lymphoma of the head and neck.
  
  
  METHODS
  The ultrasound examinations of 30 patients with histopathologically proven primary ML of the head and neck (15 cases of MALT) were reviewed. The ultrasound results of each case were independently compared to the results of the histopathological examination.
  
  
  RESULTS
  Two ultrasound patterns were observed for MALT lymphoma. The first was characterized by a marked hypoechoic area with interspersed linear echogenic strands (linear echogenic strands pattern), and the second was characterized by multiple, relatively large, hypoechoic segments (segmental pattern). Histopathologically, these patterns could be explained on the basis of the expansion of lymphoma cells demarcated by narrow or wide fibrous bands.
authors.affiliation: Department of Otolaryngology Head and Neck Surgery.
authors.forename: Yorihisa
authors.initials: Y
authors.lastname: Orita
authors.forename: Yasuharu
authors.initials: Y
authors.lastname: Sato
authors.forename: Nobuhiko
authors.initials: N
authors.lastname: Kimura
authors.forename: Hidenori
authors.initials: H
authors.lastname: Marunaka
authors.forename: Tomoyasu
authors.initials: T
authors.lastname: Tachibana
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Yamashita
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Hanakawa
authors.forename: Tadashi
authors.initials: T
authors.lastname: Yoshino
authors.forename: Kazunori
authors.initials: K
authors.lastname: Nishizaki
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012468:Salivary Gland Neoplasms / Q000000981:diagnostic imaging*; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging*; D014463:Ultrasonography; D055815:Young Adult