title: [Morphologic study of nasolacrimal duct mucosa-associated lymphoid tissue].
abstract: OBJECTIVE
  To investigate the features of nasolacrimal duct MALT (mucosa-associated lymphoid tissue), and to explore the aetiology of chronic dacryocystitis.
  
  
  METHODS
  The mucous of nasolacrimal duct, nasal cavity, pharyngeal and trachea of 20 rabbits were studied, and the lymphoid tissue and HEV of them were compared.
  
  
  RESULTS
  The number of lymphoid follicle and HEV in nasolacrimal duct epidermis were less than that in nasal cavity, pharyngeal and trachea (P<0.01).
  
  
  CONCLUSIONS
  In normal condition the immune response of nasolacrimal duct membranae is lower than other mucosa of head-neck.
authors.affiliation: Department of Otorhinolaryngology, the First Affiliated Hospital of Jinan University, Guangzhou, 510630, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Zhang
authors.forename: Jiqun
authors.initials: J
authors.lastname: Wang
authors.forename: Lihua
authors.initials: L
authors.lastname: Wang
authors.forename: Yanchun
authors.initials: Y
authors.lastname: Shan
mesh_terms: D000818:Animals; D003607:Dacryocystitis / Q000276:immunology / Q000473:pathology*; D005260:Female; D008221:Lymphoid Tissue / Q000166:cytology*; D008297:Male; D009092:Mucous Membrane / Q000166:cytology*; D009301:Nasolacrimal Duct / Q000033:anatomy & histology*; D011817:Rabbits