[Morphologic study of nasolacrimal duct mucosa-associated lymphoid tissue].
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.
Zhang
Tao
T
Department of Otorhinolaryngology, the First Affiliated Hospital of Jinan University, Guangzhou, 510630, China.
Wang
Jiqun
J
Wang
Lihua
L
Shan
Yanchun
Y
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