title: [Comparative study of lymphoid follicles in mucosa of pharynx and mucosal associated lymphoid tissues in paranasal sinuses].
abstract: OBJECTIVE
  To study the relationship between the lymphoid follicles in mucous membrane of pharynx and mucosal associated lymphoid tissues (MALT).
  
  
  METHODS
  Ten folliculi obtained from 10 patients of follicular pharyngitis and mucosa taken form 10 patients of paranasal sinusitis were fixed in neutral formalin and embedded in paraffin. Sections were prepared, stained by H. E and by immunohistochemical method staining with S-100,and observe by light microscopy. We observed the morphology of lymphoid follicles in mucous membrane of pharynx with MALT in mucosa of paranasal sinusitis as the contrast.
  
  
  RESULTS
  Lymphoid follicles in mucosa of pharynx compared with MALT in the mucosa of paranasal sinuses, there was no mantle zone, no typical germinal center and no mucosal epithelium, immunological staining with S-100 was week.
  
  
  CONCLUSIONS
  The lymphoid follicles in mucosa of pharynx does not belong to the MALT.
authors.affiliation: Department of Otorhinolaryngology, Punan Hospital, Shanghai, 200125, China. zhai_wg@aliyun.com
authors.forename: Weigang
authors.initials: W
authors.lastname: Zhai
authors.affiliation: Department of Pathology, Punan Hospital, Shanghai, China.
authors.forename: Min
authors.initials: M
authors.lastname: Yao
authors.affiliation: Department of Otorhinolaryngology, Punan Hospital, Shanghai, 200125, China.
authors.forename: Jue
authors.initials: J
authors.lastname: Chen
mesh_terms: D002908:Chronic Disease; D006801:Humans; D007150:Immunohistochemistry; D008221:Lymphoid Tissue / Q000473:pathology*; D009297:Nasal Mucosa / Q000473:pathology*; D010256:Paranasal Sinuses / Q000473:pathology*; D010612:Pharyngitis / Q000473:pathology; D010614:Pharynx / Q000473:pathology*; D012852:Sinusitis / Q000473:pathology