title: [Cytological study of subretinal fluid].
abstract: OBJECTIVE
  To determine the cellular components of subretinal fluid and the origin of cells participating in the proliferation in the membranous tissue of proliferative vitreoretinopathy (PVR).
  
  
  METHODS
  35 subretinal fluid samples were studied by cytology using autofluorescent and immunohistochemical assays.
  
  
  RESULTS
  There were a large quantity of retinal pigment epithelium (RPE) and small quantity of pigment epithelial cells originated from epithelial cells of ciliary body and iris, there were also various quantities of neuroretinal cells and macrophages. Neither T-lymphocytes nor B-lymphocytes were found in this group of samples.
  
  
  CONCLUSIONS
  RPE, pigment epithelial cells, neuroretinal cells and macrophages are in subretinal fluid and may participate in the formation and development of PVR in various degrees.
authors.affiliation: Department of Ophthalmology, Shanghai First People's Hospital.
authors.forename: X
authors.initials: X
authors.lastname: Xu
authors.forename: Z
authors.initials: Z
authors.lastname: He
mesh_terms: D006801:Humans; D008264:Macrophages / Q000473:pathology*; D010857:Pigment Epithelium of Eye / Q000473:pathology*; D012160:Retina / Q000473:pathology*; D012163:Retinal Detachment / Q000150:complications / Q000473:pathology; D018630:Vitreoretinopathy, Proliferative / Q000150:complications / Q000473:pathology*