title: [Ultra-structural pathological study of pulmonary fat embolism in rabbits].
abstract: OBJECTIVE
  To explore ultra-structural changes of fat embolism syndrome (FES) in the lung.
  
  
  METHODS
  Fat embolism animal model was developed by fat intravascular injection to the experimental rabbits. The rabbits were sacrificed after thrombosis immediately (0 h), 3 h, 8 h and 1 d, 2 d, 7 d, 14 d after thrombosis, respectively. Rabbits were injected with the same dose of saline in the control group. All experimental procedures were same in experimental and control groups. The animal model of fat embolism was validated using HE and Sudan III staining. Ultra-structural changes of lung were observed by using transmission electron microscopy.
  
  
  RESULTS
  Ultra-structural changes in capillaries and small blood vessels were found in experimental group. Type II alveolar cells, related cells and organelles showed time-dependent changes. Lipid drops and inflammatory cells were not found in control group. Lamellar body did not show emptying phenomenon and the amount of lamellar body was normal.
  
  
  CONCLUSIONS
  The study could provide the theoretical principle for fat embolism casesin forensic pathology.
authors: Department of Forensic Pathology, Wannan Medical College, Wuhu 241002, China. chy5454@163.com
authors: Yang
authors: Y
authors: Chen
authors: Chuan-Jun
authors: CJ
authors: Jiao
mesh_terms: D000818:Animals; D002196:Capillaries / Q000473:pathology / Q000648:ultrastructure; D004195:Disease Models, Animal; D004620:Embolism, Fat / Q000209:etiology / Q000473:pathology*; D004847:Epithelial Cells / Q000473:pathology; D049429:Forensic Pathology; D008168:Lung / Q000473:pathology* / Q000648:ultrastructure; D046529:Microscopy, Electron, Transmission; D011655:Pulmonary Embolism / Q000209:etiology / Q000473:pathology*; D011817:Rabbits; D013194:Staining and Labeling; D013997:Time Factors; D014947:Wounds and Injuries / Q000150:complications