title: Kaleidoscope of oral artifacts: A vivid picture through light and polarizing microscope.
abstract: BACKGROUND
  This study is based on finding of an inexplicable artifact that was seen in the tissue received as periapical granuloma.
  
  
  OBJECTIVE
  To observe the histological appearance of different commonly implanted food particles and easily incorporated substances from a laboratory in the oral biopsy tissues.
  
  
  METHODS
  Various food particles such as wheat chapatti, beans, peas, pulses, and coriander leaves and substances such as a suture, cotton, and paper that can easily gain entry during biopsy and histotechnical procedures were intentionally introduced in the tissue specimens of a uterus from outside. Both light and polarizing microscopes were utilized to view them.
  
  
  RESULTS
  Different food particles and substances gave different appearances that could lead to misdiagnosis. Some of these also exhibited positive birefringence under the polarizing microscope.
  
  
  CONCLUSIONS
  Knowledge and familiarity with probable foreign substances which can appear in tissues may help prevent misdiagnosis or erroneous diagnosis of biopsy specimens.
authors.affiliation: Department of Oral Pathology and Microbiology, Sudha Rustagi College of Dental Sciences and Research, Faridabad, Haryana, India.
authors.forename: Priyanka
authors.initials: P
authors.lastname: Kardam
authors.forename: Kanu
authors.initials: K
authors.lastname: Jain
authors.forename: Monica
authors.initials: M
authors.lastname: Mehendiratta
authors.forename: Yulia
authors.initials: Y
authors.lastname: Mathias
mesh_terms: D016477:Artifacts; D001706:Biopsy / Q000379:methods*; D006651:Histocytochemistry / Q000379:methods*; D008027:Light; D008853:Microscopy / Q000379:methods*; D010484:Periapical Granuloma / Q000175:diagnosis* / Q000473:pathology*