title: Fate and Development of Human Vomeronasal Organ - A Microscopic Fetal Study.
abstract: BACKGROUND
  The existence of Vomeronasal organ in human is a controversial subject. Presence of Vomeronasal organ and its structure was not reported in standard text books. The presence of Vomeronasal organ in fetal life is doubtful. Hence identification of the organ by histological examination was planned.
  
  
  METHODS
  A study was conducted on resected specimens of nasal septum obtained from 45 spontaneously aborted fetuses from Obstetrics and Gynaecology department, PSG Institute of Medical Sciences and Research, Coimbatore, after ethical clearance.
  
  
  RESULTS
  The histological structure of Vomeronasal organ was observed from 11 weeks old fetus. The epithelial lining of the organ, presence of cilia, presence of lamina propria, acini and the blood vessel and the types of cells were observed. The organ was lined by pseudostratified columnar epithelium. The organ showed Lamina propria with serous acini from 18 weeks fetus. Vomeronasal duct opening into the nasal cavity and three types of cells were observed in 28 weeks fetus.
  
  
  CONCLUSIONS
  Knowledge about the persistence of Vomeronasal organ in fetuses and its structure need to be known. The organ may be found as a putative pit posterior to anterior nasal spine. The organ may be damaged in nasal septal surgeries and nasal endoscopic procedures. The organ may not be seen on gross examination in all human fetuses and cadavers.
authors.affiliation: Assistant Professor, Department of Anatomy, Affiliated to Tamilnadu Dr. M.G.R. Medical University , Chennai, India .
authors.forename: A K Manicka
authors.initials: AK
authors.lastname: Vasuki
authors.affiliation: Former Professor and HOD, Department of Anatomy, Affiliated to Tamilnadu Dr. M.G.R. Medical University , Chennai, India .
authors.forename: T K Aleyemma
authors.initials: TK
authors.lastname: Fenn
authors.affiliation: Associate Professor, Department of Anatomy, Affiliated to Tamilnadu Dr. M.G.R. Medical University , Chennai, India .
authors.forename: M Nirmala
authors.initials: MN
authors.lastname: Devi
authors.affiliation: Assistant Professor, Department of Anatomy, Affiliated to Tamilnadu Dr. M.G.R. Medical University , Chennai, India .
authors.forename: T Deborah Joy
authors.initials: TD
authors.lastname: Hebzibah
authors.affiliation: Professor and HOD, Department of Anatomy, Affiliated to Tamilnadu Dr. M.G.R. Medical University , Chennai, India .
authors.forename: M
authors.initials: M
authors.lastname: Jamuna
authors.affiliation: Associate Professor, Department of Anaesthesiology, Affiliated to Tamilnadu Dr. M.G.R. Medical University , Chennai, India .
authors.forename: K Kalyana
authors.initials: KK
authors.lastname: Sundaram
keywords: Fetus; Nasal cartilage; Serous acini