title: Middle turbinate chondro-osseous respiratory epithelial adenomatoid hamartoma.
abstract: OBJECTIVE
  Chondroosseous respiratory epithelial adenomatoid hamaroma (COREAH) is an extremely rare, developmental malformation. COREAH is characterized by a spectrum of chondro-osseous metaplasia that arise from the mesenchymal stroma, and it includes dilated submucosal glands lined with respiratory epithelium. This case report aimed to describe a COREAH that originated in the nasal cavity.
  
  
  METHODS
  A 68-year-old woman presented with unilateral nasal obstruction. Endonasal and radiological findings suggested a diagnosis of an unilateral inflammatory polyp. However, after excision of the mass with endoscopic guidance, a histological examination supported a final diagnosis of a nasal COREAH.
  
  
  CONCLUSIONS
  To our knowledge, this was the first description of a COREAH that originated from the middle turbinate and presented as a choanal polyp. The role of the pathologist is essential for a correct diagnosis.
authors.forename: A
authors.initials: A
authors.lastname: Perić
authors.forename: B
authors.initials: B
authors.lastname: Vukomanović-Durđević
authors.forename: I
authors.initials: I
authors.lastname: Stanojević
mesh_terms: D000368:Aged; D001706:Biopsy; D003937:Diagnosis, Differential; D004724:Endoscopy; D005260:Female; D006222:Hamartoma / Q000175:diagnosis*; D006801:Humans; D009669:Nose Neoplasms / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed