Distinct Histopathology Characteristics in Empty Nose Syndrome.
Atrophic rhinitis, empty nose syndrome, histopathology, immunohistochemical stain, TRPM8
Journal
The Laryngoscope
ISSN: 1531-4995
Titre abrégé: Laryngoscope
Pays: United States
ID NLM: 8607378
Informations de publication
Date de publication:
01 2021
01 2021
Historique:
received:
23
10
2019
revised:
13
01
2020
accepted:
04
02
2020
pubmed:
4
3
2020
medline:
29
1
2021
entrez:
4
3
2020
Statut:
ppublish
Résumé
Empty nose syndrome (ENS) is a controversial disorder and the change of histopathology has never been discussed. This study aimed to conduct a structured histological review to improve the diagnosis and understanding of ENS. Further immunohistochemical staining of transient receptor potential channel melastatin 8 (TRPM8) was performed. A prospective case-control study in a tertiary medical center. Consecutive patients with ENS who were diagnosed and received surgical intervention after failure of conservative management were included. Patients with benign pituitary gland tumor receiving transsphenoidal excision were enrolled as control group. Biopsy of inferior turbinate was obtained during surgery for histological review and immunohistochemical staining. Seventeen patients with ENS and six patients as a control group were established for structured histological review. Patients with ENS presented significantly more squamous metaplasia, a higher rate of submucosal fibrosis, and a lower submucosal gland number grading. Additionally, a unique histological change called goblet cell metaplasia was found in the ENS group. The respiratory epitheliums of ENS were mostly intact with preservation of ciliated cells and goblet cells. The ENS group had a significantly lower expression level of TRPM8. The nasal mucosa of ENS experienced some airway remodeling and thermoreceptors downregulation, which contribute to clinical symptoms. The distinct histology of ENS included preserved respiratory epithelium and goblet cell metaplasia, accompanying with characteristics similar to atrophic rhinitis. Biopsy of the inferior turbinate may help diagnose ENS. 4 Laryngoscope, 131:E14-E18, 2021.
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
E14-E18Commentaires et corrections
Type : CommentIn
Type : CommentIn
Informations de copyright
© 2020 The American Laryngological, Rhinological and Otological Society, Inc.
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