Unilateral Isolated Primary Cutaneous Amyloidosis of the External Auditory Canal.
Journal
The journal of international advanced otology
ISSN: 2148-3817
Titre abrégé: J Int Adv Otol
Pays: Turkey
ID NLM: 101522982
Informations de publication
Date de publication:
Dec 2020
Dec 2020
Historique:
entrez:
2
11
2020
pubmed:
3
11
2020
medline:
23
9
2021
Statut:
ppublish
Résumé
Isolated primary cutaneous amyloidosis (PCA) of the external ear is extremely rare. We describe the case of a 65-year-old woman presenting with itching within the left external auditory canal (EAC). Otoscopy revealed a 3 mm whitish lesion involving the cartilaginous portion of the left EAC. The lesion was excised. Histological and immunohistochemical features were consistent with keratinic amyloidosis. A clinical workup was negative for systemic amyloidosis. As far as we know, only nine cases of PCA exclusively involving the EAC have been reported. The frequent occurrence of itching in these patients and the keratinic nature of the amyloid support the role of chronic stimulation/irritation in the pathogenesis of isolated amyloidosis the EAC.
Identifiants
pubmed: 33136030
doi: 10.5152/iao.2020.7570
pmc: PMC7901453
doi:
Types de publication
Case Reports
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
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