Bell’s palsy misdiagnosis: characteristics of occult tumors causing facial paralysis

Abstract Objective The aim of this study was to report the incidence and clinical course of a series of patients who were misdiagnosed with Bell’s palsy and were eventually proven to have occult neoplasms. Methods Two hundred forty patients with unilateral facial paralysis who were assessed at the f...

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Main Authors: Eun-Jae Chung, Damir Matic, Kevin Fung, S. Danielle MacNeil, Anthony C. Nichols, Ruba Kiwan, KengYeow Tay, John Yoo
Format: Article
Language:English
Published: SAGE Publishing 2022-10-01
Series:Journal of Otolaryngology - Head and Neck Surgery
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Online Access:https://doi.org/10.1186/s40463-022-00591-9
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author Eun-Jae Chung
Damir Matic
Kevin Fung
S. Danielle MacNeil
Anthony C. Nichols
Ruba Kiwan
KengYeow Tay
John Yoo
author_facet Eun-Jae Chung
Damir Matic
Kevin Fung
S. Danielle MacNeil
Anthony C. Nichols
Ruba Kiwan
KengYeow Tay
John Yoo
author_sort Eun-Jae Chung
collection DOAJ
description Abstract Objective The aim of this study was to report the incidence and clinical course of a series of patients who were misdiagnosed with Bell’s palsy and were eventually proven to have occult neoplasms. Methods Two hundred forty patients with unilateral facial paralysis who were assessed at the facial nerve reanimation clinic, Victoria Hospital, London Health Science Centre, from 2008 through 2017 were reviewed. Persistent paralysis without recovery was the presenting complaint. Results Nine patients (3.8%) who were proven to have occult neoplasms initially presented with a diagnosis of Bell’s palsy. The mean diagnostic delay was 43.5 months. Four patients were proven to have skin cancers, 3 patients had parotid cancers, and 2 patients had facial nerve schwannomas as a final diagnosis. Initial magnetic resonance imaging (MRI) was performed in all 9 patients and 8 underwent a follow-up MRI. An occult tumor was identified upon review of the original MRI in one patient and at follow-up MRI in 8 patients. The mean time interval between the initial and follow-up imaging was 30.8 months. The disease status at most recent follow-up were no evidence of disease in 2 patients (22%) and alive with disease in 7 patients (78%). An irreversible, progressive pattern of facial paralysis combined with pain, multiple cranial neuropathies or history of skin cancer were predictable risk factors for occult tumors. Seven out of the 9 patients (77.8%) underwent at least one type of facial reanimation surgery, and the final subjective results by the surgeon were available for 5 patients. Three out of the 5 (60%) patients who were available for final subjective analysis were reported as Grade III according to the modified House-Brackmann scale. Conclusion Occult facial nerve neoplasm should be suspected in patients with progressive and irreversible facial paralysis but the diagnosis may only become evident with follow-up imaging. Facial reanimation surgery is a satisfactory option for these patients. Graphical abstract
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series Journal of Otolaryngology - Head and Neck Surgery
spelling doaj-art-d4c1ab04b41c40b590e076ccce0ca3e72025-02-02T23:08:47ZengSAGE PublishingJournal of Otolaryngology - Head and Neck Surgery1916-02162022-10-0151111210.1186/s40463-022-00591-9Bell’s palsy misdiagnosis: characteristics of occult tumors causing facial paralysisEun-Jae Chung0Damir Matic1Kevin Fung2S. Danielle MacNeil3Anthony C. Nichols4Ruba Kiwan5KengYeow Tay6John Yoo7Department of Otolaryngology-Head and Neck Surgery, London Health Sciences Centre, Schulich School of Medicine and Dentistry, Victoria Hospital, Western UniversityDivision of Plastic and Reconstructive Surgery, Department of Surgery, London Health Sciences Centre, Schulich School of Medicine and Dentistry, Western UniversityDepartment of Otolaryngology-Head and Neck Surgery, London Health Sciences Centre, Schulich School of Medicine and Dentistry, Victoria Hospital, Western UniversityDepartment of Otolaryngology-Head and Neck Surgery, London Health Sciences Centre, Schulich School of Medicine and Dentistry, Victoria Hospital, Western UniversityDepartment of Otolaryngology-Head and Neck Surgery, London Health Sciences Centre, Schulich School of Medicine and Dentistry, Victoria Hospital, Western UniversityDepartment of Radiology, London Health Sciences Centre, Schulich School of Medicine and Dentistry, Western UniversityDepartment of Radiology, London Health Sciences Centre, Schulich School of Medicine and Dentistry, Western UniversityDepartment of Otolaryngology-Head and Neck Surgery, London Health Sciences Centre, Schulich School of Medicine and Dentistry, Victoria Hospital, Western UniversityAbstract Objective The aim of this study was to report the incidence and clinical course of a series of patients who were misdiagnosed with Bell’s palsy and were eventually proven to have occult neoplasms. Methods Two hundred forty patients with unilateral facial paralysis who were assessed at the facial nerve reanimation clinic, Victoria Hospital, London Health Science Centre, from 2008 through 2017 were reviewed. Persistent paralysis without recovery was the presenting complaint. Results Nine patients (3.8%) who were proven to have occult neoplasms initially presented with a diagnosis of Bell’s palsy. The mean diagnostic delay was 43.5 months. Four patients were proven to have skin cancers, 3 patients had parotid cancers, and 2 patients had facial nerve schwannomas as a final diagnosis. Initial magnetic resonance imaging (MRI) was performed in all 9 patients and 8 underwent a follow-up MRI. An occult tumor was identified upon review of the original MRI in one patient and at follow-up MRI in 8 patients. The mean time interval between the initial and follow-up imaging was 30.8 months. The disease status at most recent follow-up were no evidence of disease in 2 patients (22%) and alive with disease in 7 patients (78%). An irreversible, progressive pattern of facial paralysis combined with pain, multiple cranial neuropathies or history of skin cancer were predictable risk factors for occult tumors. Seven out of the 9 patients (77.8%) underwent at least one type of facial reanimation surgery, and the final subjective results by the surgeon were available for 5 patients. Three out of the 5 (60%) patients who were available for final subjective analysis were reported as Grade III according to the modified House-Brackmann scale. Conclusion Occult facial nerve neoplasm should be suspected in patients with progressive and irreversible facial paralysis but the diagnosis may only become evident with follow-up imaging. Facial reanimation surgery is a satisfactory option for these patients. Graphical abstracthttps://doi.org/10.1186/s40463-022-00591-9Facial paralysisBell’s palsyFacial nerveFacial reconstructionFacial nerve neoplasm
spellingShingle Eun-Jae Chung
Damir Matic
Kevin Fung
S. Danielle MacNeil
Anthony C. Nichols
Ruba Kiwan
KengYeow Tay
John Yoo
Bell’s palsy misdiagnosis: characteristics of occult tumors causing facial paralysis
Journal of Otolaryngology - Head and Neck Surgery
Facial paralysis
Bell’s palsy
Facial nerve
Facial reconstruction
Facial nerve neoplasm
title Bell’s palsy misdiagnosis: characteristics of occult tumors causing facial paralysis
title_full Bell’s palsy misdiagnosis: characteristics of occult tumors causing facial paralysis
title_fullStr Bell’s palsy misdiagnosis: characteristics of occult tumors causing facial paralysis
title_full_unstemmed Bell’s palsy misdiagnosis: characteristics of occult tumors causing facial paralysis
title_short Bell’s palsy misdiagnosis: characteristics of occult tumors causing facial paralysis
title_sort bell s palsy misdiagnosis characteristics of occult tumors causing facial paralysis
topic Facial paralysis
Bell’s palsy
Facial nerve
Facial reconstruction
Facial nerve neoplasm
url https://doi.org/10.1186/s40463-022-00591-9
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