Facial nerve schwannoma mimicking chronic suppurative otitis media: A case report

Rationale: Facial nerve schwannoma (FNS) is a rare slow-growing nerve sheath tumor derived from Schwann cells. FNS with normal facial nerve function may sometimes be misdiagnosed as otitis media because of similar ontological symptoms such as purulence, tympanic membrane damage, and hearing loss. Patient concerns: A 68-year-old woman was referred to our department because of otorrhea and hearing loss in the right ear for 20 years. Otoscopy revealed abundant purulent secretions deep in the right external auditory canal, and granulation proliferation in the posterior part of membranae tensa. Audiogram showed a right mixed hearing loss with an 85-dB pure-tone average and 35-dB air-bone gap. Diagnosis: This patient was misdiagnosed as chronic suppurative otitis media before surgery. During surgery, a mass was found, and intraoperative frozen section histopathology confirmed an FNS. Interventions: This patient was subjected to mastoidectomy for curing chronic suppurative otitis media initially. During surgery, a mass was found attached and widely extended into the tympanic and mastoid segments. We removed most part of the mass, however found the mass deriving from the vertical part of the facial nerve. Intraoperative frozen section histopathology confirmed an FNS. So we removed the incurs and malleus, and searched for the edge of the mass. The mass involved multisegments of facial nerve including the tympanic, vertical and pyramidal segments. The tumor was removed compl...
Source: Medicine - Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research

Related Links:

ConclusionsFollowing penicillin V, we observed a remarkable enrichment of the aecal resistome, indicating that even narrow-spectrum antibiotics may have important consequences in selecting for a more resistant microbiome.
Source: Journal of Global Antimicrobial Resistance - Category: Infectious Diseases Source Type: research
In conclusion, we propose that LGG can be safely administered to toddlers and older children to manage the symptoms of AGE and prevent AAD. These findings should be considered for incorporation into clinical practice guidelines and should help to focus the efforts of the probiotic industry. PMID: 32059116 [PubMed - as supplied by publisher]
Source: Postgraduate Medicine - Category: Internal Medicine Tags: Postgrad Med Source Type: research
AbstractAll infective bacterial species need to conquer the innate immune system in order to colonize and survive in their hosts. The human respiratory pathogensHaemophilus influenzae andMoraxella catarrhalis are no exceptions, and have developed sophisticated mechanisms to evade complement ÔÇÉmediated killing. Both bacterial species carry lipooligosaccharides preventing complement attacks, and attract and utilize host complement regulators C4b binding protein and Factor H to inhibit the classical and alternative pathways of complement activation, respectively. In addition, the regulat or of the terminal pathway of complem...
Source: FEBS Letters - Category: Biochemistry Authors: Tags: REVIEW ARTICLE Source Type: research
Alloiococcus otitidis and Turicella otitidis are common bacteria of the human ear. They have frequently been isolated from the middle ear of children with otitis media (OM), though their potential role in this disease remains unclear and confounded due to their presence as commensal inhabitants of the external auditory canal. In this review, we summarize the current literature on these organisms with an emphasis on their role in OM. Much of the literature focuses on the presence and abundance of these organisms, and little work has been done to explore their activity in the middle ear. We find there is currently insufficie...
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
Conclusions: There was no beneficial outcome of tympanocentesis performed concurrently with BET and therefore it should not be routinely recommended. The success of therapy appears to be reduced compared with other pathologies caused by Eustachian tube dysfunction.
Source: Otology and Neurotology - Category: ENT & OMF Tags: MIDDLE EAR AND MASTOID DISEASE Source Type: research
Conclusion: Macrophage migration inhibitory factor has an important role in the production of IL-1β and the NLRP3 inflammasome. Controlling the inflammation by modulating macrophage migration inhibitory factor and the NLRP3 inflammasome may be a novel therapeutic strategy for otitis media.
Source: Otology and Neurotology - Category: ENT & OMF Tags: MIDDLE EAR AND MASTOID DISEASE Source Type: research
ConclusionSP helps in isolating the cavity from external environment after removal of disease, improves the exposure and access, reduces risk of infection and cerebrospinal fluid (CSF) leaks and facilitates CI. Meticulous surgical technique will reduce the complications and long term follow up is needed to detect entrapped cholesteatoma. Subtotal petrosectomy with blind sac closure of external ear canal is required in certain specific situations. It is a safe and effective surgery with acceptable rate of complications.
Source: Indian Journal of Otolaryngology and Head and Neck Surgery - Category: ENT & OMF Source Type: research
Conclusions and significance: This case-control study demonstrated that the presence of COM plus biofilm was associated with a given microbiota which contained more Firmicutes. Our study allows a better understanding of physiopathological mechanisms involved in chronic otitis media and paves the way for further investigations. PMID: 32049553 [PubMed - as supplied by publisher]
Source: Acta Oto-Laryngologica - Category: ENT & OMF Authors: Tags: Acta Otolaryngol Source Type: research
The Jeff mouse mutant carries a mutation in the F-box only 11 gene (Fbxo11) and heterozygous animals display conductive deafness due to the development of otitis media (OM). The Fbxo11 locus is also associated with chronic otitis media with effusion (COME) and recurrent OM in humans. The Jeff mutation affects the ability of FBXO11 to stabilize p53 that leads to perturbation in the TGF-beta/Smad2 signaling pathway important in immunity and inflammation. In the current study, we evaluated the effect of the Jeff mutation on the immune cell content using multicolor flow cytometry. In blood of Jeff heterozygotes, we observed a ...
Source: Frontiers in Genetics - Category: Genetics & Stem Cells Source Type: research
Blue Water Vaccines Inc., a Norwood startup, has entered into an exclusive worldwide license agreement with St. Jude Children ’s Research Hospital to develop a vaccine for Streptococcus pneumoniae. The bacteria can cause many kinds of diseases, including the lung infection pneumonia. “A major limitation of the currently licensed pneumococcal vaccines is the lack of efficacy against mucosal disease manifestations such as acute otitis media, acute bacterial sinusitis and pneumonia,” Blue Water…
Source: bizjournals.com Health Care:Pharmaceuticals headlines - Category: Pharmaceuticals Authors: Source Type: news
More News: CT Scan | Internal Medicine | Lessons | MRI Scan | Otitis | Otitis Media | Otoscopy