"Omega shape" anomaly of the tympanic segment of the facial nerve - a case report
Abstract
Dehiscence of the bony canal of the facial nerve is relatively common in the human adult. The highest incidence occurs in the tympanic segment, near the region of the oval window. However, extreme dehiscence and protrusion of the facial nerve are rare. We present a case of a 34-year-old man suffering intermittent left-sided middle ear discharge for several years. During the operation, we found the trunk of the facial nerve which looked like Greek alphabet letter “omega”. It protruded from the fallopian canal within the middle ear space between the first and second genu. The mucosa which covered the whole protruded facial nerve seemed healthy. The medial part of the cavum tympani was not affected. In this report, we described an extreme protrudion of the facial nerve inside the space of the cavum tympani. The dehiscence of the Fallopian canal was not associated with inflammation and bone resoption. Acta Medica Medianae 2012;51(3):38-40.
How strong is the evidence?
Evidence Hub reads this as a case report, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health.
Read the paper
Related studies
- eggNOG 5.0: a hierarchical, functionally and phylogenetically annotated orthology resource based on 5090 organisms and 2502 viruses
- Online Survival Analysis Software to Assess the Prognostic Value of Biomarkers Using Transcriptomic Data in Non-Small-Cell Lung Cancer
- OptiType: precision HLA typing from next-generation sequencing data
- Nicotinic Cholinergic System and COVID-19: In Silico Identification of an Interaction between SARS-CoV-2 and Nicotinic Receptors with Potential Therapeutic Targeting Implications
- Saccharomyces cerevisiae cells have three Omega class glutathione S-transferases acting as 1-Cys thiol transferases
- Hemolysis at low blood flow rates: in-vitro and in-silico evaluation of a centrifugal blood pump
Go deeper in Evidence Hub
Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.