A 49-year-old female patient presented with mass occluding her external auditory meatus. Surgical exploration revealed that the mass eroded the bony canal wall and biopsy reported the mass as a schwannoma. Schwannoma should be considered in the differential diagnosis of a soft tissue swelling arising from the external auditory canal.
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http://dx.doi.org/10.5606/kbbihtisas.2015.43402 | DOI Listing |
Indian J Otolaryngol Head Neck Surg
January 2025
Department of Head and Neck Oncology, Mahatma Gandhi Cancer Hospital, Miraj, Maharashtra India.
Malignant melanoma (MM) is predominantly seen in the skin, but it can also be seen in the eyes, ear, gastrointestinal tract, genital tract and mucous membrane of the oral cavity. MM of the ear accounts 1-4% of all cutaneous melanomas. In ear, pinna is the most common site.
View Article and Find Full Text PDFIndian J Otolaryngol Head Neck Surg
February 2025
Velammal Medical College Hospital and Research Institute, Madurai, Tamilnadu India.
Ear canal mass lesions are very rare and can arise due to varied pathology ranging from simple polyp to severe malignancy. Common causes for ear canal mass formation includes aural polyp, cholesteatoma, bony exostosis and tumors. Clinical symptoms and treatment options vary depending on pathology.
View Article and Find Full Text PDFHum Cell
March 2025
Department of Otolaryngology-HNS, Wayne State University School of Medicine, Detroit, MI, USA.
Spiral ganglion neurons (SGNs) are crucial for transmitting auditory signals from the inner ear to the brainstem, playing a pivotal role in the peripheral hearing process. However, SGNs are usually damaged by a variety of insults, which causes permanent hearing loss. Generating SGNs from stem cells represents a promising strategy for advancing cell-replacement therapies to treat sensorineural hearing loss.
View Article and Find Full Text PDFEur J Histochem
January 2025
Otolaryngology & Head and Neck Center, Cancer Center, Department of Otolaryngology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou.
In the present study, the expression of S100β was examined in the mouse cochlea from embryonic day 17 (E17) to postnatal day 32 (P32) using immunofluorescence, aiming to explore its possible role in auditory system. At E17, S100β expression was not detected, except in the external cochlear wall. Starting at E18.
View Article and Find Full Text PDFIndian J Otolaryngol Head Neck Surg
February 2025
Department of Otolaryngology, Faculty of Medicine, Izmir Democracy University, Izmir, Turkey.
The intricacies of Endoscopic Type 1 tympanoplasty necessitate a bespoke surgical methodology, particularly in graft selection, to efficaciously address individual variances in tympanic membrane (TM) perforations. This manuscript delineates our investigative insights into the nuanced process of graft technique determination before endoscopic tympanoplasty, underscoring the pivotal role of personalized surgical strategies in optimizing patient outcomes. This study encompassed a cohort of thirty patients stratified into three groups based on a constellation of criteria: external ear canal dimensions, dermal characteristics, TM perforation location, and magnitude, alongside assessments of comorbidities and historical chronic otitis instances.
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