The pathologic changes of the middle ear and mastoid bone mucosa in two pediatric patients with long standing chronic serous otitis media were studied by electron and light microscopy. The embryological development of the eustachian tube, middle ear cleft, and mastoid bone suggests a common physiological and anatomical continuity. The histological changes by light and electron microscopy in these patients demonstrates the metaplastic changes of the basal cell of the mucosa differentiating into mucous and keratin cells. These metaplastic changes are associated with the exudative process known as chronic serous otitis media.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1288/00005537-198508000-00007 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Temporal CT Evaluation of the Relationships between Basic Anatomical Structures and the Round Window: Importance for the Cochlear Implant Surgery.
J Neurol Surg B Skull Base
February 2025
Department of Radiology, Faculty of Medicine, Kırıkkale University, Kırıkkale, Türkiye.
In the present study, we investigated the round window (RW) and neighboring anatomical structures using temporal computed tomography (CT) which are important for cochlear implant (CI) electrodes. In this retrospective study, the temporal CT images of 112 adult patients (45 males and 67 females) were evaluated. We classified mastoid pneumatization, and measured RW diameter, RW-carotid canal (CC) distance, RW-facial nerve mastoid segment (FNMS) distance, RW-pyramidal eminence distance, RW-jugular bulb (JB) distance, and RW-internal acoustic canal (IAC) distance.
View Article and Find Full Text PDFPostauricular feather foreign body in an infant.
BMJ Case Rep
January 2025
Ear, Nose and Throat, James Cook University Hospital, Middlesbrough, UK.
A male infant presented with reduced oral intake, low-grade fever and postauricular erythema. Clinical examination revealed a soft, tender swelling posteroinferior to the mastoid tip with a dull tympanic membrane on otoscopy. Cross-sectional imaging did not show any evidence of middle ear infection or mastoiditis.
View Article and Find Full Text PDFUnveiling pterion variability: a meta-analytic approach to enhance neurosurgical precision.
Surg Radiol Anat
January 2025
Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy.
Purpose: This meta-analytical systematic review aims at investigating the variability of the pterion, focusing on its morphological types and precise distances from various bony landmarks. Additionally, the neurosurgical significance of this critical cranial landmark is examined in depth.
Methods: The systematic review was conducted following PRISMA 2020 and Evidence-based Anatomy Workgroup guidelines for anatomical studies.
Exploration of the dynamics of otic capsule and intracochlear pressure: Numerical insights with experimental validation.
J Acoust Soc Am
January 2025
Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
The otic capsule and surrounding temporal bone exhibit complex 3D motion influenced by frequency and location of the bone conduction stimulus. The resultant correlation with the intracochlear pressure is not sufficiently understood, thus is the focus of this study, both experimentally and numerically. Experiments were conducted on six temporal bones from three cadaver heads, with BC hearing aid stimulation applied at the mastoid and classical BAHA locations across 0.
View Article and Find Full Text PDFCase report: Endolymphatic sac tumor with blurred vision.
Front Oncol
January 2025
The Second Clinical Medicine College, Jinan University, Shenzhen, China.
Introduction: Endolymphatic sac tumor (ELST) is a rare neoplasm that exhibits aggressive growth primarily in the endolymphatic capsule and can potentially affect nearby neurovascular structures. The diagnosis of ELST poses challenges due to its low prevalence, gradual progression, and nonspecific symptomatology. It is currently believed that prompt surgical intervention is recommended for endolymphatic sac tumors upon diagnosis.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!