Foreign bodies in the external auditory canal
(EAC) are common conditions experienced in the otorhinolaryngology practice, particularly in children aged below 5 years.
Formation of wax in the external auditory canal
(EAC) is a physiologic phenomenon.
The ICCR data set provides guidelines for the reporting of the biopsy and resection specimens of benign and malignant primary tumors of the external auditory canal
(EAC), middle ear, and inner ear.
The occurrence of LMA in the external auditory canal
(EAC) is extremely rare.
High-resolution computerized tomography (256-detector multislice CT scanner, Somatom Definition Flash, Siemens Healthcare, Erlangen, Germany) demonstrated the dislocated incus protruding from the external auditory canal
(Figures 1 and 2).
Otoscopy revealed a large, bulging mass on the posterosuperior aspect of the external auditory canal
(EAC); the tympanic membrane was invisible (figure 1).
The mite is living on the epidermal surface of auditory canal
without burrowing into tissue and feeds on tissue fluids and debris (Maazi et al., 2010).
In contrast, TMJ ganglion presenting as a lesion in the external auditory canal
(EAC) is not usually visible, and therefore asymptomatic patients may not require treatment.
Type I anomalies are ectodermal in origin and arise from the duplication of the membranous external auditory canal
. Type II anomalies are ectodermal and mesodermal in origin and arise from the duplication of the membranous and cartilaginous external auditory canal
Posterior dislocations occur as a result of direct blow to chin and condyle pushed posteriorly towards the mastoid causing damage to the external auditory canal
. Dislocation or subluxation of the condyle unilaterally is common but bilateral cases are rare and need proper assessment and treatment.
This article bring attention to a specific anatomical defect in the external auditory canal
(EAC) that may affect the diagnosis and treatment protocol for oral and maxillofacial surgeons who deal with temporomandibular joint (TMJ) soft tissue issues, as well as otolaryngologists in their assessment of otological symptomatology.
Among the topics are the anatomy of the temporal bone, endoscopic middle ear dissection, trans-labyrinthine exposure of the internal auditory canal
, the middle cranial fossa approach to the internal auditory canal
, and achieving mastery in temporal bone dissection: the role of deliberate practice and formative feedback.