No abstract available.
Ear Canal* ; Keratosis, Seborrheic*

Tumor arising from the ceruminous glands of the external ear canal are very rare and can present a diagnostic dilemma because of their varied clinical and histologic manifestations. We experienced an external auditory canal mass that looked like otofuruncle but was identified as a ceruminous adenoma. A wide local excision with clear margins was made to prevent recurrences. Herein, we report this case and discuss the importance of wide excision. To our knowledge, only one pediatric case has been reported, making this case the second published report of this tumor in childhood.
Adenoma ; Ear Canal ; Recurrence

Cartilaginous choristoma of bony external auditory canal is very rare. Appearing as a horny sha-ped hard mass, cartilaginous choristoma can be found in the medial portion of anterior wall of external auditory canal. Histologically, it consists of adult-type hyaline cartilage without neoplastic features. If cartilaginous choristoma shows growing tendency or ear symptoms, surgical excision would be the treatment of choice. Here, we report a case of cartilaginous choristoma that occurred in the external auditory canal in an 8-year-old boy.
Cartilage ; Choristoma ; Ear ; Ear Canal ; Hyaline Cartilage

Papilloma is a benign neoplasm confined almost exclusively to the sinonasal tract. And rare cases involving middle ear or external auditory canal, usually extended or contaminated from nasal cavity have been reported. We recently experienced a case of squamous papilloma involving middle ear, external auditory canal, and infratemporal fossa without any evidence of involving sinonasal tract. We present a review of literature and discuss the pathophysiology of the papilloma.
Ear Canal* ; Ear, Middle* ; Nasal Cavity ; Papilloma*

The present case report describes an external auditory canal injury following extraction of the lower molar. The external auditory canal was torn in the same fashion that occurs in an anterior tympanic plate fracture. This case demonstrates one of the rare complications associated with dental extractions.
Ear Canal ; Molar* ; Tooth Extraction

No abstract available.
Adhesives* ; Ear Canal* ; Foreign Bodies*

No abstract available.
Carcinoma, Squamous Cell* ; Ear Canal*

Foreign bodies of the external ear have been frequently encountered in the otolaryngological field. Recently, we experienced an interesting case of jugular bulb injury penetrating through the external auditory canal by an ear foreign body (woodswab), which was removed via mastoidectomy and facial recess approach. Immediately after removal of the foreign body, massive bleeding was followed and was controlled by SurgicelR packing and compression. Reporting this case, we suggest that special attention should be paid if the ear foreign body is associated with massive bleeding.
Ear ; Ear Canal ; Ear, External* ; Foreign Bodies* ; Hemorrhage

BACKGROUND AND OBJECTIVES: The peak resonance corresponds to the fundamental frequency whose wavelength is approxi-mately four times the canal length and is between 2 and 3 kHz in a normal ear canal. The possibility that creation of an open cavity mastoid alters the acoustical characteristics of the external ear has been suggested. The aim of this study was to ascertain the acoustical changes in the external auditory canal occasioned by the open cavity mastoidectomy, and compare it with the mastoid obliteration. MATERIALS AND METHODS: We measured the external ear resonance (EER) characteristics in 40 normal ears, 20 ears with open cavity mastoid and 40 ears with obliterated mastoids. The EER characteristics were measured using 6500 hearing aid test system. RESULTS: The means of the peak resonant frequency and the peak amplitude at open cavity mastoids (2350 Hz, 18.5 dB) showed significant differences (p<0.1) when compared with those at normal mastoids. However, the means at obliterated mastoids (2850 Hz, 20.5 dB) recovered to the near normal state. CONCLUSION: While the open cavity mastoidectomy can affect the resonance frequency, the mastoid obliteration may help anatomical reconstruction as well as acoustical recovery.
Acoustics* ; Ear ; Ear Canal ; Ear, External* ; Hearing Aids ; Mastoid

Removing of foreign bodies in the external auditory canal is commonly observed in the otorhinolaryngologic field. Sometimes the size of some materials might change after being embedded in the canal; in such situation, debulking procedures are usually performed to reduce the size of the materials stuck there. But if it is hard to shrink the materials' size, we should consider other procedures. Here we present a minimized procedure utilized to remove nettlesome fragments of industrial cement via 3-dimensional reconstruction of temporal bone computed tomography and partial canaloplasty through transcanal approach.
Ear Canal* ; Foreign Bodies ; Temporal Bone*