A Case of Bilateral Mixed Type Laryngocele / 대한이비인후과학회지

A laryngocele is an uncommon, air-filled dilatation of the laryngeal saccule or appendix of the laryngeal ventricle with an unclear etiology. This abnormality is generally classified into internal, external, or mixed type depending on their relationship to the thyrohyoid membrane. Many laryngoceles are asymptomatic and are discovered incidentally when radiographs of the neck or endolaryngeal examinations are performed for unrelated symptoms. We have experienced a case of bilateral mixed type laryngocele.

Histopathologic Study of the Guinea Pig Stapediovestibular Joint in Experimental Otitis Media / 대한이비인후과학회지

BACKGROUND AND OBJECTIVES: Otitis media is one of the most common diseases in otolaryngology, and the stapediovestibular joint could be influenced by the inflammation of the middle ear cavity. This study was performed in order to observe the changes of the stapediovestibular joint in experimentally induced otitis media. MATERIALS AND METHODS: Otitis media was induced by innoculation of Pseudomonas aeruginosa to the tympanic bullae of a guinea pig. The temporal bone was then removed after 1 week, 2 weeks, 4 weeks, and 7 weeks and observed with a light microscope. RESULTS: In the first week, many neutrophils and monocytes were aggregated in the middle ear cavity. The continuity of the middle ear mucosa was broken especially on the stapediovestibular joint, so the joint cavity was exposed. In the second week, inflammation remained. The mucosa of the middle ear cavity had thickened and the submucosal inflammatory cells were aggregated. In the fourth week, the inflammation was nearly subsided and the mucosa around the stapediovestibular joint was nearly normalized. In the seventh week, there was no evidence of the inflammation in the middle ear cavity and around the stapediovestibular joint. CONCLUSION: These findings suggest that the stapediovestibular joint could have been damaged by the inflammation in the middle ear, and that inflammation can influence the inner ear.

A Case of Conchal Mucocele with Exophthalmos / 대한이비인후과학회지

An enlarged pneumatized middle turbinate, termed "concha bullosa" is a relatively common anatomical variant. It may be the site of inflammatory disease ranging from simple mucosal thickening to a mucocele. But a conchal mucocele is a rare disease such as mucoceles of the posterior ethmoid and sphenoid sinus. The mucociliary transport within a concha bullosa is usually toward the conchal ostium located on the anterosuperior aspect of the middle turbinate and in most cases it opens into the frontal recess. Chronic obstruction of a conchal ostium can lead to a mucocele. Chronic pressure within the mucocele can cause the walls of the middle turbinate to expand, further destructing bulla, other ethmoid cells, and lamina papyracea. Authors have experienced one case of a conchal mucocele with anterior ethmoid and frontal recess extension which presented with exophthalmos. We performed functional endoscopic sinus surgery. Postoperatively, exophthalmos was spontaneously corrected.