Two Cases of Button Battery in Nasal Cavity / 대한이비인후과학회지

With the wide use of button battery in everyday life, the risk associated with its use is also increasing. Mechanical pressure, chemical and electrical burn caused by button battery in the nasal cavity result in necrosis. Prolonged presence of button battery in the nasal cavity may also incur serious side effects of cosmetic nature, including saddle nose. Thus prompt diagnosis and treatment is important when button battery is detected in the nasal cavity. We present two cases of button battery in the nasal cavity with review of literatures.

Anatomical Characteristics through Computed Tomography Analysis in Patients Undergoing Revision Endoscopic Sinus Surgery / 대한이비인후과학회지

BACKGROUND AND OBJECTIVES: The aim of this study was to evaluate the non-dissected anatomic structures and abnormal computed tomographic findings that contribute to the recurrence of chronic rhinosinusitis (CRS) or the trail of revision endoscopic sinus surgery (ESS). SUBJECTS AND METHOD: The medical records of 34 subjects who were diagnosed with recurrent chronic rhinosinusitis, and required to undergo revision endoscopic sinus surgery were collected retrospectively. The subjects' computed tomography results were examined by a radiology specialist. RESULTS: The most common anatomic factors associated with the revision ESS for recurrence of CRS or retained inflammation were residual uncinate process (47.0%) and residual anterior ethmoidal cells followed by undissected posterior ethmoidal cells (38.2%) and obstructed sphenoid sinus ostium (32.3%). In addition, the uncorrected septal deviation, retained agger nasi cells or Haller cells and lateralized middle turbinate were also identified in the patients. CONCLUSION: From these data, we analyzed anatomical structures and CT findings related to the failure of primary ESS. We suggest that careful attention be given to these structures after primary ESS so as to reduce the failure rate and increase successful outcomes.

A Case of Arachnoid Cyst Causing Unilateral Sudden Hearing Loss / 대한이비인후과학회지

Arachnoid cyst develops due to cerebrospinal fluid increase in the subarachnoid space and is mostly located in the middle cranial fossa, which may be associated with non-specific symptoms such as headache, unsteadiness and ataxia. However, it rarely occurs in the posterior cranial fossa and is mostly asymptomatic. When symptoms do develop, they are usually headache and psychomotor retardation, which make diagnosis very difficult. Diagnosis is generally made through magnetic resonance imaging and surgical treatment is indicated for cases where there are displacement and compression of its surrounding neurovascular component, and aggravation of symptoms. We present a case of unilateral sudden hearing loss possibly developing from an arachnoid cyst in the posterior cranial fossa with a review of literatures.