A Case of Papillary Intestinal Type Sinonasal Adenocarcinoma of the Nasal Cavity / 대한이비인후과학회지

Malignant tumors of the sinonasal tract are relatively rare and adenocarcinomas of various types account for 10% to 20% of primary malignancies of the nasal cavity and paranasal sinuses. According to the classification of World Health Organization, primary adenocarcinomas of the sinonasal tract can be initially classified as salivary and non-salivary types, and non-salivary types are further divided into intestinal and non-intestinal types. The authors experienced a case of papillary intestinal type sinonasal adenocarcinoma of the right nasal cavity in a 59-year-old woman, which was resected successfully via endoscopic approach. We present the clinical characteristics, pathology, treatment, and prognosis of the tumor with a review of the literature.

Cervical Vestibular Evoked Myogenic Potential and Ocular Vestibular Evoked Myogenic Potential in Patients With Vestibular Neuritis and Acute Viral Labyrinthitis / 대한평형의학회지

BACKGROUND AND OBJECTIVES: Vestibular neuritis predominantly affects the superior branch of the vestibular nerve, resulting in vertigo. Acute viral labyrinthitis occurs when an infection affects both vestibulo-cochlear nerve and labyrinth, resulting in hearing changes as well as vertigo. The purpose of study is to identify there is a difference of cervical vestibular evoked myogenic potentials (cVEMP) and ocular VEMP (oVEMP) in patients with vestibular neuritis and acute viral labyrinthitis. MATERIALS AND METHODS: cVEMP and oVEMP tests using 500-Hz tone-burst stimuli were performed on patients with vestibular neuritis and acute viral labyrinthitis. Pure tone audiometry, caloric test and subjective visual vertical (SVV) were performed in all patients. We compared the VEMP results, SVV, caloric test in patients with vestibular neuritis and acute viral labyrinthitis. RESULTS: Abnormal cVEMP responses were detected in 2 (20%) patients with vestibular neuritis and 5 (100%) patients with labyrinthitis. Abnormal oVEMP responses were detected in 9 patients (90%) with vestibular neuritis and 5 (100%) patients with labyrinthitis. oVEMP abnormalities is correlated with caloric test and subjective visual vertical in patients with vestibular neuritis and labyrinthits. CONCLUSION: Our results shows that the response of cVEMP and oVEMP between patients with vestibular neuritis and acute viral labyrinthitis is different. We can infer that oVEMP response to air-conducted sound is different vestibular origin compared to cVEMP and may originate from utricle.

Vestibular Function Test of Dizziness Patients by Vestibular Evoked Myogenic Potential / 대한평형의학회지

BACKGROUND AND OBJECTIVES: Because the saccule, next to the cochlea, is the second most frequent site of hydrops formation, we evaluated whether vestibular evoked myogenic potential (VEMP) responses can reflect the diagnosis and the stage of Meniere's disease. And we studied about other vestibular disease such as vestibular neuritis and benign paroxysmal positional vertigo. MATERIALS AND METHODS: Retrospectively, we analyzed the results of VEMP in 22 patients (12 men and 10 women) with unilateral definite Meniere's disease, 21 patients (5 men and 16 women) with vestibular neuritis, and 23 patient (4 men and 19 women) with benign paroxysmal positional vertigo (BPPV). All subjects underwent VEMP testing using ipsilateral 1 KHz-tone burst sound with 105 dB nHL. RESULTS: VEMP was present in 86% of Meniere affected ear. The latency of p13 of affected ears in patients with Meniere's disease, vestibular neuritis (VN), BPPV was not significantly prolonged than that of normal ears in the control group except left n23 latency in meniere's disease. In the patients with Meniere's disease, the amplitude-ratio was larger than that of the control group, statistically (p=0.006). And relationship was found in amplitude ratio among groups classified by the stage of Meniere's disease. CONCLUSION: This study shows that amplitude ratio of VEMP response is useful method to determine the severity and prognosis of Meniere's disease. We recommend VEMP to explain to the patient about severity of Meniere's disease quantitatively.

Prognosis of Hearing According to the Presence of Recurrent Vertigo in Meniere's Disease / 대한평형의학회지

BACKGROUND AND OBJECTIVES: In Meniere's disease, the relationship between the vertigo attacks and prognosis of hearing remains unclear. Our study aimed to elucidate the possible role of recurrent vertigo in the prognosis of hearing in Meniere's disease. MATERIALS AND METHODS: The medical records of 53 patients with definite Meniere's disease over 2 years follow-up were analyzed retrospectively and we analyzed the changes of vertigo and hearing over time. RESULTS: While 49% of patients who were treated conservatively experienced recurrent vertigo attacks, 40% of patients did not have an episode of vertigo during the follow-up. Worsening of hearing and fluctuation were found in about 30% and 26%, respectively. There is no obvious coincidence in the course of vertigo and hearing. CONCLUSION: The prognosis of hearing dose not depend on the the presence of recurrent vertigo in Meniere's disease.

A Case of Brown Tumor of the Maxilla Associated with Secondary Hyperparathyroidism / 대한이비인후과학회지

Brown tumors are focal bone lesions caused by increased osteoclastic activity and fibroblastic proliferation encountered in primary, or more rarely, secondary hyperparathyroidism. Ninety-two percent of the patients who undergo dialysis develop secondary hyperparathyroidism. Of these, approximately 1.5% develops brown tumors. We recently experienced a case of brown tumor of the left maxilla that occurred in association with secondary hyperparathyroidism in a 56-year-old female. We present the clinical characteristics, radiological and pathological findings, and treatment of this rare disease entity with a literature review.