Patterns of Regional Metastasis in Patients with Periorbital Cancer / 대한이비인후과학회지

BACKGROUND AND OBJECTIVES: To identify patterns of regional metastasis according to primary tumor location in patients with malignant periorbital tumor. SUBJECTS AND METHOD: We retrospectively reviewed the medical records of the patients diagnosed with periorbital malignant tumors between 1997 and 2008. We analyzed demographic data, pathologic diagnosis, primary tumor location, lymph node metastasis and recurrences. RESULTS: Ninety-five patients with periorbital cancer were reviewed. Amongst them, 16 patients (M : F=7 : 9, mean age: 57.0 years) had regional metastasis. The follow-up duration of 16 patients was 46.2 months on the average. Nine tumors were located in the medial half, two tumors in the lateral half and five tumors in both halves. The parotid gland was the most common regional metastatic site regardless of primary tumor location, and whether or not medially located. CONCLUSION: The parotid gland lymph node group is crucial for medially located periorbital tumor as well as for laterally located one. Once a malignant periorbital tumor is diagnosed, the whole cervical and parotid lymph nodes should be evaluated carefully.

Change of Nasal Dimension and Resistance with Aging in Korean / 대한이비인후과학회지

BACKGROUND AND OBJECTIVES: It is often observed that the nasal cavity becomes atrophic with old age. However, there is no exact data that prove senile atrophic changes in the nasal cavity. Thus we evaluated the effect of aging on the dimension and the resistance of the nasal cavity. SUBJECTS AND METHOD: One hundred twelve healthy subjects free of nasal diseases were included in this study. Acoustic rhinometry and rhinomanometry were performed before and after nasal decongestion. The subjects were classified into 6 age groups and cross-sectional area (CSA) measured by acoustic rhinometry and the total nasal resistance were analyzed by rhinomanometry among each group. RESULTS: The average value of CSA at the nasal valve area increased slightly with age. However, there was no significant difference before and after nasal decongestion. The average values of CSA at the attachment of the inferior turbinate before and after decongestion were on the increase with age. However, the difference of CSA between pre- and post-decongestion did not change significantly with age. Rhinomanometry showed that nasal resistance markedly decreased from twenties and thirties but did not change significantly after the thirty decade. CONCLUSION: The dimension of nasal cavity increases and the nasal resistance decreases with age. The increased dimension of the nasal cavity in old age might be attributed to the structural change such as bony atrophy rather than mucosal change.

A Case of Transfusion-related Acute Lung Injury / 대한수혈학회지

Transfusion-related acute lung injury (TRALI) is defined as a new episode of acute lung injury that occurs during or within 6 hours of a completed transfusion, which has been the leading cause of transfusion-related death. We report a case of TRALI in a 63-year old man with alcoholic liver disease. He developed hypoxemia and non-cardiogenic pulmonary edema after red blood cell transfusion. Given an oxygen support, he recovered after 4 days.

Treatment of Well-differentiated Thyroid Carcinoma with Aerodigestive Tract Invasion / 대한내분비외과학회지

PURPOSE: Well differentiated thyroid carcinomas are mostly curable diseases. Invasion of aerodigestive tract by thyroid carcinoma is rare. However, it is considered as a poor prognostic indicator of survival. Some studies showed that local invasion of thyroid carcinoma was the cause of death in many patients. Therefore, adequate local control of the tumor is critical to avoid the mortality as well as the morbidity of the disease. To find proper and adequate treatment modality of locally invasive thyroid carcinoma, we evaluated treatment modalities and outcomes in the patients with thyroid carcinoma with invasion of aerodigestive tract. METHODS: Forty patients with thyroid carcinoma invading aerodigestive tract who were treated from July 1989 through July 2002 were reviewed retrospectively. RESULTS: Direct intraluminal invasion of the thyroid carcinoma requires definitive resection of the aerodigestive tract. In case that the extent of tumor was thought to be limited to perichondrium or extraluminal invasion, tracheal shaving procedure was performed. Five-year and 10-year local control rates were 81.6% and 57.4%, respectively. Disease-specific survival rates of 5-year and 10-year were 90.1% and 81.1%, respectively. CONCLUSION: For the successful treatment of invasive thyroid carcinoma, the resection of the functional structures or the aerodigestive tract should be determined prudently according to the presence of the intraluminal invasion.

Vestibular Evoked Myogenic Potential Generated by 500 Hz Tone Burst in Unilateral Peripheral Vestibulopathy

BACKGROUND AND OBJECTIVES:Vestibular evoked myogenic potential (VEMP) has become a valuable diagnostic tool evaluating the integrity of sacculocollic reflex and has been done using click sound in most previous clinical trials. This study aims to investigate VEMP responses generated by 500 Hz tone burst in unilateral peripheral vestibulopathy and compare the response with caloric test and subjective visual vertical (SVV). MATERIALS AND METHOD:Clinical records of 37 patients (18 men and 19 women, aged 14-80 years) with unilateral peripheral vestibulopathy were reviewed. Diagnoses were Meniere's disease (n=13), vestibular schwannoma (n=4) and acute peripheral unilateral vestibulopathy (n=20). They underwent 500Hz tone burst VEMP, caloric test and SVV test. Thirteen healthy volunteers (26 ears, 8 men and 5 women, 25~41 years) with normal hearing were enrolled as control group. RESULTS:VEMP response was present in every control ear using 500 Hz tone burst stimuli. In Meniere's disease, VEMPs were positive in 57% (4/7) of patients with abnormal caloric response group and 83% (5/6) with normal caloric response. In acute peripheral vestibulopathy, VEMPs were positive in 47% (9/19) of patients with abnormal caloric response, 0% (0/1) with normal caloric response. The average of CP (canal paresis) in positive VEMP group was 62.4% and that in negative VEMP group was 48.2% (P>0.05). CONCLUSION:Reliable and reproducible test results can be obtained using 500 Hz tone burst stimuli. VEMP results were not in concordance with other vestibular tests, which reflects the dynamic process of dizziness and variable extent of pathology in each case.