비전정에 발생한 혈관평활근종 1예

황세환,정주용,정덕희,김준모 대한비과학회 2008 Journal of rhinology Vol.15 No.2

Angioleiomyoma is an uncommon benign tumor composed of smooth muscle cells and vascular endotheliums. It is common in the uterus and the gastrointestinal tract but rare in the head and neck. This neoplasm is extremely rare in the nasal cavity, accounting for less than 1% of all vascular leiomyomas. The tumor has a benign nature and the recurrence of tumor is rare and complete removal is the treatment of choice. We present a case of angioleiomyoma which involves the nasal vestibule and was excised by a sublabial approach. Angioleiomyoma is an uncommon benign tumor composed of smooth muscle cells and vascular endotheliums. It is common in the uterus and the gastrointestinal tract but rare in the head and neck. This neoplasm is extremely rare in the nasal cavity, accounting for less than 1% of all vascular leiomyomas. The tumor has a benign nature and the recurrence of tumor is rare and complete removal is the treatment of choice. We present a case of angioleiomyoma which involves the nasal vestibule and was excised by a sublabial approach.

Anatomical Analysis of Intraorbital Structures Regarding Sinus Surgery Using Multiplanar Reconstruction of Computed Tomography Scans

황세환,박찬순,조진희,김수환,김병국,강준명 대한이비인후과학회 2013 Clinical and Experimental Otorhinolaryngology Vol.6 No.1

Objectives. This study aimed to investigate the anatomy of the intraorbital structures regarding to endoscopic sinus surgery and external frontal sinus surgery analyzing computer tomography (CT) scans. Methods. The CT scans of 100 patients were retrospectively evaluated. The anatomic relationships between the intraorbital structures and paranasal structures were measured using multiplanar reconstruction of the CT scan. Results. The mean distances from the medial orbital floor (MOF) to the intraorbital structures were measured at the depth of the anterior ethmoid (AE), basal lamella (BL), and midportion of posterior ethmoid (PE) in the coronal planes respectively. The mean distances from the MOF to the medial rectus muscle and inferior rectus muscle at the depth of AE were approximately 8 mm and those distances in the BL and PE decreased rapidly. The mean distances from the MOF to the infraorbital nerve at the depth of the AE and BL were approximately more than 10 mm. The mean distances from the vertical axis, which passed through the MOF, to the superior oblique muscle and optic nerve at the depth of the PE were approximately 5 mm medially and 1 mm laterally. In addition, the mean distance from the midline to the trochlea of the superior oblique muscle was approximately 15 mm. Conclusions. Those measurements provide spatial information on the placements of the extraocular muscles within the orbit. The measurements will contribute to the avoidance of orbital complications during sinus surgery

고파랑 대수심 지역에서의 BOX 격자형 DCM 공법 적용사례

황세환,김종석,김명호,양구승,허노영,Hwang, Se-Hwan,Kim, Jong-Seok,Kim, Myeong-Ho,Yang, Gu-Seung,Heo, No-Yeong 한국지반공학회 2014 지반 : 한국지반공학회지 Vol.30 No.3

상악동에서 발생한 혼합형 혈관종 1예

황세환,정연민,이호석,강준명 대한이비인후과학회 2014 대한이비인후과학회지 두경부외과학 Vol.57 No.6

A hemangioma is a benign tumor, which occurs mostly on the skin of the head and neck, but it is relatively rare in the nasal cavity. We experienced a case of a mixed hemangioma originating from right maxillary sinus. A 14-year-old female was presented with frequent epistaxis and progressive right-sided nasal obstruction for 5 month. A physical examination revealed a large polypoid reddish mass in the right nasal cavity. After preoperative embolization, surgical resection was performed via endoscopic and canine fossa approach and the result of surgery was successful. We report this case with a review of literatures. Korean J Otorhinolaryngol-Head Neck Surg 2014;57(6):403-6

암버력 쌓기 모형실험에 의한 최적 암버력 쌓기 공법 제시

황세환,우동찬,손의권,최명진 한국지반공학회 2004 지반 : 한국지반공학회지 Vol.20 No.4

암쌓기에 있어서 재료의 입경 분포 및 시공형태는 시공성과 시공 후 토체의 안정성에 큰 영향을 미친다. 그중 암버력을 쌓기 재료로 사용하여 시공하는 경우에 대해서는 일반적인 쌓기의 경우와 다른 시공법이 제안되어 있다. 최근 발주되는 턴키설계 규모의 토목 사업에서는 터널 및 사면 절취 등의 과정에서 암버력이 많이 생산되고 그것을 활용하여 공사구간의 절취 구간에 사용하는 방안이 일반화되었다.

비강내 반전성 유두종과 동반된 상악동 내의 심상성 사마귀 1예

황세환,유동준,손혜림,강준명 대한이비인후과학회 2012 대한이비인후과학회지 두경부외과학 Vol.55 No.3

Verruca vulgaris in the nasal cavity is derived from the stratified squamous epithelium. It is commonly seen in the nasal vestibule and characterized by exophytic proliferation and extensive surface keratinization. Recently, we observed a case of verruca vulgaris occupying the right maxillary sinus coexisting with an inverted papilloma in the nasal cavity. Two separate masses in the nasal cavity and maxillary sinus were removed by endoscopic surgery. To our knowledge, this is the first reported case of verruca vulgaris involving the maxillary sinus coexisting with an inverted papilloma in the nasal cavity.

다방향 고파랑 대수심 지역에서의 BOX 격자형 DCM 공법 적용사례

황세환,김종석,김지환,양구승,허노영 한국지반신소재학회 2014 한국지반신소재학회지 Vol.13 No.2

What is the Relationship between the Localization of Maxillary Fungal Balls and Intranasal Anatomic Variations?

황세환,강준명,조진희,김병국 대한이비인후과학회 2012 Clinical and Experimental Otorhinolaryngology Vol.5 No.4

Objectives. Although the mechanisms underlying the initiation and maintenance of inflammation in unilateral maxillary fungal balls (FBs) are poorly understood, the relationship between intranasal anatomy and maxillary FB is thought to play an important role. The aim of this study was to investigate the relationship between anatomic variations and FB. Methods. We enrolled 140 patients who were composed of 56 patients with FB, 56 patients with unilateral chronic rhinosinusitis (CRS), and 28 patients with no sinus disease. Computed tomography scans were retrospectively analyzed to identify and compare the associated nasal anatomic abnormalities. To measure the volume of the nasal cavity and middle meatus, computed tomography scans were reconstructed into three-dimensional images. Results. The relatively larger volume of the middle meatus was associated with the localization of the FB in contrast with the CRS. However, the nasal-cavity volume, nasal valve area, and nasal septal deviation were not significantly associated with localization of FB. The mean volumetric and areal measurements such as nasal cavity, middle meatus, and nasal valve in FB-ipsilateral sides were not significantly different from those in contralateral sides as well as other groups. Conclusion. The middle meatus bears the major part of the inspiratory nasal airflow, and its volume may influence the occurrence of FB. Objectives. Although the mechanisms underlying the initiation and maintenance of inflammation in unilateral maxillary fungal balls (FBs) are poorly understood, the relationship between intranasal anatomy and maxillary FB is thought to play an important role. The aim of this study was to investigate the relationship between anatomic variations and FB. Methods. We enrolled 140 patients who were composed of 56 patients with FB, 56 patients with unilateral chronic rhinosinusitis (CRS), and 28 patients with no sinus disease. Computed tomography scans were retrospectively analyzed to identify and compare the associated nasal anatomic abnormalities. To measure the volume of the nasal cavity and middle meatus, computed tomography scans were reconstructed into three-dimensional images. Results. The relatively larger volume of the middle meatus was associated with the localization of the FB in contrast with the CRS. However, the nasal-cavity volume, nasal valve area, and nasal septal deviation were not significantly associated with localization of FB. The mean volumetric and areal measurements such as nasal cavity, middle meatus, and nasal valve in FB-ipsilateral sides were not significantly different from those in contralateral sides as well as other groups. Conclusion. The middle meatus bears the major part of the inspiratory nasal airflow, and its volume may influence the occurrence of FB.

비용종 환자에서 포도상구균 외독소에 대한 말초혈액 단핵구의 반응

황세환,신지현,조진희,김수환,김병국,강준명 대한비과학회 2010 Journal of rhinology Vol.17 No.2

Background and Objectives:Superantigens such as Staphylococcus aureus exotoxin (SE) have been implicated in the pathogenesis of chronic rhinosinusitis with nasal polyposis (NP). The aim of this study was to determine the immunologic response of peripheral blood mononuclear cells (PBMCs) to staphylococcal exotoxin B (SEB) in patients with NP. Methods:The interleukin (IL)-4, IL-5, and interferon-γ (IFN-γ) responses of PBMCs to nonspecific mitogens such as phylohemagglutin (PHA) and SEB were examined in 24 NP patients and 16 control subjects. The presence or absence of atopy and asthma was determined to evaluate the correlation of these conditions with the levels of cytokines. Results:PBMCs from the NP patients were more likely to produce IL-4 and IL-5 in response to SEB than those from controls. There was no difference in the mitogen-induced cytokine responses between NP patients and controls. SEB-induced IL-5 and IL-4 levels were higher in patients with NP with asthma than in patients with NP without asthma. Conclusion:Patients with NP show an exaggerated Th2 cytokine response of PBMCs to SEB.

수면호흡장애가 있는 소아의 타액 알파 아밀라아제수준과 심박동률 변이도 간 상관관계

황세환,이흥구,김래형,이수형,고기범,박찬순 대한비과학회 2016 Journal of rhinology Vol.23 No.1

Background and Objectives: The aim of this study was to evaluate the relationship between salivary alpha-amylase (sAA) and heart rate variability (HRV) indices in SDB children based on objective parameters of polysomnography (PSG). Materials and Method: This prospective study enrolled 67 children who underwent a physical examination and full-attended in-lab PSG with continuous electrocardiographic signal. The sAA were measured at night before PSG and in the early morning after PSG. Results: The subjects were divided into control [n=26, apnea-hypopnea index (AHI)≤1] and obstructive sleep apnea syndrome (OSAS, n=41, AHI>1) groups; the OSAS group was subdivided into mild (1<AHI≤5), moderate (5<AHI≤10), and severe (10<AHI) groups. The severe OSAS group was significantly different from the control and other OSAS subgroups in terms of the ratio between the low- and high-frequency components (LF/HF ratio) among the HRV indices. The LF/HF ratio was positively correlated with the sAA ratio and sAA subtraction (r=0.271; r=0.347). Conclusion: TAlthough both HRV and sAA were useful methods of predicting severe OSAS in children, a weak correlation between HRV and sAA was shown in pediatric OSAS subjects. Therefore, HRV and sAA may be independent parameters revealing different aspects of pediatric OSAS.