1.Pedunculated Fibrolipoma of the Hypopharynx: A Case Report
Tae Seong EO ; Hyang Ae SHIN ; Jeong Hae KIE ; Ji-Hoon KIM
Journal of the Korean Society of Laryngology Phoniatrics and Logopedics 2022;33(2):115-118
		                        		
		                        			
		                        			 Fibrolipomas are a rare microscopic variant of lipomas, characterized by mature adipose tissue interspersed with dense fibrous connective tissue. These lesions are rarely observed in the head and neck region and represent <0.6% of all benign tumors of the larynx and hypopharynx. Their clinical presentation depends on the location and size of lesions. Patients present with variable symptoms; however, fibrolipomas of the larynx and hypopharynx are clinically important because these tumors can cause unpredictable airway obstruction, particularly during general anesthesia induction. We present a case of a hypopharyngeal fibrolipoma in a 61-year-old patient with frequent dyspnea, dysphagia, and muffled voice. Laryngoscopy revealed a well-demarcated pedunculated ovoid mass involving the larynx. We performed laryngomicrosurgery using a carbon dioxide laser for surgical excision and subsequent evaluation confirmed the diagnosis of fibrolipoma. We report a case of hypopharyngeal fibrolipoma, together with a literature review. 
		                        		
		                        		
		                        		
		                        	
2.A Neonate Diagnosed with Wolff-Parkinson-White Syndrome Presenting with Cardiogenic Shock
Ji Eun HA ; Sun Hyang LEE ; Ga Young PARK ; Young-Lim SHIN ; Sung Shin KIM ; Mi-Ae JANG
Neonatal Medicine 2021;28(2):77-82
		                        		
		                        			
		                        			We present the case of a healthy 28-day-old female full-term neonate who was admitted to the neonatal intensive care unit for severe metabolic acidosis, hypoglycemia, and an initial sinus rhythm. The first diagnostic hypothesis was hypovolemic shock, and fluid resuscitation was started immediately. During fluid therapy, cardiovascular collapse occurred with supraventricular tachycardia. The latter was successfully treated with adenosine and beta-blockers. After 8 days, electrocardiography showed ventricular pre-excitation, and Wolff-Parkinson-White syndrome was diagnosed. A novel variant of the MYL2 gene that is related to hypertrophic cardiomyopathy and conduction defect was found after discharge. Cardiogenic shock should be considered, despite being a rare cause of shock in neonates.
		                        		
		                        		
		                        		
		                        	
3.A Neonate Diagnosed with Wolff-Parkinson-White Syndrome Presenting with Cardiogenic Shock
Ji Eun HA ; Sun Hyang LEE ; Ga Young PARK ; Young-Lim SHIN ; Sung Shin KIM ; Mi-Ae JANG
Neonatal Medicine 2021;28(2):77-82
		                        		
		                        			
		                        			We present the case of a healthy 28-day-old female full-term neonate who was admitted to the neonatal intensive care unit for severe metabolic acidosis, hypoglycemia, and an initial sinus rhythm. The first diagnostic hypothesis was hypovolemic shock, and fluid resuscitation was started immediately. During fluid therapy, cardiovascular collapse occurred with supraventricular tachycardia. The latter was successfully treated with adenosine and beta-blockers. After 8 days, electrocardiography showed ventricular pre-excitation, and Wolff-Parkinson-White syndrome was diagnosed. A novel variant of the MYL2 gene that is related to hypertrophic cardiomyopathy and conduction defect was found after discharge. Cardiogenic shock should be considered, despite being a rare cause of shock in neonates.
		                        		
		                        		
		                        		
		                        	
4.A multicenter study of interobserver variability in pathologic diagnosis of papillary breast lesions on core needle biopsy with WHO classification
Hye Ju KANG ; Sun Young KWON ; Ahrong KIM ; Woo Gyeong KIM ; Eun Kyung KIM ; Ae Ree KIM ; Chungyeul KIM ; Soo Kee MIN ; So Young PARK ; Sun Hee SUNG ; Hye Kyoung YOON ; Ahwon LEE ; Ji Shin LEE ; Hyang Im LEE ; Ho Chang LEE ; Sung Chul LIM ; Sun Young JUN ; Min Jung JUNG ; Chang Won JUNG ; Soo Youn CHO ; Eun Yoon CHO ; Hye Jeong CHOI ; So Yeon PARK ; Jee Yeon KIM ; In Ae PARK ; Youngmee KWON
Journal of Pathology and Translational Medicine 2021;55(6):380-387
		                        		
		                        			 Background:
		                        			Papillary breast lesions (PBLs) comprise diverse entities from benign and atypical lesions to malignant tumors. Although PBLs are characterized by a papillary growth pattern, it is challenging to achieve high diagnostic accuracy and reproducibility. Thus, we investigated the diagnostic reproducibility of PBLs in core needle biopsy (CNB) specimens with World Health Organization (WHO) classification. 
		                        		
		                        			Methods:
		                        			Diagnostic reproducibility was assessed using interobserver variability (kappa value, κ) and agreement rate in the pathologic diagnosis of 60 PBL cases on CNB among 20 breast pathologists affiliated with 20 medical institutions in Korea. This analysis was performed using hematoxylin and eosin (H&E) staining and immunohistochemical (IHC) staining for cytokeratin 5 (CK5) and p63. The pathologic diagnosis of PBLs was based on WHO classification, which was used to establish simple classifications (4-tier, 3-tier, and 2-tier).  
		                        		
		                        			Results:
		                        			On WHO classification, H&E staining exhibited ‘fair agreement’ (κ = 0.21) with a 47.0% agreement rate. Simple classifications presented improvement in interobserver variability and agreement rate. IHC staining increased the kappa value and agreement rate in all the classifications. Despite IHC staining, the encapsulated/solid papillary carcinoma (EPC/SPC) subgroup (κ = 0.16) exhibited lower agreement compared to the non-EPC/SPC subgroup (κ = 0.35) with WHO classification, which was similar to the results of any other classification systems.  
		                        		
		                        			Conclusions
		                        			Although the use of IHC staining for CK5 and p63 increased the diagnostic agreement of PBLs in CNB specimens, WHO classification exhibited a higher discordance rate compared to any other classifications. Therefore, this result warrants further intensive consensus studies to improve the diagnostic reproducibility of PBLs with WHO classification. 
		                        		
		                        		
		                        		
		                        	
5.A Case of Myxoid Liposarcoma of Neck
Kyuin LEE ; Jeong Hae KIE ; Hyang-Ae SHIN ; Ji-Hoon KIM
Korean Journal of Head and Neck Oncology 2021;37(2):71-75
		                        		
		                        			
		                        			 Liposarcoma is a very rare malignant tumor affecting the head and neck area. Since it is an invasive and life-threatening disease, active treatments is necessary. However, differential it from lipoma, its corresponding benign counterpart, may be difficult. Herein, we report a rare case of posterior neck myxoid liposarcoma in a 72-year-old man who was initially misdiagnosed with lipoma, including a literature review of differential diagnosis between lipoma and liposarcoma. 
		                        		
		                        		
		                        		
		                        	
6.Enhanced alcohol degradation and hepatic protective effects of an Acetobacter Pasteurianus-derived product, CureZyme-ACE, in an acute intoxication rat model
Eun-Jong JEON ; Yun-Sang CHO ; Ae-Hyang KIM ; Jae-Min SHIM ; Yi-Soo KIM ; Zhe PIAO ; Young Chul SHIN ; Jungkee KWON
Laboratory Animal Research 2020;36(2):126-133
		                        		
		                        			
		                        			 Excessive alcohol consumption induces acute intoxication and various hepatic diseases. In this study, we investigated the effect of the CureZyme-ACE (CA), Acetobacter Pasteurianus (AP)-derived product, in acute intoxication rats. The ethanol and acetaldehyde levels of serum were lower in rats treated with CA than those who only treated ethanol. The activities of alcohol dehydrogenase and acetaldehyde dehydrogenase also recovered faster in the CA group than only-ethanol group. The transaminase levels (AST, ALT) in the CA group were significantly lower than only-ethanol group. In addition, Hepatic histological analyses and stomach wall were demonstrated that the CA-treated group recovered faster than only-ethanol group. With regard to most characteristics, we found that CA had dose-dependent effects. At high concentrations of CA, there were no differences in the tested parameters compared to those of normal rats. These findings indicate that CA reduces the serum alcohol concentration and some of the hepatic damage caused by alcohol intoxication. 
		                        		
		                        		
		                        		
		                        	
7.Analysis of PD-L1 expression in salivary duct carcinoma with its efficacy as a tumor marker
Yong Ju LEE ; Yoon Woo KOH ; Sun Och YOON ; Hyang Joo RYU ; Hye Ryun KIM ; Hyang Ae SHIN
Korean Journal of Head and Neck Oncology 2019;35(1):13-20
		                        		
		                        			
		                        			BACKGROUND/OBJECTIVES: Despite multiple approaches of treatments for salivary duct carcinoma, there has been a need for more successful treatment methods because of its poor prognosis. Treatment options like immunotherapy using new technologies have been attempted. Based on recent study results indicating that targeting programmed death receptors are effective in treating various cancers, this study aimed to identify the frequency of PD-L1 expression and its impact on survival rate in salivary duct carcinoma.MATERIALS #SPCHAR_X0026; METHODS: We studied 33 patients with salivary gland cancer who were available for histologic specimens. We examined the expression of PD-L1 in the tissues and analyzed the association with the survival rate and the association with various clinical parameters.RESULTS: According to this study and review of similar studies, we discovered that the expression of PD-L1 in salivary duct carcinoma was lower than other types of cancers. The impact of PD-L1 on survival rate also showed inconsistency in salivary duct carcinoma.CONCLUSION: Immunotherapy by PD-1/PD-L1 checkpoint blockade in salivary duct carcinoma needs further evaluation for clinical application.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Immunotherapy
		                        			;
		                        		
		                        			Prognosis
		                        			;
		                        		
		                        			Receptors, Death Domain
		                        			;
		                        		
		                        			Salivary Ducts
		                        			;
		                        		
		                        			Salivary Gland Neoplasms
		                        			;
		                        		
		                        			Survival Rate
		                        			
		                        		
		                        	
8.Change of Voice Quality before and after Treatment of Short-Term Therapy with Proton Pump Inhibitor in Laryngopharyngeal Reflux.
Ja Hyun LEE ; Hyang Ae SHIN ; Hyun Seung CHOI ; Chang Yong KIM ; Se Won JEONG ; Jung Hyun CHANG
Korean Journal of Otolaryngology - Head and Neck Surgery 2014;57(10):703-706
		                        		
		                        			
		                        			BACKGROUND AND OBJECTIVES: The aim of this study was to verify that voice analysis could be an alternate tool for the evaluation of proton pump inhibitor treatment of laryngopharyngeal reflux (LPR). SUBJECTS AND METHOD: Twenty-two patients with LPR symptoms underwent laryngoscopy, stroboscopy and their reflux finding index (RFI) were evaluated. Subjective reflux symptom scores (RSS) and voice handicap index (VHI) were completed at the baseline. All patients underwent voice analysis. Thereafter, patients had short-term proton pump inhibitor therapy for 6 weeks. The RFI, RSS, VHI and voice analysis were repeated during the last week of the treatment. RESULTS: RFI was improved and both RSS and VHI were improved after the treatment. RSS and VHI were significantly correlated. In voice analysis, shimmer significantly improved and harmony to noise ratio (HNR) also improved. CONCLUSION: Voice analysis can be indicators of treatment results of laryngopharyngeal reflux disease.
		                        		
		                        		
		                        		
		                        			Hoarseness
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Laryngopharyngeal Reflux*
		                        			;
		                        		
		                        			Laryngoscopy
		                        			;
		                        		
		                        			Noise
		                        			;
		                        		
		                        			Proton Pumps*
		                        			;
		                        		
		                        			Stroboscopy
		                        			;
		                        		
		                        			Voice
		                        			;
		                        		
		                        			Voice Quality*
		                        			
		                        		
		                        	
9.Cervical Sympathetic Chain Schwannoma Mimicking Carotid Body Tumor.
Sang Chul PARK ; Yong Ju LEE ; Yee Jeong KIM ; Hyang Ae SHIN
Korean Journal of Otolaryngology - Head and Neck Surgery 2014;57(7):473-476
		                        		
		                        			
		                        			Schwannoma arising from cervical sympathetic chain is relatively uncommon and can be occasionally misdiagnosed as carotid body tumor. On MR images, schwannoma shows generally hypointense features on the T1-weighted images and hyperintense features on the T2-weighted images. Occasionally, however, contrast administration, which lets schwannoma show marked enhancement, may make it difficult to differentiate schwannoma from carotid body tumor. A 41-year-old woman presented a neck mass on the left. MR images of the neck and carotid angiography revealed a well-enhancing ovoid tumor, which separated the internal carptod arteries from the external carotid arteries at the level of carotid bifurcation. Complete tumor resection was performed and histopathology findings confirmed a schwannoma originating from the sympathetic chain. Postoperatively, miosis and facial anhydrosis of the left side were noted without ptosis, enophthalmos or other neurologic deficits. We report this case with a review of the literatures.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Angiography
		                        			;
		                        		
		                        			Arteries
		                        			;
		                        		
		                        			Carotid Artery, External
		                        			;
		                        		
		                        			Carotid Body Tumor*
		                        			;
		                        		
		                        			Enophthalmos
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Linear Energy Transfer
		                        			;
		                        		
		                        			Miosis
		                        			;
		                        		
		                        			Neck
		                        			;
		                        		
		                        			Neurilemmoma*
		                        			;
		                        		
		                        			Neurologic Manifestations
		                        			
		                        		
		                        	
10.A Strategy Toward Reconstructing the Healthcare System of a Unified Korea.
Yo Han LEE ; Seok Jun YOON ; Seok Hyang KIM ; Hyun Woung SHIN ; Jin Yong LEE ; Beomsoo KIM ; Young Ae KIM ; Jangho YOON ; Young Seok SHIN
Journal of Preventive Medicine and Public Health 2013;46(3):134-138
		                        		
		                        			
		                        			This road map aims to establish a stable and integrated healthcare system for the Korean Peninsula by improving health conditions and building a foundation for healthcare in North Korea through a series of effective healthcare programs. With a basic time frame extending from the present in stages towards unification, the roadmap is composed of four successive phases. The first and second phases, each expected to last five years, respectively, focus on disease treatment and nutritional treatment. These phases would thereby safeguard the health of the most vulnerable populations in North Korea, while fulfilling the basic health needs of other groups by modernizing existing medical facilities. Based on the gains of the first two phases, the third phase, for ten years, would prepare for unification of the Koreas by promoting the health of all the North Korean people and improving basic infrastructural elements such as health workforce capacity and medical institutions. The fourth phase, assuming that unification will take place, provides fundamental principles and directions for establishing an integrated healthcare system across the Korean Peninsula. We are hoping to increase the consistency of the program and overcome several existing concerns of the current program with this roadmap.
		                        		
		                        		
		                        		
		                        			Delivery of Health Care/methods/*organization & administration/standards
		                        			;
		                        		
		                        			Health Care Sector
		                        			;
		                        		
		                        			Health Manpower
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Nutrition Assessment
		                        			;
		                        		
		                        			Republic of Korea
		                        			
		                        		
		                        	
            
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