Case report In Hwa Jeong, Gyu Dae Ahn, Namhee Kim, Kyung Hee Kim, Sang Dong Shin, Jin Yeong Han, Gwang Sook Woo Department of Laboratory Medicine, Dong-A University School of Medicine, Busan, Korea Corresponding to Gwang Sook Woo, E-mail: wizard1005@dau.ac.kr Ann Clin Microbiol 2020;23(3):149-153. https://doi.org/10.5145/ACM.2020.23.3.4Received on 13 January 2020, Revised on 23 February 2020, Accepted on 23 February 2020, Published on 20 September 2020.Copyright © Korean Society of Clinical Microbiology. Abstract Carnobacterium is a genus of gram-positive bacilli belonging to the family Lactobacillaceae. Generally, Carnobacterium species are considered nonpathogenic to humans and are mostly found in the natural environment, food, and food packaging. Furthermore, some Carnobacterium species play a bioprotective role in the food industry. Isolation of Carnobacterium from human blood or other sites, such as skin or abscess, has rarely been reported—there are only four published case reports worldwide, and none of them is from Korea. In all the

Case report PDF Kye-Hyung Kim1, Namhee Kim2, Kyung-Hwa Shin2, Shine Young Kim2, Chulhun L. Chang2, Jongyoun Yi2 Departments of 1Internal Medicine and 2Laboratory Medicine, Pusan National University School of Medicine, Yangsan, Korea Corresponding to Jongyoun Yi, E-mail: csm410@naver.com Ann Clin Microbiol 2014;17(3):99-103. https://doi.org/10.5145/ACM.2014.17.3.99Copyright © Korean Society of Clinical Microbiology. Abstract Aggregatibacter aphrophilus, a normal component of oral cavity flora, mostly causes infective endocarditis and only rarely causes spondylitis; no spondylitis cases have been previously reported in Korea. We report a case of pyogenic spondylitis due to A. aphrophilus without endocarditis. A 64-year-old man was admitted for back pain lasting 3 weeks. There was severe tenderness on lumbar spines but no fever. Laboratory evaluation showed leukocytosis and elevated C-reactive protein. Blood cultures were negative. Magnetic resonance imaging showed psoas abscess and vertebral inflammation. Pus was obtained by computerized tomography-guided aspiration from the psoas abscess and inoculated into blood culture bottles. After

Case report PDF Namhee Kim1, Hyun-Ji Lee2, Jongyoun Yi1, Su Eun Park3, Chulhun L. Chang2 1Department of Laboratory Medicine, Pusan National University Hospital, Busan, 2Department of Laboratory Medicine, Pusan National University Yangsan Hospital, Yangsan, 3Department of Pediatrics, Pusan National University Children’s Hospital, Yangsan, Korea Corresponding to Chulhun L. Chang, E-mail: cchl@pusan.ac.kr Ann Clin Microbiol 2017;20(1):17-20. https://doi.org/10.5145/ACM.2017.20.1.17Copyright © Korean Society of Clinical Microbiology. Abstract Tuberculosis can occur in various organ systems and may present with diverse manifestations. We report an unusual case of mediastinal tuberculoma in a 3-month-old boy who presented to the hospital after experiencing fever, cough, and progressive pneumonia for two weeks. The chest computed tomography scan indicated a mediastinal mass suggesting lymphoma. However, histological analysis confirmed that the mass was caused by tuberculosis. The present report describes the delayed diagnosis of a disease due to an uncommon presentation. Misdiagnosing unusual cases of tuberculosis results in treatment delays and may lead

Case report PDF Hyerim Kim1, Yun Seong Kim2, Kye-Hyung Kim2, Namhee Kim1, Hyung Hoi Kim1, Chulhun L. Chang1, Jongyoun Yi1 Departments of 1Laboratory Medicine and 2Internal Medicine, Pusan National University School of Medicine, Busan, Korea Corresponding to Jongyoun Yi, E-mail: socioliberal@yahoo.co.kr; Yun Seong Kim, E-mail: yskim@pusan.ac.kr Ann Clin Microbiol 2017;20(1):13-16. https://doi.org/10.5145/ACM.2017.20.1.13Copyright © Korean Society of Clinical Microbiology. Abstract The genus Gordonia is one of the mycolic acid-containing aerobic actinomycetes. This genus has 38 named species that are widespread in the natural environment; however, Gordonia species rarely cause human infections. A 76-year-old woman presented with cough and sputum for over 1 year and was suspected of having nontuberculous mycobacterial (NTM) lung disease. An NTM isolate from the sputum was initially identified as Mycobacterium lentiflavum or Mycobacterium genavense by genotypic identification targeting internal transcribed spacer (ITS). However, the isolate was finally confirmed as Gordonia otitidis by sequencing of 16S rRNA, gyrB and secA1 genes. In patients with suspected NTM lung disease, the etiologic agent

Case report PDF Tae Yeul Kim1*, Juyeon Jo2, Namhee Kim1,2, Hyunwoong Park1,2, Eun Youn Roh1,2, Jong Hyun Yoon1,2, Sue Shin1,2 1Department of Laboratory Medicine, Seoul National University College of Medicine, 2Department of Laboratory Medicine, Seoul National University Boramae Medical Center, Seoul, Korea Corresponding to Sue Shin, E-mail: jeannie@snu.ac.kr Ann Clin Microbiol 2019;22(2):50-54. https://doi.org/10.5145/ACM.2019.22.2.50Copyright © Korean Society of Clinical Microbiology. Abstract Facklamia hominis is a facultative anaerobic Gram- positive coccus generally displaying weak alpha-hemolysis and negativity for catalase and oxidase. Facklamia species are part of the normal flora of the female genitourinary tract and have been reported in invasive diseases such as meningitis and infective endocarditis, albeit rarely. A 67 year-old-man presented to hospital with a tender, erythematous epidermal cyst on the right side of his upper back. Simple excision of the cyst was performed and the pus was taken with a sterile swab for culture, yielding no growth. One week later, discharge was observed

PDF Original article Annals of Clinical Microbiology (Ann Clin Microbiol) 2020 September, Volume 23, Issue 3, pages 149-153. https://doi.org/10.5145/ACM.2020.23.3.4 In Hwa Jeong, Gyu Dae Ahn, Namhee Kim, Kyung Hee Kim, Sang Dong Shin, Jin Yeong Han, Gwang Sook Woo Department of Laboratory Medicine, Dong-A University School of Medicine, Busan, Korea Abstract Carnobacterium is a genus of gram-positive bacilli belonging to the family Lactobacillaceae. Generally, Carnobacterium species are considered nonpathogenic to humans and are mostly found in the natural environment, food, and food packaging. Furthermore, some Carnobacterium species play a bioprotective role in the food industry. Isolation of Carnobacterium from human blood or other sites, such as skin or abscess, has rarely been reported—there are only four published case reports worldwide, and none of them is from Korea. In all the reported cases, the patients reported contact with an aqueous environment or were administered nutrition via a parenteral route. Herein, we

Editorial Sunggyun Park1, Do-Hoon Kim1, Won-Mok Lee1, Jung-Sook Ha1, Dong-Seok Jeon1, Jae-Hee Lee2, Namhee Ryoo1 1Department of Laboratory Medicine, Keimyung University School of Medicine, 2Daegu Dongsan Hospital, Daegu, Korea Corresponding to Namhee Ryoo, E-mail: nhryoo@dsmc.or.kr Ann Clin Microbiol 2020;23(4):165-171. https://doi.org/10.5145/ACM.2020.23.4.1Received on 15 July 2020, Revised on 22 August 2020, Accepted on 21 September 2020, Published on 20 December 2020.Copyright © Korean Society of Clinical Microbiology. Abstract The first case of coronavirus disease 2019 (COVID-19) in Korea was reported in January 2020. As the secondary transmissions accelerated within the country, the government revised the outbreak alert for COVID-19 from attention to caution. Mid-February, when a massive outbreak was reported from a church in Daegu, our institution initiated testing for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). More than 300 laboratory tests were performed within the first 2 months, before the number of cases began to decline. Here, we describe our experience

Case report PDF Namhee Ryoo, Jung Sook Ha, Dong Seok Jeon, Jae Ryong Kim Department of Laboratory Medicine, Keimyung University School of Medicine, Daegu, Korea Corresponding to Namhee Ryoo, E-mail: nhryoo@dsmc.or.kr Ann Clin Microbiol 2002;5(2):147-150.Copyright © Korean Society of Clinical Microbiology. Abstract Although Malassezia furfur is normal skin flora causing superficial skin diseases, cases of fungemia have been reported recently in premature newborns or immunocompromised patients related to prolonged central venous catheterization for lipid supplementation. We report a case of M. furfur fungemia in a premature infant receiving intravenous lipid supplementation through central venous circulation. She was treated only with antifungal agents without removal of the catheter or discontinuation of lipid supplementation. Soon after, symptoms and signs of the patient seemed to be improved. However, central venous catheter was removed because of recurrent septicemia of Staphylococcus aureus and the culture of central venous catheter tip showed colonization of M. furfur. (Korean J Clin Microbiol 2002;5:147-150) Keywords Malassezia furfur,

Case report PDF Sung-Gyun Park1, Kyoung-Bo Kim1, Wonmok Lee1, Jung-Sook Ha1, Namhee Ryoo1, Dong-Seok Jeon1, Jae-Ryong Kim1, Hyun-Ah Kim2, Seong-Yeol Ryu2 Departments of 1Laboratory Medicine and 2Infectious Disease, Keimyung University School of Medicine, Daegu, Korea Corresponding to Namhee Ryoo, E-mail: nhryoo@dsmc.or.kr Ann Clin Microbiol 2015;18(1):33-36. https://doi.org/10.5145/ACM.2015.18.1.33Copyright © Korean Society of Clinical Microbiology. Abstract A 73-year-old man visited our hospital because of pain with swelling and redness on the right foot dorsum. He was diagnosed with liver cirrhosis and nodular hepatic cellular carcinoma. Lower extremity CT scan and MRI showed abscess formation in the right foot dorsum. Gram-negative cocci were recovered from the culture of drained pus at the site and identified as Neisseria skkuensis by 16S rRNA gene sequencing. Here, we report the first case of cellulitis due to N. skkuensis and provide a literature review. (Ann Clin Microbiol 2015;18:33-36) Keywords Cellulitis; Neisseria; RNA, Ribosomal, 16S; Sequence analysis