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A Case of False-negative Malaria Rapid Diagnostic Test Induced by Treatment with Doxycycline

Lim JH, Baek EJ

  • Lab Med Online.
  • 2019 Jul;9(3):194-196.
  • doi: 10.3343/lmo.2019.9.3.194
Rapid diagnostic tests (RDTs) for malaria using antibodies against pan-Plasmodium antigen lactate dehydrogenase (pLDH) are commonly used for malaria diagnosis. The level of malaria parasitemia determined by peripheral blood smears...
Usefulness of Chromosomal Microarray in Hematologic Malignancies: A Case of Aggressive NK-cell Leukemia with 1q Abnormality

Chung YN, Kim HN, Lee SR, Sung HJ, Nam MH

  • Lab Med Online.
  • 2019 Jul;9(3):189-193.
  • doi: 10.3343/lmo.2019.9.3.189
A variety of clonal cytogenetic abnormalities have been reported in aggressive natural killer (NK)-cell lymphoma and leukemia. Recent chromosomal microarray studies have shown both gain and loss of 1q and...
Unique Red Blood Cell Morphology Detected in a Patient with Myelodysplastic Syndrome by Three-dimensional Refractive Index Tomography

Koo SE, Jang S, Park CJ, Cho YU, Park Y

  • Lab Med Online.
  • 2019 Jul;9(3):185-188.
  • doi: 10.3343/lmo.2019.9.3.185
The three-dimensional (3-D) shape of erythrocytes is strongly associated with various diseases. However, conventional optical imaging approaches with Wright's staining only provide information on two-dimensional morphology. Here, we employed optical...
The First Case of Otitis in Korea Caused by Brevibacterium otitidis

Mun SH, Lee AJ, Kim SG, Jeon CH, Park CG, Suh HS

  • Lab Med Online.
  • 2019 Jul;9(3):181-184.
  • doi: 10.3343/lmo.2019.9.3.181
Brevibacterium spp. are gram-positive rods that are considered to be strictly nonpathogenic, and a very few cases of their infection in humans have been reported. In this study, we report...
A Case of Catabacter hongkongensis and Alistipes indistinctus Isolated from Blood Cultures of a Patient with Acute Appendicitis

Ryu J, Kim Y, Lee J, Cho SY, Park TS, Lee HJ

  • Lab Med Online.
  • 2019 Jul;9(3):177-180.
  • doi: 10.3343/lmo.2019.9.3.177
Catabacter hongkongensis is an anaerobic gram-positive coccobacillus that was first isolated in Hong Kong. It is infectious and causes high mortality in patients with rare but underlying diseases. Alistipes indistinctus...
A Case of Chronic Strongyloidiasis with Recurrent Hyperinfection

Park K, Kim MS, Chang J, Kim EJ, Yoo C, Kim MJ, Sung H, Kim MN

  • Lab Med Online.
  • 2019 Jul;9(3):171-176.
  • doi: 10.3343/lmo.2019.9.3.171
Strongyloides stercoralis is an intestinal nematode that often causes chronic diarrhea and may develop severe complicated form of hyperinfection or disseminated infection in immunocompromised patients. Here, we report a case...
Mycobacterium shimoidei Pulmonary Disease: The First Case in Korea

Shin S, Yoo IY, Jhun BW, Koh WJ, Ki CS, Lee NY, Huh HJ

  • Lab Med Online.
  • 2019 Jul;9(3):166-170.
  • doi: 10.3343/lmo.2019.9.3.166
Mycobacterium shimoidei is a nontuberculous mycobacterium (NTM), and is rarely reported as a pathogen causing the NTM pulmonary disease. We describe here the case of a 52-year-old male with symptoms...
A Questionnaire Survey on General Status and Opinions about Clinical Mass Spectrometric Analysis in Korea (2018)

Cho SE, Chae H, Park HD, Chun S, Lee YW, Yun YM, Song SH, Lee SG, Lee K, Song J, Lee SY, On behalf of the Clinical Mass Spectrometry Research Committee of Korean Society of Clinical Chemistry

  • Lab Med Online.
  • 2019 Jul;9(3):161-165.
  • doi: 10.3343/lmo.2019.9.3.161
The Clinical Mass Spectrometry Research Committee (CMSRC), in affiliation with the Korean Society of Clinical Chemistry (KSCC), conducted a questionnaire survey on opinions about the general status of clinical mass...
Evaluation of Noninvasive Liver Fibrosis Blood Markers in Patients with Chronic Hepatitis B and Hepatitis C

Lee JH, Cho J, Kim J, Uh Y, Youn KJ

  • Lab Med Online.
  • 2019 Jul;9(3):153-160.
  • doi: 10.3343/lmo.2019.9.3.153
BACKGROUND: Liver fibrosis evaluation is an important issue in chronic liver disease patients. We aimed to develop noninvasive liver fibrosis biomarkers based on transient elastography (TE, FibroScan®) through retrospective review...
False-positive Elevations in Carcinoembryonic Antigen Levels at a Health Screening Center

Chung S

  • Lab Med Online.
  • 2019 Jul;9(3):146-152.
  • doi: 10.3343/lmo.2019.9.3.146
BACKGROUND: Although routine screening of carcinoembryonic antigen (CEA) is not recommended for the early diagnosis of colorectal cancers, CEA levels are frequently measured in practice and during opportunistic health screening...
Evaluation of the Analytical Performance of Atellica CH 930 Automated Chemistry Analyzer

Kim D, Cho Y, Cho J, Kim SH, Lee SG, Kim JH

  • Lab Med Online.
  • 2019 Jul;9(3):133-145.
  • doi: 10.3343/lmo.2019.9.3.133
BACKGROUND: Recently, a new automated chemistry analyzer, Atellica CH930 (Siemens, Germany), was introduced. It automatically measures internal quality control (QC) materials according to a pre-determined schedule. For this purpose, the...
Large Unstained Cell, Blast Suspect and Delta Neutrophil Index ll Analyzed with Automated Hematology Analyzer as Parameters for the Prediction of Acute Leukemia Relapse

Hwang N, Kim YK, Suh JS

  • Lab Med Online.
  • 2019 Jul;9(3):126-132.
  • doi: 10.3343/lmo.2019.9.3.126
BACKGROUND: Here we investigated the clinical utilities of blast suspect, large unstained cell (LUC), delta neutrophil index ll (DN ll), and delta neutrophil index l (DN l), analyzed in peripheral...
Recommendation for the Peripheral Blood Cell Morphology Report

Kwon JA, Kim YG, Park G, Kim JM, Cho YU, Huh J, Kong SY, Han JY, Yoon SY

  • Lab Med Online.
  • 2019 Jul;9(3):115-125.
  • doi: 10.3343/lmo.2019.9.3.115
There is considerable heterogeneity in the peripheral blood smear reports across different diagnostic laboratories, despite following the guidelines published by the International Council for Standardization in Haematology (ICSH). As standardization...

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