1.A Novel Case of Extreme Thrombocytosis in Acute Myeloid Leukemia Associated With Isochromosome 17q and Copy Neutral Loss of Heterozygosity.
Eunkyoung YOU ; Sun Young CHO ; John Jeongseok YANG ; Hee Joo LEE ; Woo In LEE ; Juhie LEE ; Kyung Sam CHO ; Eun Hae CHO ; Tae Sung PARK
Annals of Laboratory Medicine 2015;35(3):366-369
2.Prognostic Significance of Initial Platelet Counts and Fibrinogen Level in Advanced Non-Small Cell Lung Cancer.
Kyung Hee KIM ; Tae Yun PARK ; Ji Yeun LEE ; Sang Min LEE ; Jae Joon YIM ; Chul Gyu YOO ; Young Whan KIM ; Sung Koo HAN ; Seok Chul YANG
Journal of Korean Medical Science 2014;29(4):507-511
Thrombocytosis and coagulation systems activation are commonly associated with disease progression and are suggested poor prognostic factors in patients with malignancies. This study aimed to investigate the prevalence and prognostic significance of thrombocytosis and elevated fibrinogen levels in patients with advanced non-small cell lung cancer (NSCLC). Initial platelet counts and fibrinogen levels were reviewed in 854 patients with histologically proven NSCLC. Thrombocytosis was defined as platelet counts > 450 x 10(9)/L. A serum fibrinogen level > 4.5 g/L was considered high. At the time of diagnosis, initial platelet counts and serum fibrinogen levels were evaluated before treatment. Clinicopathologic data including histological type, tumor, node, metastasis (TNM) stage, performance status, treatment method, and survival time were evaluated. Initial thrombocytosis was found in 6.9% of patients, and elevated fibrinogen levels were found in 55.1% of patients. Patients with thrombocytosis had a significantly poorer prognosis than patients with normal platelet counts (P < 0.001). In multivariate survival analysis, thrombocytosis was an independent prognostic factor (P < 0.001). An elevated serum fibrinogen level was associated with poor prognosis (P < 0.001). In conclusion, initial thrombocytosis and a high fibrinogen level are independent factors for predicting poor prognosis in patients with advanced NSCLC.
Aged
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Blood Platelets/*cytology
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Carcinoma, Non-Small-Cell Lung/*diagnosis/mortality/pathology
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Female
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Fibrinogen/*analysis
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Humans
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Lung Neoplasms/*diagnosis/mortality/pathology
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Male
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Middle Aged
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Neoplasm Staging
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Platelet Count
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Prognosis
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Retrospective Studies
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Survival Rate
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Thrombocytosis/complications/diagnosis
3.Cholestatic Hepatitis and Thrombocytosis in a Secondary Syphilis Patient.
Gi Hyun KIM ; Byeong Uk KIM ; Ju Hee LEE ; Yong Heok CHOI ; Hee Bok CHAE ; Seon Mee PARK ; Sei Jin YOUN ; Ji Yeoun LEE ; Tae Young YOON ; Rohyun SUNG
Journal of Korean Medical Science 2010;25(11):1661-1664
The incidence of acute hepatitis in syphilis patient is rare. First of all, our patient presented with hepatitis comorbid with thrombocytosis. To our knowledge, this is only the second report of syphilitic hepatitis with thrombocytosis. The 42-yr-old male complained of flulike symptoms and skin eruptions on his palms and soles. Laboratory findings suggested an acute hepatitis and thrombocytosis. Serologic test results were positive for VDRL. He recovered from his symptoms and elevated liver related enzymes with treatment. Because syphilitic hepatitis can present without any typical signs of accompanying syphilis, syphilis should be considered as a possible cause in acute hepatitis patients.
Acute Disease
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Adult
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Alkaline Phosphatase/blood
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Bilirubin/blood
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Epidermis/pathology
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Hepatitis/*diagnosis/etiology/pathology
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Humans
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Jaundice
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Male
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Penicillin G Benzathine/therapeutic use
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Syphilis/*complications
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Syphilis Serodiagnosis
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Thrombocytosis/*etiology
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Tomography, X-Ray Computed
4.Screening PCR Versus Sanger Sequencing: Detection of CALR Mutations in Patients With Thrombocytosis.
Ji Hun JEONG ; Hwan Tae LEE ; Ja Young SEO ; Yiel Hea SEO ; Kyung Hee KIM ; Moon Jin KIM ; Jae Hoon LEE ; Jinny PARK ; Jun Shik HONG ; Pil Whan PARK ; Jeong Yeal AHN
Annals of Laboratory Medicine 2016;36(4):291-299
BACKGROUND: Mutations in calreticulin (CALR) have been reported to be key markers in the molecular diagnosis of myeloid proliferative neoplasms. In most previous reports, CALR mutations were analyzed by using Sanger sequencing. Here, we report a new, rapid, and convenient system for screening CALR mutations without sequencing. METHODS: Eighty-three bone marrow samples were obtained from 81 patients with thrombocytosis. PCR primers were designed to detect wild-type CALR (product: 357 bp) and CALR with type 1 (product: 302 bp) and type 2 mutations (product: 272 bp) in one reaction. The results were confirmed by Sanger sequencing and compared with results from fragment analysis. RESULTS: The minimum detection limit of the screening PCR was 10 ng for type 1, 1 ng for type 2, and 0.1 ng for cases with both mutations. CALR type 1 and type 2 mutants were detected with screening PCR with a maximal analytical sensitivity of 3.2% and <0.8%, respectively. The screening PCR detected 94.1% (16/17) of mutation cases and showed concordant results with sequencing in the cases of type 1 and type 2 mutations. Sanger sequencing identified one novel mutation (c.1123_1132delinsTGC). Compared with sequencing, the screening PCR showed 94.1% sensitivity, 100.0% specificity, 100.0% positive predictive value, and 98.5% negative predictive value. Compared with fragment analysis, the screening PCR presented 88.9% sensitivity and 100.0% specificity. CONCLUSIONS: This screening PCR is a rapid, sensitive, and cost-effective method for the detection of major CALR mutations.
Adult
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Aged
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Base Sequence
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Bone Marrow/metabolism
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Calreticulin/chemistry/*genetics/metabolism
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DNA Mutational Analysis
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Female
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Follow-Up Studies
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Genotype
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Humans
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Janus Kinase 2/chemistry/genetics/metabolism
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Male
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Middle Aged
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Mutation
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Myeloproliferative Disorders/complications/*diagnosis/genetics
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Polymerase Chain Reaction
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Thrombocytosis/complications/*diagnosis
5.A Rare Case of Chronic Myelogenous Leukemia and Plasma Cell Myeloma in the Same Patient.
Sunhyun AHN ; Joon Seong PARK ; Jae Ho HAN ; Sung Ran CHO
Annals of Laboratory Medicine 2015;35(3):370-372
No abstract available.
Aged
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Antineoplastic Agents/therapeutic use
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Bone Marrow/pathology
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Fusion Proteins, bcr-abl/genetics/metabolism
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Humans
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Imatinib Mesylate/therapeutic use
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Leukemia, Myelogenous, Chronic, BCR-ABL Positive/complications/*diagnosis/drug therapy
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Leukocyte Count
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Male
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Multiple Myeloma/complications/*diagnosis/drug therapy
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Platelet Count
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Polymerase Chain Reaction
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Thrombocytosis/etiology