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https://www.readbyqxmd.com/read/29332707/cutaneous-hemophagocytosis-clinicopathologic-features-of-21-cases
#1
Francesca Boggio, Viviana Lora, Carlo Cota, Amanda Pereira, Robert Müllegger, Lucia Prieto-Torres, Lorenzo Cerroni
BACKGROUND: Hemophagocytosis is well known in cytotoxic cutaneous T-cell lymphomas (CTCLs), in which it may represent a sign of hemophagocytic lymphohistiocytosis syndrome (HLHS), and is also typical of cutaneous Rosai-Dorfman disease (cRDD) (without prognostic relevance). Only rarely, has cutaneous hemophagocytosis (CH) been described in other skin conditions. OBJECTIVE: To characterize the clinicopathologic features of CH in skin biopsy specimens from patients with conditions other than CTCL or cRDD...
February 2018: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29326099/interleukin-18-diagnostically-distinguishes-and-pathogenically-promotes-human-and-murine-macrophage-activation-syndrome
#2
Eric S Weiss, Charlotte Girard-Guyonvarc'h, Dirk Holzinger, Adriana A de Jesus, Zeshan Tariq, Jennifer Picarsic, Eduardo J Schiffrin, Dirk Foell, Alexei A Grom, Sandra Ammann, Stephan Ehl, Tomoaki Hoshino, Raphaela Goldbach-Mansky, Cem Gabay, Scott W Canna
Hemophagocytic Lymphohistiocytosis (HLH) and Macrophage Activation Syndrome (MAS) are life-threatening hyperferritinemic systemic inflammatory disorders. Though profound cytotoxic impairment causes familial HLH (fHLH), the mechanisms driving non-fHLH and MAS are largely unknown. MAS occurs in patients with suspected rheumatic disease, but the mechanistic basis for its distinction is unclear. Recently, a syndrome of recurrent MAS with infantile enterocolitis caused by NLRC4 inflammasome hyperactivity highlighted the potential importance of Interleukin (IL)-18...
January 11, 2018: Blood
https://www.readbyqxmd.com/read/29319247/infection-associated-secondary-hemophagocytic-lymphohistiocytosis-in-sepsis-syndromes-a-tip-of-an-iceberg
#3
Arun Agarwal, Aakanksha Agarwal
Background: Hemophagocytic lymphohistiocytosis (HLH) is a rare, underdiagnosed, fatal and devastating hyperinflammatory syndrome that has gained increasing recognition over the past decade. Patients with HLH present with clinical and laboratory evidence of uncontrolled inflammation. Delay in diagnosis and management inevitably leads to a rapidly progressive and fatal course. In this case series, we present 7 cases of secondary HLH (sHLH) in adults with their presentation, course, and outcomes...
October 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29296904/soluble-interleukin-2-receptor-is-a-sensitive-diagnostic-test-in-adult-hlh
#4
Anna Hayden, Molly Lin, Sujin Park, Morris Pudek, Marion Schneider, Michael B Jordan, Andre Mattman, Luke Y C Chen
Serum soluble interleukin-2 receptor (sIL-2r) is an important disease marker in hemophagocytic lymphohistiocytosis (HLH), but there are no published data on its diagnostic value in adults. We conducted a single-center retrospective study of 78 consecutive adults who had sIL-2r measured for suspected HLH. Serum sIL-2r levels were measured by enzyme-linked immunosorbent assay (adult reference range, 241-846 U/mL). There were 38 patients with HLH and 40 with a non-HLH diagnosis (such as sepsis, liver disease, histiocyte disorders, autoimmune disease, leukemia, or lymphoma)...
December 12, 2017: Blood Advances
https://www.readbyqxmd.com/read/29296722/proliferation-through-activation-hemophagocytic-lymphohistiocytosis-in-hematologic-malignancy
#5
REVIEW
Eric J Vick, Kruti Patel, Philippe Prouet, Mike G Martin
Hemophagocytic lymphohistiocytosis (HLH) is a syndrome of cytokine-driven immune activation. Cardinal features include fever, hemophagocytosis, hepatosplenomegaly, lymphocytic infiltration, and hypercytokinemia that result in multisystem organ dysfunction and failure. Familial HLH is genetically driven, whereas secondary HLH (SHL) is caused by drugs, autoimmune disease, infection, or cancer. SHL is associated with worse outcomes, with a median overall survival typically of less than 1 year. This reflects difficulty in both diagnostic accuracy and in establishing reliable treatments, especially in cases of malignancy-induced SHL, which have significantly worse outcomes...
May 9, 2017: Blood Advances
https://www.readbyqxmd.com/read/29295642/clinical-characteristics-therapy-response-and-outcome-of-51-adult-patients-with-hematological-malignancy-associated-hemophagocytic-lymphohistiocytosis-a-single-institution-experience
#6
Fryderyk Lorenz, Monika Klimkowska, Ewa Pawłowicz, Agnes Bulanda Brustad, Martin Erlanson, Maciej Machaczka
Hemophagocytic lymphohistiocytosis (HLH) is an underdiagnosed but life-threatening syndrome of hyperinflammation often occurring in adults with hematological malignancies (hM-HLH). The aim of the study was to describe clinical characteristics, therapy response, and outcome of adults with hM-HLH. The study included 51 adults with hM-HLH aged 23-84 years. Hyperferritinemia ≥500 µg/L was present in 96% of patients. The serum concentration of sIL-2Rα ≥ 2400 U/mL was revealed in 94% of patients. Twenty-three patients (45%) responded to therapy and achieved remission of HLH...
January 3, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29291352/recurrent-ecsit-mutation-encoding-v140a-triggers-hyperinflammation-and-promotes-hemophagocytic-syndrome-in-extranodal-nk-t-cell-lymphoma
#7
Haijun Wen, Huajuan Ma, Qichun Cai, Suxia Lin, Xinxing Lei, Bin He, Sijin Wu, Zifeng Wang, Yan Gao, Wensheng Liu, Weiping Liu, Qian Tao, Zijie Long, Min Yan, Dali Li, Keith W Kelley, Yongliang Yang, Huiqiang Huang, Quentin Liu
Hemophagocytic syndrome (HPS) is a fatal hyperinflammatory disease with a poorly understood mechanism that occurs most frequently in extranodal natural killer/T cell lymphoma (ENKTL). Through exome sequencing of ENKTL tumor-normal samples, we have identified a hotspot mutation (c.419T>C) in the evolutionarily conserved signaling intermediate in Toll pathway (ECSIT) gene, encoding a V140A variant of ECSIT. ECSIT-V140A activated NF-κB more potently than the wild-type protein owing to its increased affinity for the S100A8 and S100A9 heterodimer, which promotes NADPH oxidase activity...
January 1, 2018: Nature Medicine
https://www.readbyqxmd.com/read/29279700/minimal-change-disease-as-initial-presentation-of-alk-positive-anaplastic-large-cell-lymphoma-in-a-pediatric-patient
#8
Karla Diaz, William Slayton, Nirupama Gupta
The association between nephrotic syndrome (NS), hemophagocytic lymphohistiocytosis (HLH), and certain paraneoplastic syndromes has been documented in the literature. However, nephrotic changes as part of paraneoplastic syndromes are rare in lymphoid malignancies, particularly in non-Hodgkin lymphoma. We report the sudden onset of acute renal failure and NS in a 14-year-old male who initially presented with HLH and was subsequently diagnosed with ALK-positive anaplastic large-cell lymphoma (ALCL). The treatment of ALCL reversed both the HLH and NS findings...
September 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/29258535/lytic-viral-replication-and-immunopathology-in-a-cytomegalovirus-induced-mouse-model-of-secondary-hemophagocytic-lymphohistiocytosis
#9
Ellen Brisse, Maya Imbrechts, Tania Mitera, Jessica Vandenhaute, Carine H Wouters, Robert Snoeck, Graciela Andrei, Patrick Matthys
BACKGROUND: Hemophagocytic lymphohistiocytosis (HLH) is a rare immunological disorder caused by unbridled activation of T cells and macrophages, culminating in a life-threatening cytokine storm. A genetic and acquired subtype are distinguished, termed primary and secondary HLH, respectively. Clinical manifestations of both forms are frequently preceded by a viral infection, predominantly with herpesviruses. The exact role of the viral infection in the development of the hemophagocytic syndrome remains to be further elucidated...
December 19, 2017: Virology Journal
https://www.readbyqxmd.com/read/29247988/interleukin-18-biological-properties-and-role-in-disease-pathogenesis
#10
REVIEW
Gilles Kaplanski
Initially described as an interferon (IFN)γ-inducing factor, interleukin (IL)-18 is indeed involved in Th1 and NK cell activation, but also in Th2, IL-17-producing γδ T cells and macrophage activation. IL-18, a member of the IL-1 family, is similar to IL-1β for being processed by caspase 1 to an 18 kDa-biologically active mature form. IL-18 binds to its specific receptor (IL-18Rα, also known as IL-1R7) forming a low affinity ligand chain. This is followed by recruitment of the IL-18Rβ chain. IL-18 then uses the same signaling pathway as IL-1 to activate NF-kB and induce inflammatory mediators such as adhesion molecules, chemokines and Fas ligand...
January 2018: Immunological Reviews
https://www.readbyqxmd.com/read/29245359/potential-killer-in-the-icu-severe-tuberculosis-combined-with-hemophagocytic-syndrome-a-case-series-and-literature-review
#11
Lulu Chen, Heng Weng, Hongyan Li, Jinbao Huang, Jianguang Pan, Yansheng Huang, Chenhui Ma
Hemophagocytic syndrome (HPS) is a life-threatening clinical syndrome that has various presentations, shows rapid progression and is associated with a high mortality. Clinical reports about pulmonary tuberculosis combined with respiratory failure accompanied by HPS are rare.HPS has no special clinical manifestations, and the main presentations include persistent fever, hepatosplenomegaly, hematocytopenia, and rash. In the Intensive Care Unit (ICU), the clinical manifestations of severe infection and secondary HPS overlap, thus there is often a delay in the diagnosis and treatment of HPS...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29242302/a-distinct-subtype-of-epstein-barr-virus-positive-t-nk-cell-lymphoproliferative-disorder-adult-patients-with-chronic-active-epstein-barr-virus-infection-like-features
#12
Keisuke Kawamoto, Hiroaki Miyoshi, Takaharu Suzuki, Yasuji Kozai, Koji Kato, Masaharu Miyahara, Toshiaki Yujiri, Naoki Oishi, Ilseung Choi, Katsumichi Fujimaki, Tsuyoshi Muta, Masaaki Kume, Sayaka Moriguchi, Shinobu Tamura, Takeharu Kato, Hiroyuki Tagawa, Junya Makiyama, Yuji Kanisawa, Yuya Sasaki, Daisuke Kurita, Kyohei Yamada, Joji Shimono, Hirohito Sone, Jun Takizawa, Masao Seto, Hiroshi Kimura, Koichi Ohshima
The characteristics of adult patients with chronic active Epstein-Barr virus infection (adult-onset CAEBV) are poorly recognized, hindering early diagnosis and an improved prognosis. Adult-onset CAEBV (n = 54) diagnosed between 2005 and 2015 were conducted. Adult-onset was defined as an estimated age of onset ≥15 years. To characterize the clinical features of adult-onset CAEBV, we compared them to those of pediatric-onset (estimated age of onset <15 years) patients (n = 75). We compared the prognosis of adult-onset CAEBV with that for patients with nasal-type (n = 37) and non-nasal-type (n = 45) extranodal NK/T-cell lymphoma (ENKTL)...
December 14, 2017: Haematologica
https://www.readbyqxmd.com/read/29241728/an-actin-cytoskeletal-barrier-inhibits-lytic-granule-release-from-natural-killer-cells-in-chediak-higashi-syndrome
#13
Aleksandra Gil-Krzewska, Mezida B Saeed, Anna Oszmiana, Elizabeth R Fischer, Kathryn Lagrue, William A Gahl, Wendy J Introne, John E Coligan, Daniel M Davis, Konrad Krzewski
BACKGROUND: Chediak-Higashi syndrome (CHS) is a rare disorder caused by biallelic mutations in the LYST gene, resulting in formation of giant lysosomes or lysosome-related organelles in several cell types. The disease is characterized by immunodeficiency and a fatal hemophagocytic lymphohistiocytosis due to impaired function of cytotoxic lymphocytes, mainly Natural Killer (NK) cells. OBJECTIVE: We sought to determine the underlying biochemical cause of the impaired cytotoxicity of NK cells in CHS...
December 11, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29239849/hepatitis-during-pregnancy-a-case-of-hemophagocytic-lymphohistiocytosis
#14
Halil Yildiz, Bernard Vandercam, Xave Thissen, Mina Komuta, Nicolas Lanthier, Frederic Debieve, Geraldine Dahlqvist
Hemophagocytic lymphohistiocytosis (HLH) is a rare but severe and potentially fatal syndrome that can occur during pregnancy. A 36 years-old woman, at 29 weeks of gestation, presented with itchiness and jaundice since a week. On clinical examination she was apyrexial and frankly icteric. Laboratory data showed evidence of acute hepatitis. A complete work-up was made excluding viral hepatitis (HAV, HEV, HBV, HCV, HHV6, CMV, EBV) and autoimmune liver disease. Liver diseases related to pregnancy were not completely excluded...
November 24, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/29224327/-umbilical-cord-blood-transplantation-in-the-treatment-of-chediak-higashi-syndrome-with-hemophagocytic-syndrome-a-case-report-and-literature-review
#15
Y Zhang, Z Y Gao, X J Yu, D P Lu
No abstract text is available yet for this article.
November 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/29209549/macrophage-activation-syndrome-a-report-of-two-cases-and-a-literature-review
#16
Asaad Alkoht, Ibrahem Hanafi, Basheer Khalil
Macrophage activation syndrome (MAS) is a severe, potentially fatal condition that may complicate autoimmune diseases, and it belongs to hemophagocytic lymphohistiocytosis (HLH) disorders. MAS occurs in adults and children. However, it is rare in juvenile systemic lupus erythematosus (jSLE), and it is extremely rare to be the initial presentation of jSLE. Here, we report two patients with juvenile SLE who initially presented with MAS. One of the two patients is 4 years old. This is the youngest reported patient to our knowledge...
2017: Case Reports in Rheumatology
https://www.readbyqxmd.com/read/29208852/extremely-high-serum-ferritin-an-instrumental-marker-of-masquerading-adult-onset-still-s-disease-with-hemophagocytic-syndrome
#17
Shun Yamashita, Naoko E Furukawa, Tomoyo Matsunaga, Yuka Hirakawa, Masaki Tago, Shu-Ichi Yamashita
BACKGROUND Adult-onset Still's disease (AOSD) is a rare multi-systemic inflammatory disorder of unknown etiology characterized by spiking fever, characteristic rash, and arthritis. It often associates with high serum ferritin levels. CASE REPORT An 88-year-old woman had fever of over 39°C without response to extended-spectrum antibiotics for 6 days. She had non-specific erythema with infiltration on her trunk. She had leukocytosis with neutrophilia of 80%, mild hepatic dysfunction, normal level of rheumatoid factor and antinuclear antibody, thrombocytopenia, elevated d-dimer and soluble interleukin2 receptor, extremely high serum ferritin (78 662 ng/mL), and splenomegaly...
December 6, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/29200153/dengue-associated-hemophagocytic-lymphohistiocytosis-a-rare-complication-of-a-common-infection-in-singapore
#18
Kai-Qian Kam, Shui Yen Soh, Rajat Bhattacharyya
Hemophagocytic lymphohistiocytosis (HLH) can progress rapidly, often leading to multisystem organ failure and death. Prompt recognition of the syndrome and institution of appropriate treatment are crucial steps in improving the outcome. Dengue virus infection is not commonly known to be associated with secondary HLH. We present a case of a child with dengue fever who subsequently developed classical features of HLH. He was treated successfully with 4 weeks of steroid monotherapy instead of the multidrug therapy proposed in the HLH 2004 protocol...
December 1, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29199203/hemophagocytic-syndrome-complicated-with-dermatomyositis-controlled-successfully-with-infliximab-and-conventional-therapies
#19
Yoji Komiya, Tetsuya Saito, Fumitaka Mizoguchi, Hitoshi Kohsaka
A 57-year-old woman was admitted to our hospital because of a high fever, anemia, and hyperferritinemia. Since a bone marrow examination revealed hemophagocytosis, she was diagnosed with hemophagocytic syndrome (HPS). During treatment of HPS, a heliotrope rash and Gottron's sign appeared with elevated levels of serum aldolase. She also developed heart failure. She was diagnosed with dermatomyositis (DM) and associated myocarditis. Although the administration of glucocorticoids, calcineurin inhibitors, intravenous immunoglobulins, and etoposide ameliorated the clinical findings of DM and cytopenia, the fever and hyperferritinemia remained...
2017: Internal Medicine
https://www.readbyqxmd.com/read/29194292/fetal-splenomegaly-a-review
#20
Marta Moreira, Rafael Brás, Daniela Gonçalves, Inês Alencoão, Gonçalo Inocêncio, Maria Rodrigues, Jorge Braga
Enlargement of the fetal spleen is usually found secondary to systemic diseases and is frequently associated with hepatomegaly. By far, the most common causes of fetal splenomegaly are infectious. Other etiologies responsible for this sign are hemolytic anemia, congestive cardiac failure, metabolic disorders, and rarely, leukemia, lymphoma, and histiocytosis.We report a case of prenatal splenomegaly diagnosed at 35 weeks, confirmed in the postnatal period. The postnatal workup showed the newborn had a familial type 3 form of hemophagocytic lymphohistiocytosis (HLH)...
November 29, 2017: Ultrasound Quarterly
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