Presentation
The duplicated product had not been observed at presentation in malignant disease, as far as we are aware; thus, the findings are discussed with regard to this case and other possible smoldering leukemias. [ncbi.nlm.nih.gov]
[…] consider Chronic Myelomonocytic Leukemia ) Lack of neutrophilia (if present consider BCR-ABL1 CML or atypical CML) Elevated blasts, but not to leukemic levels in either: Peripheral blood blasts 2-19%, based on 200 leukocyte differential, OR Bone marrow [surgpathcriteria.stanford.edu]
Blasts are commonly present. RAEB-1 is defined by 2-4% blasts in the peripheral blood. RAEB-2 is defined by 5-19% blasts in the peirpheral blood. [imagebank.hematology.org]
Anderson presentation. The presentation to treatment interval was greater than 2 months in 1%, 3%, and 4% of the AML, RAEB-t, and RAEB patients, respectively. [bloodjournal.org]
(Outcomes/Resolutions) The severity of Refractory Anemia with Excess Blasts depends on the degree to which blast cell levels are elevated, and if Auer rods are present. [dovemed.com]
Psychiatrical
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Suggestibility
Our data suggest that the propriety of administering AML Rx to patients with RAEB or RAEB-t who have poor prognosis without treatment is identical to the propriety of treating AML in this fashion. [ncbi.nlm.nih.gov]
It is suggested that imbalance in immunoregulatory T cells, which has a crucial role in the control of hemopoiesis, may be a primary event in the pathogenesis of myelodysplastic syndrome which eventually develops into an overt leukemia. [mdanderson.influuent.utsystem.edu]
Here we present data suggesting that the biology of RAEB-T more resembles that of refractory anemia (RA), refractory anemia with ringed sideroblasts (RARS), and RAEB (“other MDS”) than that of AML. [bloodjournal.org]
Access full-color images and more than 90 online-only topics at Expert Consult, as well as EBMs, Suggested Reading, Patient Teaching Guides, and additional algorithms. [books.google.com]
Neurologic
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Meningism
Ferri’s popular "5 books in 1" format provides quick guidance on short QT syndrome, microscopic polyangiitis, fungal meningitis, and much more. This medical reference makes the answers you need even easier to find - anytime, anywhere. [books.google.com]
Workup
Serum
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Auer Rods Present
rod present in blast, 6 - 8% myeloblasts, neutrophils show nuclear hypolobulation RAEB-2: 47 year old woman with 12% myeloblasts and occasional Auer rods: Normocellular biopsy Normal erythroid precursors but shift to immature granulocytes Same patient [pathologyoutlines.com]
rods present in 70% of cases Ringed sideroblasts may be numerous Hypercellular marrow in 80-90% of cases Chronic myelomonocytic leukemia (CMML) Must exclude CML and other myeloproliferative diseases first Usually splenomegaly and elevated WBC count but [thedoctorsdoctor.com]
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Normocytic Normochromic Anemia
normochromic anemia Macrocytosis Dimorphic red blood cells (RBC) Mixture of normal RBC and hypochromic microcytic RBC Often seen in Sideroblastic Anemia (RARS) Basophilic stippling Poikilocytosis Varying shapes, frequently macro-ovalocytes Bone marrow [surgpathcriteria.stanford.edu]
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Hypercholesterolemia
Case Report We present a 66 year old male, with a previous history of type II diabetes mellitus and hypercholesterolemia who arrived at the emergency department complaining of odynophagia and a left submandibular growth. [omicsonline.org]
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Normocytic Anemia
The laboratory tests revealed normocytic anemia with a hemoglobin concentration of 6.0 g/dl, as well as thrombocytopenia (61 109/l) and leukocytosis (12 109/l) with circulating blasts. [spandidos-publications.com]
Treatment
Our data suggest that the propriety of administering AML Rx to patients with RAEB or RAEB-t who have poor prognosis without treatment is identical to the propriety of treating AML in this fashion. [ncbi.nlm.nih.gov]
[…] service, product or treatment in your circumstances. [leukaemia.org.au]
Analyses of EFS From Start of Treatment Treatment regimen was also predictive of outcome. [bloodjournal.org]
Yi JH, Huh J, Kim HJ et al (2013) Genome-wide single-nucleotide polymorphism array-based karyotyping in myelodysplastic syndrome and chronic myelomonocytic leukemia and its impact on treatment outcomes following decitabine treatment. [link.springer.com]
Prognosis
Our data suggest that the propriety of administering AML Rx to patients with RAEB or RAEB-t who have poor prognosis without treatment is identical to the propriety of treating AML in this fashion. [ncbi.nlm.nih.gov]
(Type 2 RAEB), the prognosis is around 10 months survival Proper care should be taken to treat and control complications from MDS. [dovemed.com]
Patients with other abnormalities were considered as better prognosis if they did not have an antecedent hematologic disorder (AHD) and as worse prognosis if they had an AHD. [bloodjournal.org]
Both forms generally carry a difficult prognosis: published average survival times (now dated) range from 9-16 months. [verywellhealth.com]
Etiology
(Etiology) Refractory Anemia with Excess Blasts is caused by genetic mutations. [dovemed.com]
•Etiology: Possible chronic antigenic stimulation Abnormal Differentiation •Cell Cycle Maturation arrest. •Altered Proliferation. •Transcription Factors alterations •Impaired maturation •Cytopenias • Progression to leukemia 11. [slideshare.net]
Some patients will respond to immunosuppression (ATG) and/or biological response modifiers (lenalidomide) suggesting an immune-mediated etiology in some individuals. [atlasgeneticsoncology.org]
PATHOBIOLOGY The etiology and pathogenesis of MDSs remain poorly characterized. [archivesofpathology.org]
Epidemiology
Epidemiology There are few data on the epidemiology of RAEB, which may account for 20-30% of all MDS cases. MDS is predominantly diagnosed in the elderly population. [atlasgeneticsoncology.org]
Thrombocytopenia Weakness or feeling tired Diagnostic Exams FISH (flourescence in situ hybridzation) Flow cytometry Immunocytochemistry Immunophenotyping Peripheral blood smear Progression and Transformation 25% of RAEB-1 and 33% of RAEB-2 transform to AML Epidemiology [seer.cancer.gov]
View Article : Google Scholar : PubMed/NCBI 5 Sekeres MA: The epidemiology of myelodysplastic syndromes. Hematol Oncol Clin North Am. 24:287–294. 2010. [spandidos-publications.com]
Age-related incidence and other epidemiological aspects of myelodysplastic syndromes. Br J Haematol. 1992;82:358-67. INTERNET Besa EC, Woermann UJ. Myelodysplastic Syndrome. Medscape. Last Update September 28, 2016. Accessed February 1, 2017. [rarediseases.org]
Epidemiology and Clinical Features Epidemiology As with other types of myelodysplastic syndromes (MDS), MDS with excess blasts-1 (MDS-EB1) and MDS-EB2 tend to occur in older adults with a male predominance. [emedicine.medscape.com]
Pathophysiology
Bone marrow fibrosis: pathophysiology and clinical significance of increased bone marrow stromal fibres. Br J Haematol 2007;139:351–62. Web of Science Google Scholar 5. Farolino DL, Rustagi PK, Currie MS, Doeblin TD, Logue GL. [degruyter.com]
Myelodysplastic Syndromes: Review of Pathophysiology and Current Novel Treatment Approaches. Current Cancer Drug Targets 2007, 7:541-558 [slideshare.net]
The pathophysiology of acquired aplastic anemia. N Engl J Med 1997; 1336: 1365–1372. 31 Molldrem JJ, Jiang YZ, Stetler-Stevenson M, Mavroudis D, Hensel N, Barrett AJ. [nature.com]
The frequency of FLT3 mutations among hematologic malignancies suggests their significance in the pathophysiology of hematopoietic progenitor cells. [archivesofpathology.org]
Changes in DNA methylation in neoplasia: pathophysiology and therapeutic implications. Ann Intern Med. 2001; 134 (7): 573-86 PMid:11281740 Silverman LR. Oncologist. 2001 6 (S5): 8-14 PMid:11700387 Silverman LR, Holland JF, Demakos EP et al. [mjhid.org]
Prevention
Rapidly find the answers you need with separate sections on diseases and disorders, differential diagnosis, clinical algorithms, laboratory results, and clinical preventive services, plus an at-a-glance format that uses cross-references, outlines, bullets [books.google.com]
Antibiotics can prevent a simple infection becoming life-threatening. [leukaemia.org.au]
Bone Marrow Transplantation in Treating Patients With Leukemia, Myelodysplasia, or Lymphoblastic Lymphoma Completed NCT00003187 Phase 2, Phase 3 cyclophosphamide;cyclosporine;cytarabine;methotrexate;methylprednisolone 14 Treatment of Bone Marrow to Prevent [malacards.org]