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Atypical Leukemia

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https://www.readbyqxmd.com/read/28342811/myeloid-sarcoma-presentation-diagnosis-and-treatment
#1
REVIEW
L Max Almond, Maria Charalampakis, Samuel J Ford, David Gourevitch, Anant Desai
Myeloid sarcoma is an extramedullary tumor of immature granulocytic cells. It is a rare condition, most often associated with acute myeloid leukemia (AML), although in some rare cases it may present in nonleukemic patients. It should therefore be considered as a differential diagnosis of any atypical cellular infiltrate. It may occur at any site, leading to very varied clinical presentations. Diagnosis is challenging and relies on a high index of suspicion as well as radiology, histology, immunophenotyping, and molecular analyses, which also are essential for risk stratification and treatment planning...
March 7, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28331122/an-autopsy-case-report-of-adult-t-cell-leukemia-accompanied-by-rheumatoid-arthritis-mimicking-diffuse-panbronchiolitis
#2
Tomoko Shiraishi, Hiroshi Ishimoto, Kentaro Akata, Toshinori Kawanami, Kazuhiro Yatera, Hiroshi Mukae
A 50-year-old female with a history of chronic sinusitis and rheumatoid arthritis visited our department with repetitive lower respiratory tract infections of Pseudomonas aeruginosa. Her chest CT showed diffuse panbronchiolitis-like pulmonary lesions, her blood examination revealed atypical lymphocytes, and she was serologically positive for anti-human T-lymphotrophic virus type 1 (HTLV-1) antibody. Her rheumatoid arthritis had been well-controlled after biological agent treatment followed by anti-inflammatory analgesic treatment...
2017: Journal of UOEH
https://www.readbyqxmd.com/read/28329516/precursor-b-cell-all-leukemia-cutis-resembling-lipomas-an-atypical-presentation-of-a-rare-entity-and-a-review-of-the-literature
#3
Yuan Yu Michael Huang, Melinda Liu, Jennifer S Ruth, Silvia Potenziani, Sylvia Hsu
Leukemia cutis (LC) is an extramedullary manifestationof leukemia owing to cutaneous infiltration ofneoplastic cells resulting in characteristic firm,erythematous nodules. Most cases of LC occur inpatients with acute myelogenous leukemia andchronic myelogenous leukemia. However in rarecases, LC has presented in patients with acutelymphoblastic leukemia (ALL). In these rare ALLassociatedcases, only 10 cases of precursor-B-ALL(pre-B-ALL) have been described in the literature.We report a case of a 22-year-old man with relapsingpre-B-ALL who presented with a 4-day history ofmultiple asymptomatic, soft, dome-shaped, lipomalikemounds on his scalp and chin, which exhibitedcutaneous involvement by leukemic cells...
March 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28326824/osteopontin-its-potential-role-in-cancer-of-children-and-young-adults
#4
Gabrielle Karpinsky, Aleksandra Fatyga, Malgorzata Anna Krawczyk, Madeleine Chamera, Natalia Sande, Dagmara Szmyd, Ewa Izycka-Swieszewska, Ewa Bien
OBJECTIVE: Osteopontin (OPN) is aglyco-phosphoprotein, involved in tissue remodeling, inflammation and boneresorption. In various adult neoplasms OPN was shown to correlate with cancer progression, invasiveness and metastasis. AIM: to define the role of OPN in malignancies of children and young adults. MATERIAL AND METHODS: a structured PubMed and Google Scholar literature analysis based on reports published in English between I'1995 and XII'2015...
March 14, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/28314085/targeted-next-generation-sequencing-and-identification-of-risk-factors-in-world-health-organization-defined-atypical-chronic-myeloid-leukemia
#5
Mrinal M Patnaik, Daniela Barraco, Terra L Lasho, Christy M Finke, Kaaren Reichard, Katherine P Hoversten, Rhett P Ketterling, Naseema Gangat, Ayalew Tefferi
Atypical chronic myeloid leukemia (aCML) is an aggressive myeloid neoplasm with overlapping features of myelodysplastic syndromes (prominent granulocytic dysplasia) and myeloproliferative neoplasms (neutrophilic leukocytosis). We studied 25 molecularly-annotated and World Health Organization defined aCML patients; median age 70 years, 84% males. Cytogenetic abnormalities were seen in 36% and gene mutations in 100%. Mutational frequencies were, ASXL1 28%, TET2 16%, NRAS 16%, SETBP1 12%, RUNX1 12%, ETNK1 8% and PTPN11 4%...
March 17, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28298242/migratory-large-vessel-vasculitis-preceding-acute-myeloid-leukemia-a-case-report
#6
Dinusha Chandratilleke, Anthea Anantharajah, Mauro Vicaretti, Warwick Benson, Lucinda J Berglund
BACKGROUND: Large vessel vasculitis is a rare disorder usually occurring in the context of the autoimmune conditions of giant cell arteritis and Takayasu's arteritis. Case reports have described large vessel vasculitis occurring in individuals with myelodysplastic syndrome, preceding transformation to acute myeloid leukemia. CASE PRESENTATION: A 56-year-old Afghanistan-born woman presented with fever, a tender left carotid artery, and raised inflammatory markers...
March 16, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28288720/clonal-b-cell-lymphocytosis-of-marginal-zone-origin
#7
REVIEW
Aliki Xochelli, David Oscier, Kostas Stamatopoulos
Monoclonal B cell Lymphocytosis (MBL) is the term used to characterize individuals presenting with lymphocytosis in the absence of lymphadenopathy, organomegaly or any other features suggestive of an active disease. Based on the immunophenotypic findings, MBL cases are sub-categorized into chronic lymphocytic leukemia (CLL)-like, atypical CLL and non-CLL MBL. The latter corresponds to cases with immunophenotypic features suggestive of post germinal center derivation and still represents a diagnostic conundrum...
March 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/28280256/late-onset-cerebral-toxoplasmosis-after-allogeneic-hematopoietic-stem-cell-transplantation
#8
Ahmed M Khalaf, Mahmoud A Hashim, Mohammed Alsharabati, Kenneth Fallon, Joel K Cure, Peter Pappas, Shin Mineishi, Ayman Saad
BACKGROUND Toxoplasmosis is an uncommon but potentially fatal complication following allogeneic hematopoietic stem cell transplantation (HCT). Post-transplant toxoplasmosis is often a reactivation of prior infection and typically occurs within the first 6 months of transplant. Herein, we report that cerebral toxoplasmosis may occur 22 months after allogeneic hematopoietic stem cell transplantation. CASE REPORT We describe a case of cerebral toxoplasmosis that occurred 22 months after an allogeneic HCT while the patient was on aerosolized pentamidine for Pneumocystis jiroveci pneumonia (PCP) prophylaxis...
March 10, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28251608/adult-t-cell-leukemia-lymphoma-in-a-peruvian-hospital-in-human-t-lymphotropic-virus-type-1-htlv-1-positive-patients
#9
Milton José Max Rodríguez-Zúñiga, Florencio Cortez-Franco, Eberth Qujiano-Gomero
BACKGROUND: Adult T-cell leukemia/lymphoma (ATLL) is an aggressive neoplasm of T-lymphocytes associated with human T-lymphotropic virus type I (HTLV-1) infection. As HTLV-1 is endemic in native ethnics in South America, and its infection leads to several chronic diseases as ATLL with poor prognosis, we aimed to present three ATLL cases and to review current literature. CASE REPORTS: Two cases were from the mountains of Peru, while one was from an endemic harbor of the country...
March 2, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28248840/a-rare-case-of-candida-epiglottitis-in-an-immunocompetent-child
#10
Elizabeth P Beil, David P Sole
We present a case of acute Candida epiglottitis in an otherwise healthy and Haemophilus influenzae type B-immunized 4-year-old child. A query of the literature reveals this disease to be commonly found in patients who are immunocompromised by problems including human immunodeficiency virus disease and lymphoma and leukemia. However, there are no published reports of acute Candida epiglottitis in immunocompetent and vaccinated patients. Our case should emphasize to the emergency physician the need to remain vigilant for subtle and atypical presentations of airway-destabilizing diseases...
February 28, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28241235/a-woman-in-her-40s-with-headache-and-new-onset-seizures
#11
Maya S Graham, Anita Pudusseri, Jeffrey Helgager, Derek P Narendra, Umberto De Girolami, Geraldine S Pinkus, Vaishali Sanchorawala, Edison Miyawaki
A woman in her 40s with a history of plasma cell leukemia presented with 1 month of intermittent headaches followed by a seizure. Results from laboratory studies were notable for a cerebrospinal fluid opening pressure of 28 mm H2O and 8 white blood cells, including 1 atypical plasma cell. Imaging studies revealed confluent bifrontal white matter fluid-attenuated inversion recovery hyperintensities, as well as a contrast-enhancing sellar lesion. The patient underwent a stereotactic biopsy. The differential diagnosis, pathologic findings, and diagnosis are discussed...
February 27, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28240607/downregulation-of-gata1-drives-impaired-hematopoiesis-in-primary-myelofibrosis
#12
Laure Gilles, Ahmet Dirim Arslan, Christian Marinaccio, Qiang Jeremy Wen, Priyanka Arya, Maureen McNulty, Qiong Yang, Jonathan C Zhao, Katerina Konstantinoff, Terra Lasho, Animesh Pardanani, Brady Stein, Isabelle Plo, Sriram Sundaravel, Amittha Wickrema, Annarita Migliaccio, Sandeep Gurbuxani, William Vainchenker, Leonidas C Platanias, Ayalew Tefferi, John D Crispino
Primary myelofibrosis (PMF) is a clonal hematologic malignancy characterized by BM fibrosis, extramedullary hematopoiesis, circulating CD34+ cells, splenomegaly, and a propensity to evolve to acute myeloid leukemia. Moreover, the spleen and BM of patients harbor atypical, clustered megakaryocytes, which contribute to the disease by secreting profibrotic cytokines. Here, we have revealed that megakaryocytes in PMF show impaired maturation that is associated with reduced GATA1 protein. In investigating the cause of GATA1 downregulation, our gene-expression study revealed the presence of the RPS14-deficient gene signature, which is associated with defective ribosomal protein function and linked to the erythroid lineage in 5q deletion myelodysplastic syndrome...
February 27, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28237383/the-curious-case-of-a-cardiac-tamponade-in-the-hypertensive-patient-presenting-as-abdominal-fullness
#13
William Li, Rogin Subedi, Bhaskara Madhira
Cardiac tamponade is a medical emergency consisting of an accumulation of fluid in the pericardial space which is rapidly progressing and fatal. Because cardiac tamponade is ultimately a clinical diagnosis, mindful consideration for atypical presentations is essential for the reduction of mortality in the acute setting. Our patient was a 77year-old female admitted after presenting with general malaise, weakness, somnolence, altered mental status and urinary incontinence found to have CML (chronic myeloid leukemia) on confirmatory bone marrow biopsy after suspicions arose from a leukocytosis of 34,000 cells per mcL with 85% neutrophils and elevated blasts (8%)...
January 19, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28205462/atypical-chronic-myeloid-leukemia-in-a-german-shepherd-dog
#14
Christina L Marino, Jimmy N S N Tran, Tracy Stokol
A 4-y-old neutered male German Shepherd Dog was presented with a 3-d duration of lethargy, restlessness, and vomiting. Physical examination revealed generalized lymphadenopathy, pale mucous membranes, systolic heart murmur, dehydration, and fever. Hematologic abnormalities included moderate-to-marked leukocytosis, characterized by neutrophilia with a left shift to progranulocytes and 2% presumptive myeloid blasts, marked anemia that was nonregenerative, and marked thrombocytopenia. Dysplasia was evident in neutrophils and platelets...
February 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28191813/acute-lymphoblastic-leukemia-mimicking-wilms-tumor-at-presentation
#15
Amitabh Singh, Anirban Mandal, Vijay Guru, Rachna Seth
BACKGROUND: Acute lymphoblastic leukemia (ALL), the commonest malignancy of childhood, is known to manifest with a myriad of atypical presentations. Nephromegaly is a rare presentation of childhood ALL with hepatic mass being even rarer. CASE PRESENTATION: We present a 3 year-old child with unilateral renal mass and hepatic mass lesion with normal blood counts, initially suspected to have metastatic Wilms tumor based on clinical, radiological and WT1 positivity on immunocytochemistry of renal mass...
September 2016: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/28183680/diagnosis-of-variant-rara-translocation-using-standard-dual-color-dual-fusion-pml-rara-fish-probes-an-illustrative-report
#16
Manish Kumar Singh, Mayur Parihar, Neeraj Arora, Deepak Kumar Mishra, Saurabh Jayant Bhave, Mammen Chandy
Acute promyelocytic leukemia (APML) with variant RARa translocations comprises 1-2% of APML cases. However, the diagnosis of these cases is challenging as the routine practice includes fluorescence in situ hybridization (FISH) reverse transcription polymerase chain reaction targeting the PML and RARA genes to detect PML/RARA fusions. Here, we report a case highlighting the importance of atypical FISH signal patterns in standard dual-color dual-fusion PML/RARa FISH analysis complimented by karyotyping to detect these variant RARA translocations...
February 1, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28123174/new-diagnosis-of-atypical-ataxia-telangiectasia-in-a-17-year-old-boy-with-t-cell-acute-lymphoblastic-leukemia-and-a-novel-atm-mutation
#17
Jasmin Roohi, Jennifer Crowe, Denis Loredan, Kwame Anyane-Yeboa, Mahesh M Mansukhani, Lenore Omesi, Jennifer Levine, Anya Revah Politi, Shan Zha
Ataxia-telangiectasia (A-T) is an autosomal recessive chromosome breakage disorder caused by mutations in the ATM gene. Typically, it presents in early childhood with progressive cerebellar dysfunction along with immunodeficiency and oculocutaneous telangiectasia. An increased risk of malignancy is also associated with the syndrome and, rarely, may be the presenting feature in small children. We describe a 17-year-old boy with slurred speech, mild motor delays and learning disability diagnosed with atypical A-T in the setting of T-cell acute lymphoblastic leukemia...
January 26, 2017: Journal of Human Genetics
https://www.readbyqxmd.com/read/28121748/disseminated-nonleukemic-myeloid-sarcoma-of-the-spleen-with-involvement-of-the-liver-in-an-infant
#18
Yueli Rao, Yuanyuan Wu, Ao Dong, Kun Zhu, Wei Li, Shenyang Cai, Min Yang, Jie Yan
Nonleukemic myeloid sarcoma (MS) is a rare tumor that can occur in several locations without myeloid leukemia. We reported a first case of nonleukemic MS of the spleen involving the liver in a 5-month-old boy presenting with hematochezia, petechial hemorrhage, fever, and hepatosplenomegaly. Bone marrow trephine biopsy and immunophenotypic flow cytometry revealed no evidence of myeloid leukemia. The patient underwent liver biopsy and splenectomy. Clinicopathology and immunohistochemistry suggested a disseminated nonleukemic MS...
January 24, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28110969/-acquired-non-amyloid-related-factor%C3%A2-x-deficiency-a-first-case-associated-with-atypical-chronic-lymphocytic-leukemia-and-literature-review
#19
L Boudin, M Patient, E Roméo, J-S Bladé, O Gisserot, J-P de Jauréguiberry
INTRODUCTION: Acquired factor X deficiency is in most cases associated with AL amyloidosis. Acquired non-amyloid related factor X deficiency (DNAA-FX) has been exceptionally reported in the literature. CASE REPORT: We report the first case of acquired, non-amyloid related factor X deficiency associated with atypical chronic lymphoid leukemia in a 66-year-old patient with spontaneous hematomas. After therapeutic failure with polyclonal intravenous immunoglobulins, specific lymphoid malignancy treatment allowed symptoms and coagulation disorder resolution...
January 19, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28101221/a-complex-translocation-3-17-15-in-acute-promyelocytic-leukemia-confirmed-by-fluorescence-in-situ-hybridization
#20
Yanming Wang, Junjie Ma, Xinguang Liu, Riming Liu, Lingling Xu, Li Wang, Jiannong Cen, Xiaoxia Chu
Acute promyelocytic leukemia (APL) is typified by t(15;17)(q22;q21), generating the promyelocytic leukemia (PML) gene at 15q22 with the retinoic acid α-receptor (RARA) gene at 17q21. The PML-RARA fusion gene is believed to play a vital role in leukemogenesis. A sizeable minority of patients with complex variants of APL have been reported. The present study reports the case of a 33-year-old male with APL carrying a potential complex translocation. The initial symptom was bleeding gums. Chromosomal analysis of the bone marrow cells revealed an atypical 17q aberration...
December 2016: Oncology Letters
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