1
|
B-RAF V600E AND B-RAF CODON 464-469 MUTATIONS IN HAIRY CELL LEUKEMIA PATIENTS AND THEIR RELATION WITH CLINICAL PARAMETERS. JOURNAL OF BASIC AND CLINICAL HEALTH SCIENCES 2021. [DOI: 10.30621/jbachs.868298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
2
|
Rausch J, Windschmitt J, Schilling C, Butsch F, Theobald M, Sasca D, Hess G. Treatment-Induced Aggravation of Vasculitis in Hairy-Cell Leukemia. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2021; 21:e429-e431. [PMID: 33551343 DOI: 10.1016/j.clml.2020.12.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 12/19/2020] [Indexed: 10/22/2022]
Affiliation(s)
- Johanna Rausch
- III Department of Medicine, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany.
| | - Johannes Windschmitt
- III Department of Medicine, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Carolin Schilling
- Center for Cardiology-Cardiology I, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Florian Butsch
- Department of Dermatology, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Matthias Theobald
- III Department of Medicine, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Daniel Sasca
- III Department of Medicine, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Georg Hess
- III Department of Medicine, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| |
Collapse
|
3
|
Clark SM, Samareh-Jahani F, Chaudhuri MA. Massive Splenomegaly and Pancytopenia: It's a Hairy Situation. Cureus 2020; 12:e12237. [PMID: 33500860 PMCID: PMC7819457 DOI: 10.7759/cureus.12237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
A 33-year-old previously healthy Middle Eastern male presented to the emergency department with four weeks of progressively worsening fatigue, dyspnea on exertion, night sweats, and a 10-pound weight loss after suffering a self-limiting viral upper respiratory illness. He was found to be profoundly anemic and thrombocytopenic with normal white blood cell count with a lymphocytic predominance. His anemia was refractory to red blood cell transfusions, to which he developed hyperbilirubinemia. A CT scan revealed hepatomegaly and massive splenomegaly associated with multi-station abdominopelvic lymphadenopathy. A peripheral blood smear revealed several lymphocytes with hairy cell features and bone marrow biopsy revealed hypercellularity with interstitial infiltration by mature lymphoid cells. Flow cytometry confirmed the diagnosis of hairy cell leukemia (HCL) and this patient was initiated on cladribine chemotherapy. This case illustrates the uniqueness of this patient presenting within a short time course, at an atypical age, and with uncommon features for HCL including lymphadenopathy, hepatomegaly, and petechial skin rash. This case also highlights an important point regarding the management of severe anemia in the acute setting while undergoing splenic sequestration. His lack of response to red blood cell transfusions highlights the need for more research on the use of transfusions in patients who are not current surgical candidates for splenectomy.
Collapse
Affiliation(s)
- Sarah M Clark
- Internal Medicine, Emory University School of Medicine, Atlanta, USA
| | | | - Munir A Chaudhuri
- Internal Medicine, Emory University School of Medicine, Atlanta, USA
| |
Collapse
|
4
|
Abstract
PURPOSE OF REVIEW To summarise diagnostic clinical/laboratory findings and highlight differences between classical hairy cell leukaemia (HCLc) and hairy cell leukaemia variant (HCLv). Discussion of prognosis and current treatment indications including novel therapies, linked to understanding of the underlying molecular pathogenesis. RECENT FINDINGS Improved understanding of the underlying pathogenesis of HCLc, particularly the causative mutation BRAF V600E, leading to constitutive activation of the MEK/ERK signalling pathway and increased cell proliferation. HCLc is caused by BRAF V600E mutation in most cases. Purine nucleoside analogue (PNA) therapy is the mainstay of treatment, with the addition of rituximab, improving response and minimal residual disease (MRD) clearance. Despite excellent responses to PNAs, many patients will eventually relapse, requiring further therapy. Rarely, patients are refractory to PNA therapy. In relapsed/refractory patients, novel targeted therapies include BRAF inhibitors (BRAFi), anti-CD22 immunoconjugate moxetumomab and Bruton tyrosine kinase inhibitors (BTKi). HCLv has a worse prognosis with median overall survival (OS), only 7-9 years, despite the combination of PNA/rituximab improving front-line response. Moxetumomab or ibrutinib may be a viable treatment but lacks substantial evidence.
Collapse
Affiliation(s)
- Matthew Cross
- The Royal Marsden Hospital and the Institute of Cancer Research, Sutton, UK
| | - Claire Dearden
- The Royal Marsden Hospital and the Institute of Cancer Research, Sutton, UK.
| |
Collapse
|
5
|
Gupta AK, Sachdeva MUS, Ahluwalia J, Das R, Naseem S, Sharma P, Kumar N, Malhotra P, Varma N, Varma S. Haematological profile of 21 patients with hairy cell leukaemia in a tertiary care centre of north India. Indian J Med Res 2016; 142:426-9. [PMID: 26609034 PMCID: PMC4683827 DOI: 10.4103/0971-5916.169204] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Background & objectives: Hairy cell leukaemia (HCL) is a B cell neoplasm which constitutes around 2 per cent of all the lymphoid leukaemias. It has a characteristic morphology and immunophenotypic profile. It is important to distinguish HCL from other B cell lymphoproliferative disorders due to availability of different chemotherapeutic agents. This study presents clinical, haematological and immunophenotypic profile of patients with HCL seen over a period of four years in a tertiary care hospital in north India. Methods: Twenty one cases of hairy cell leukaemia were analyzed for their clinical details, haemogram, bone marrow examination and immunophenotypic findings. Results: Age of the patients ranged from 28-76 yr with male predominance. Weakness and fever were commonest presentations. Splenomegaly, hepatomegaly, lymphadenopathy were seen in decreasing order of frequency. Anaemia was noted in all 21 patients, leukopenia in 15 and thrombocytopenia in 19 cases. Fourteen patients were pancytopenic. Bone marrow examination showed typical hairy cells in all cases. Immunophenotyping showed expression of CD19, CD20, CD103, CD25 and CD11c in all cases, while positivity was seen for CD79b in 93.7 per cent, kappa light chain restriction in 60 per cent and lambda in 40 per cent cases. Notably, 20 per cent showed CD10 and 12 per cent showed CD23 expression. Interpretation & conclusions: This study reveals some unusual findings in otherwise classical disease entity, like absence of palpable spleen, presence of lymphadenopathy, normal or elevated leukocyte counts, expression of CD10, which at times could be diagnostically challenging.
Collapse
|
6
|
Hairy Cell Leukemia Presenting with Isolated Skeletal Involvement Successfully Treated by Radiation Therapy and Cladribine: A Case Report and Review of the Literature. Case Rep Hematol 2015; 2015:803921. [PMID: 26788382 PMCID: PMC4695657 DOI: 10.1155/2015/803921] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 12/01/2015] [Indexed: 11/18/2022] Open
Abstract
We describe an unusual case of hairy cell leukemia (HCL) in a 55-year-old male presenting with isolated skeletal disease as the initial manifestation without abnormal peripheral blood counts, bone marrow involvement, or splenomegaly. To the best of our knowledge, there have been only two previous reports of a similar case. The patient presented with pain in the right femur. Anteroposterior radiographs of both femurs revealed mixed lytic-sclerotic lesions. PET scan showed multiple metastatic lesions on axial skeleton, pelvis, and both femurs. Histopathological examination of the bone biopsy revealed an infiltrate of HCL. Localized radiation therapy to both proximal femurs and subsequently 4 weeks later, a 7-day course of 0.1 mg/kg/day cladribine provided complete remission with relief of symptoms and resolution of bone lesions. We addressed the manifestations and management of HCL patients with skeletal involvement.
Collapse
|
7
|
Quest GR, Johnston JB. Clinical features and diagnosis of hairy cell leukemia. Best Pract Res Clin Haematol 2015; 28:180-92. [PMID: 26614896 DOI: 10.1016/j.beha.2015.10.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 10/19/2015] [Indexed: 12/16/2022]
Abstract
Significant advances in the diagnosis and treatment of hairy cell leukemia (HCL) have recently been made. Improved distinction of HCL from its mimics though clinical presentations, morphologic and immunophenotypic features, and more recently molecular biology, has highlighted marked differences in treatment response and overall prognosis between these disorders. As our understanding of the unique pathobiology of HCL has grown, exciting new avenues of treatment as well as insight into immune function have been obtained. This review provides an overview of the clinical features and diagnostic attributes of HCL, with contrast to other mature B cell lymphoproliferative disorders with overlapping features.
Collapse
MESH Headings
- Antineoplastic Agents/therapeutic use
- B-Lymphocytes/drug effects
- B-Lymphocytes/pathology
- Diagnosis, Differential
- Fatigue/diagnosis
- Fatigue/pathology
- Female
- Humans
- Indoles/therapeutic use
- Leukemia, Hairy Cell/diagnosis
- Leukemia, Hairy Cell/drug therapy
- Leukemia, Hairy Cell/pathology
- Leukemia, Hairy Cell/surgery
- Leukemia, Prolymphocytic, B-Cell/diagnosis
- Leukemia, Prolymphocytic, B-Cell/drug therapy
- Leukemia, Prolymphocytic, B-Cell/pathology
- Leukemia, Prolymphocytic, B-Cell/surgery
- Lymphoma, B-Cell, Marginal Zone/diagnosis
- Lymphoma, B-Cell, Marginal Zone/drug therapy
- Lymphoma, B-Cell, Marginal Zone/pathology
- Lymphoma, B-Cell, Marginal Zone/surgery
- Male
- Mutation
- Proto-Oncogene Proteins B-raf/antagonists & inhibitors
- Proto-Oncogene Proteins B-raf/genetics
- Sex Factors
- Splenectomy
- Splenomegaly/diagnosis
- Splenomegaly/pathology
- Splenomegaly/surgery
- Sulfonamides/therapeutic use
- Vemurafenib
- Waldenstrom Macroglobulinemia/diagnosis
- Waldenstrom Macroglobulinemia/drug therapy
- Waldenstrom Macroglobulinemia/pathology
- Waldenstrom Macroglobulinemia/surgery
Collapse
Affiliation(s)
- Graeme R Quest
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada.
| | - James B Johnston
- Section of Hematology/Oncology, CancerCare Manitoba, University of Manitoba, Manitoba, Canada
| |
Collapse
|
8
|
Somasundaram V, Purohit A, Aggarwal M, Manivannan P, Mishra P, Seth T, Tyagi S, Mahapatra M, Pati HP, Saxena R. Hairy cell leukemia: A decade long experience of North Indian Hematology Center. Indian J Med Paediatr Oncol 2014; 35:271-5. [PMID: 25538404 PMCID: PMC4264273 DOI: 10.4103/0971-5851.144988] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Hairy cell leukemia is a rare chronic B-cell disorder that follows an indolent but progressive course. This disorder is characterized by pancytopenia, splenomegaly, bone marrow fibrosis and the presence of atypical lymphoid cells with hairy projections in peripheral blood, bone marrow and spleen. Treatment is mainly with nucleoside analog cladribine, which induces complete remission in up to 85% cases. MATERIALS AND METHODS This is a retrospective analysis of Hairy cell Leukemia cases diagnosed and treated in the Department of Hematology, All India Institute of Medical Sciences, New Delhi between 2002 and 2013. Various parameters such as clinical features, laboratory parameters including complete blood cell count, bone marrow findings, cytochemistry, immunophenotyping by flowcytometry or immunohistochemistry, treatment protocol and complications secondary to treatment and relapse were reviewed. RESULTS A total of 35 cases were diagnosed during this period of 12 years of which 27 received cladribine and went in to remission. Median follow-up duration was 26 months. 5 (18%) cases had a relapse and all relapsed cases achieved second remission with cladribine; however, there was no case of second malignancy in our cohort. CONCLUSION Cladribine has emerged as the treatment of choice for hairy cell leukemia given that the overwhelming majority of patients achieve long-lasting complete remissions. Upon relapse, these patients could be successfully salvaged with cladribine retreatment.
Collapse
Affiliation(s)
| | - Abhishek Purohit
- Department of Hematology, All India Institute of Medical Sciences, New Delhi, India
| | - Mukul Aggarwal
- Department of Hematology, All India Institute of Medical Sciences, New Delhi, India
| | - Prabhu Manivannan
- Department of Hematology, All India Institute of Medical Sciences, New Delhi, India
| | - Pravas Mishra
- Department of Hematology, All India Institute of Medical Sciences, New Delhi, India
| | - Tulika Seth
- Department of Hematology, All India Institute of Medical Sciences, New Delhi, India
| | - Seema Tyagi
- Department of Hematology, All India Institute of Medical Sciences, New Delhi, India
| | - Manoranjan Mahapatra
- Department of Hematology, All India Institute of Medical Sciences, New Delhi, India
| | - Hara P. Pati
- Department of Hematology, All India Institute of Medical Sciences, New Delhi, India
| | - Renu Saxena
- Department of Hematology, All India Institute of Medical Sciences, New Delhi, India
| |
Collapse
|
9
|
Ammatuna E, Iannitto E, Tick LW, Arents NLA, Kuijper PH, Nijziel MR. Two cases of q-Fever in hairy cell leukemia. Case Rep Hematol 2014; 2014:863932. [PMID: 25180111 PMCID: PMC4144079 DOI: 10.1155/2014/863932] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Accepted: 07/25/2014] [Indexed: 11/28/2022] Open
Abstract
Hairy cell leukemia (HCL) is a rare B-cell lymphoproliferative disorder accounting for about 2% of all leukemias. The clinical course is indolent, however HCL patients are particularly susceptible to infections. Here we report two cases of Q-fever as first manifestation of disease in two patients affected by HCL. Both patients described in this report showed an unusually sluggish clinical response to the antibiotic treatment with ciprofloxacin probably because of the marked immunodeficiency. However, treatment of HCL with cladribine administered soon after the resolution of QF pneumonitis was uneventful and led to a complete remission in both cases. Most probably the association of Coxiella burnetii (CB) infection and HCL that we observed in two patients is due to chance. However, a hairy cell resembling transformation of freshly isolated human peripheral blood lymphocytes upon CB has been showed. We think that the possibility of CB infection in febrile HCL patient should be always taken in mind, especially in endemic areas. In addition the potential for such infections to become chronic in HCL patients should not be overlooked and the reporting of further cases should be encouraged.
Collapse
Affiliation(s)
- Emanuele Ammatuna
- Department of Hematology, Erasmus University Medical Centre, Daniel den Hoed, Groene Hilledijk 301, 3075 EA Rotterdam, The Netherlands
| | - Emilio Iannitto
- Department of Oncology, Haematology Unit, University of Palermo School of Medicine, Palermo, Italy
| | - Lidwine W. Tick
- Department of Internal Medicine, Maxima Medical Centre, The Netherlands
| | | | - Philip H. Kuijper
- Department of Clinical Chemistry, Máxima Medical Centre, Veldhoven, The Netherlands
| | - Marten R. Nijziel
- Department of Internal Medicine, Maxima Medical Centre, The Netherlands
| |
Collapse
|
10
|
Grever MR, Blachly JS, Andritsos LA. Hairy cell leukemia: Update on molecular profiling and therapeutic advances. Blood Rev 2014; 28:197-203. [PMID: 25110197 DOI: 10.1016/j.blre.2014.06.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 06/12/2014] [Accepted: 06/12/2014] [Indexed: 02/07/2023]
Abstract
Hairy cell leukemia was initially described as a clinicopathologic entity more than 50 years ago. We have subsequently discovered that HCL is really at least two diseases: classical HCL and the hairy cell leukemia variant. The former is among a small group of cancers exceptional for being (nearly) unified by a single genetic lesion, the BRAF V600E mutation. Over the past three decades, tremendous progress in both diagnostic and prognostic clarification has been accompanied by therapeutic advances in classical HCL. Consequently, this once uniformly fatal disease has been converted in most cases into a chronic illness enabling patients to live long and productive lives. In response to standard therapy, patients have high complete remission rates. Unfortunately, the long-term survival curves have not plateaued, revealing that this disease is controlled but not cured. Though rare and representing only about 10% of an already rare disease, those patients with the variant fare exceptionally poorly with standard therapy: complete response rates to purine nucleoside analogs are reported to be less than 50%, whereas the complete response rates in classical HCL are up to 90%. Novel small molecules targeting BRAF and the B-cell receptor signaling complex, and biologic agents like antibodies and immunotoxin conjugates are being explored for those patients who have relapsed. Substantial opportunities for continued research remain. This complex and multi-faceted disease incorporates challenges from altered immunity associated with the underlying disease and its treatments. Considering the rarity of this malignancy, optimization of patient management requires multi-institutional collaboration. The Hairy Cell Leukemia Foundation (www.hairycellleukemia.org) was formed to coordinate these efforts.
Collapse
Affiliation(s)
- Michael R Grever
- 395 W. 12th Ave, Room 392, Columbus, OH 43210, USA; Department of Internal Medicine, Division of Hematology at The Ohio State University, Columbus, OH, USA.
| | - James S Blachly
- 320 W. 10th Ave, 406C Starling Loving Hall, Columbus, OH 43210, USA; Department of Internal Medicine, Division of Hematology at The Ohio State University, Columbus, OH, USA.
| | - Leslie A Andritsos
- 320 W. 10th Ave, A352 Starling Loving Hall, Columbus, OH 43210, USA; Department of Internal Medicine, Division of Hematology at The Ohio State University, Columbus, OH, USA.
| |
Collapse
|
11
|
Abstract
Hairy cell leukemia (HCL), a B cell malignancy comprising 2 % of all leukemias, has become quite exciting recently with regard to the development of new targets for therapy. This review will focus on advancements made within the past 1-2 years in targeted therapy for this disease. These advances may be grouped into two very difference categories, namely targeting of CD22 with the recombinant immunotoxin moxetumomab pasudotox, and targeting of the mutated BRAF component of the MAP kinase pathway. Moxetumomab pasudotox in phase I testing was recently reported to be associated with an overall response rate of 86 % and a complete remission (CR) rate of 46 % in 28 patients with relapsed and refractory HCL. Many of the CRs are without minimal residual disease (MRD). Severe or dose limiting toxicity was not observed on this trial, but a completely reversible and largely asymptomatic form of grade 2 hemolytic uremic syndrome occurred in two patients during retreatment. This agent has commenced phase III multicenter testing to validate its phase I results. An extensive number of studies have documented the V600E mutation in nearly all HCL patients, but not in similar hematologic malignancies. The thymidine kinase inhibitor vemurafenib, which inhibits the V600E mutant of BRAF, was reported to induce a CR in multiply relapsed and refractory HCL, with nearly complete clearing of MRD. One additional partial and one additional complete remission were subsequently reported.
Collapse
Affiliation(s)
- Robert J Kreitman
- Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
| |
Collapse
|
12
|
Ramasamy C, Dubashi B, Rekha JS, Basu D, Jain A, Dutta TK. Hairy cell leukemia masquerading as infective endocarditis. Indian J Hematol Blood Transfus 2014; 29:84-6. [PMID: 24426343 DOI: 10.1007/s12288-011-0132-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Accepted: 12/01/2011] [Indexed: 10/14/2022] Open
Abstract
Hairy cell leukemia is a chronic lymphoproliferative disorder affecting middle-aged adults, with the median age of 50-55 years. We report a case of hairy cell leukemia who presented with fever, splinter haemorrhages and moderate splenomegaly, simulating infective endocarditis. There was bicytopenia at presentation and hairy cells were seen in the peripheral blood.
Collapse
Affiliation(s)
| | - Biswajit Dubashi
- Department of Medical Oncology, JIPMER, Puducherry, 605006 India
| | - J Sree Rekha
- Department of Pathology, JIPMER, Puducherry, India
| | | | - Ankit Jain
- Department of Medical Oncology, JIPMER, Puducherry, 605006 India
| | | |
Collapse
|
13
|
Abstract
Infectious complications remain a significant issue in the care of patients with hematologic malignancies. Inherent immune defects related to the primary disease process are present in patients with disorders such as chronic lymphocytic leukemia, multiple myeloma, hairy cell leukemia, and Hodgkin lymphoma. Therapy-related immunosuppression is also commonplace in these patients. This includes not only treatment-related neutropenia, but also defects in cell-mediated immunity, such as those that occur with purine analog therapy. In this chapter, we will review the pathogenesis of infection in these disorders, as well as the spectrum of infectious complications seen and suggested strategies for the prevention of infection.
Collapse
|
14
|
Giezen TJ, Mantel-Teeuwisse AK, ten Berg MJ, Straus SMJM, Leufkens HGM, Solinge WW, Egberts TCG. Rituximab-induced thrombocytopenia: a cohort study. Eur J Haematol 2012; 89:256-66. [DOI: 10.1111/j.1600-0609.2012.01808.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/15/2012] [Indexed: 11/26/2022]
Affiliation(s)
| | | | - Maarten J. ten Berg
- Department of Clinical Chemistry and Haematology; University Medical Center Utrecht; Utrecht; The Netherlands
| | | | | | | | | |
Collapse
|
15
|
Abstract
Enormous progress in the treatment of hairy cell leukemia over the last five decades has emerged as a result of organized clinical investigations. Although interferon represented one of the initial major therapeutic advances in the management of this disease in 1984, the subsequent introduction of purine nucleoside analogs (pentostatin and cladribine) changed the natural history of this rare disease by achieving a high rate of complete and durable remissions. The disease-free survival after effective therapy has not reached a plateau, suggesting control but not cure of the disease. Identification of minimal residual disease in patients achieving a complete hematologic remission provides insight into the potential source for predicting eventual relapse. Modern strategies of targeted therapies directed against immunophenotypic markers on the leukemic cells provide hope that improved long-term control of the disease is possible. Combined chemoimmunotherapy may hold the highest promise for disease eradication, but the optimal strategy for using this approach is under active investigation. Despite the perception by hematologists that this disease has already been conquered, there are critically important unanswered questions that remain. Investigation of the bone marrow microenvironment and its impact on minimal residual disease may ultimately prevent relapse. Consideration of the median age of patients at diagnosis combined with a substantial relapse rate mandates continued pursuit of improved therapy. The ultimate goal will be to achieve cure rather than simple control of the disease.
Collapse
|
16
|
Abstract
The incidental finding of an isolated splenomegaly during clinical assessment of patients evaluated for unrelated causes has become increasingly frequent because of the widespread use of imaging. Therefore, the challenging approach to the differential diagnosis of spleen disorders has emerged as a rather common issue of clinical practice. A true diagnostic dilemma hides in distinguishing pathologic conditions primarily involving the spleen from those in which splenomegaly presents as an epiphenomenon of hepatic or systemic diseases. Among the causes of isolated splenomegaly, lymphoid malignancies account for a relevant, yet probably underestimated, number of cases. Splenic lymphomas constitute a wide and heterogeneous array of diseases, whose clinical behavior spans from indolent to highly aggressive. Such a clinical heterogeneity is paralleled by the high degree of biologic variation in the lymphoid populations from which they originate. Nevertheless, the presenting clinical, laboratory, and pathologic features of these diseases often display significant overlaps. In this manuscript, we present our approach to the diagnosis and treatment of these rare lymphomas, whose complexity has been so far determined by the lack of prospectively validated prognostic systems, treatment strategies, and response criteria.
Collapse
|
17
|
Synchronous occurrence of neuroendocrine colon carcinoma and hairy cell leukemia. J Gastrointest Cancer 2010; 42:131-6. [PMID: 20524083 DOI: 10.1007/s12029-010-9167-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
UNLABELLED BACKGROUND-PURPOSE: The risk of secondary malignancy development in patients with hairy cell leukemia has been evaluated in several studies with varying results. The aim of this study is to describe a case of synchronous occurrence of neuroendocrine colon carcinoma and hairy cell leukemia. METHODS A 69-year-old man presented with rectal bleeding. Colonoscopy revealed a rectal tumor, whereas biopsy specimens revealed a poorly differentiated carcinoma. During the preoperative evaluation, pancytopenia was detected. RESULTS At laparotomy, a mass was detected 16 cm from the anal verge and an anterior resection of the rectum was performed. Detailed histological and immunohistochemical analyses revealed a poorly differentiated neuroendocrine carcinoma of the rectum. Postoperative evaluation of pancytopenia revealed hairy cell leukemia. The patient was initially treated with chemotherapy for hairy cell leukemia followed by chemotherapy for neuroendocrine colon carcinoma. Survival was 44 months. CONCLUSIONS To our knowledge, synchronous occurrence of neuroendocrine colon carcinoma and hairy cell leukemia has not been previously reported in the literature. Given the rare incidence of both entities in the general population, it is highly unlikely that they occurred together by chance. Further research is needed to determine what would be the optimal management options of patients with simultaneous hairy cell leukemia and a neuroendocrine colon cancer.
Collapse
|
18
|
Abstract
The description of hairy cell leukemia as a specific clinical entity was published 50 years ago. The clinical outcome for patients was hampered by ineffective chemotherapy, and splenectomy was the major therapeutic approach to improve peripheral blood counts. The median survival after diagnosis was 4 years. With the introduction of alpha-interferon in 1984, marked improvements in patient responses were observed. Shortly thereafter, the introduction of the purine nucleoside analogs transformed this disease into a highly treatable form of leukemia, and patients with the classic form of this rare leukemia now have a near-normal life expectancy. However, other clinical entities mimicking this disease do not respond; thus, accurate diagnosis is important. Immunophenotypic features in classic hairy cell leukemia show that the leukemic cells express CD11c, CD25, CD103, and CD123 and display bright CD20. Despite the high percentage of durable complete remissions with modern therapy, the long-term disease-free survival curves have not reached a plateau. Many patients who achieve a complete remission by morphologic criteria have minimal residual disease demonstrable by either flow cytometry or immunohistochemical staining, and this population may be at higher risk for earlier relapse. Continued clinical research is essential to optimize therapy for this disease.
Collapse
Affiliation(s)
- Michael R Grever
- Department of Internal Medicine, Ohio State University, Columbus, OH, USA.
| |
Collapse
|
19
|
Streptococcus equi Subspecies zooepidemicus Bacteremia as First Manifestation of Hairy Cell Leukemia. INFECTIOUS DISEASES IN CLINICAL PRACTICE 2009. [DOI: 10.1097/ipc.0b013e31819e30ae] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
20
|
Farkash EA, Ferry JA, Harris NL, Hochberg EP, Takvorian RW, Zuckerman DS, Sohani AR. Rare lymphoid malignancies of the breast: a report of two cases illustrating potential diagnostic pitfalls. J Hematop 2009; 2:237-44. [PMID: 20309431 PMCID: PMC2798933 DOI: 10.1007/s12308-009-0043-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2009] [Accepted: 08/03/2009] [Indexed: 11/26/2022] Open
Abstract
Breast involvement by lymphoma is uncommon and poses challenges in diagnosis. Lymphomas may clinically, radiologically, and morphologically mimic both benign and neoplastic conditions. We describe two cases of lymphoid malignancies predominantly involving the breast, both presenting diagnostic dilemmas. The first case, ALK-negative anaplastic large-cell lymphoma involving a seroma associated with a breast implant, is an emerging clinicopathologic entity. Anaplastic large-cell lymphoma has been identified in association with breast implants and seroma formation relatively recently. The second case, hairy cell leukemia involving the breast and ipsilateral axillary sentinel lymph node, is, to our knowledge, the first reported case of hairy cell leukemia involving the breast at the time of diagnosis. While a localized bone lesion was present at time of diagnosis, bone marrow involvement was relatively mild in comparison to that seen in the breast and lymph node. In the first case, lymphoma occurred in a clinical setting where malignancy was unsuspected, highlighting the importance of careful morphologic evaluation of paucicellular samples, as well as awareness of rare clinicopathologic entities, in avoiding a misdiagnosis of a benign inflammatory infiltrate. In the second case, the lymphoid neoplasm exhibited classic morphologic and immunophenotypic features, but presented at an unusual site of involvement. Knowledge of the patient's concurrent diagnosis of hairy cell leukemia involving the bone marrow and bone helped avoid a misdiagnosis of carcinoma rather than lymphoma.
Collapse
Affiliation(s)
- Evan A. Farkash
- James Homer Wright Pathology Laboratories, Massachusetts General Hospital, Boston, MA USA
- Department of Pathology, Harvard Medical School, Boston, MA USA
- Department of Pathology, Massachusetts General Hospital, 55 Fruit St., WRN 219, Boston, MA 02114 USA
| | - Judith A. Ferry
- James Homer Wright Pathology Laboratories, Massachusetts General Hospital, Boston, MA USA
- Department of Pathology, Harvard Medical School, Boston, MA USA
| | - Nancy Lee Harris
- James Homer Wright Pathology Laboratories, Massachusetts General Hospital, Boston, MA USA
- Department of Pathology, Harvard Medical School, Boston, MA USA
| | - Ephraim P. Hochberg
- Center for Lymphoma, Massachusetts General Hospital Cancer Center, Boston, MA USA
| | - Ronald W. Takvorian
- Center for Lymphoma, Massachusetts General Hospital Cancer Center, Boston, MA USA
| | | | - Aliyah R. Sohani
- James Homer Wright Pathology Laboratories, Massachusetts General Hospital, Boston, MA USA
- Department of Pathology, Harvard Medical School, Boston, MA USA
| |
Collapse
|
21
|
Gedik E, Girgin S, Aldemir M, Keles C, Tuncer MC, Aktas A. Non-traumatic splenic rupture: Report of seven cases and review of the literature. World J Gastroenterol 2008; 14:6711-6. [PMID: 19034976 PMCID: PMC2773315 DOI: 10.3748/wjg.14.6711] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate seven patients with non-traumatic splenic rupture (NSR). NSR is an uncommon dramatic abdominal emergency that requires immediate diagnosis and prompt surgical treatment to ensure the patient’s survival.
METHODS: Within 11 years, seven cases were evaluated for patient characteristics, anamnesis and symptoms, method of diagnosis, findings of laparotomy, and etiology of NSR.
RESULTS: There were six (86%) male and one female (14%) patient, whose mean age was 36 ± 12.8 (17-56) years. We report here four cases of Plasmodium vivax malaria (cases I-IV), one case of hemodialysis (case V), one case of spontaneous splenic rupture (case VI), and one case of hairy cell leukemia (case VII). Splenectomy was performed in all patients. All of them made an uneventful recovery and were discharged in stable condition.
CONCLUSION: NSR is a rare entity that needs a high index of suspicion for diagnosis. Using ultrasonography or computer tomography, and peritoneal aspiration of fresh blood may assist in the diagnosis of NSR. Increased awareness of NSR can enhance early diagnosis and effective treatment.
Collapse
|
22
|
Current Awareness in Hematological Oncology. Hematol Oncol 2007. [DOI: 10.1002/hon.796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|