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Plasmacytoma

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https://www.readbyqxmd.com/read/29340123/multiple-extramedullary-plasmacytoma-in-a-setting-of-complete-bone-marrow-remission-food-for-thought
#1
Negi Preety, Kingsley Pamela Alice, Jomi Chinnu, Mathew Amrith, George Sneha, Immanuel Vivek, Abraham Puliyelil Abraham
Extramedullary plasmacytoma as a mode of relapse in multiple myeloma (MM) is unusual. Current recommendations do not incorporate the routine use of 18-fluorodeoxyglucose positron emission tomography-computed tomography (FDG PET/CT) imaging prior to haematopoietic stem cell transplant (HSCT) in MM. We report a case of relapsed MM with complete remission as per IMWG criteria. In the interim period, before the HSCT, the patient had localizing neurological signs and symptoms attributed to multiple extramedullary plasmacytomas...
October 1, 2017: International Journal of Hematology-oncology and Stem Cell Research
https://www.readbyqxmd.com/read/29339964/cerebral-venous-thrombosis-with-papilloedema-secondary-to-skull-base-plasmacytoma
#2
Peter W MacIntosh, Amy Y Lin, Jin Suh Kim, Fernando D Testai, Heather E Moss
A 60-year-old woman with history of multiple myeloma was in remission after stem cell transplant 6 years prior. She was undergoing work-up for headaches that were thought to be secondary to a right mastoiditis seen on magnetic resonance imaging (MRI). On routine eye exam, papilloedema was noted. A lumbar puncture was performed, with elevated opening pressure with normal constituents. She was an atypical age for idiopathic intracranial hypertension, and her mastoiditis raised concern for secondary cerebral venous sinus thrombosis...
October 2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/29338789/diagnosis-treatment-and-response-assessment-in-solitary-plasmacytoma-updated-recommendations-from-a-european-expert-panel
#3
REVIEW
J Caers, B Paiva, E Zamagni, X Leleu, J Bladé, S Y Kristinsson, C Touzeau, N Abildgaard, E Terpos, R Heusschen, E Ocio, M Delforge, O Sezer, M Beksac, H Ludwig, G Merlini, P Moreau, S Zweegman, M Engelhardt, L Rosiñol
Solitary plasmacytoma is an infrequent form of plasma cell dyscrasia that presents as a single mass of monoclonal plasma cells, located either extramedullary or intraosseous. In some patients, a bone marrow aspiration can detect a low monoclonal plasma cell infiltration which indicates a high risk of early progression to an overt myeloma disease. Before treatment initiation, whole body positron emission tomography-computed tomography or magnetic resonance imaging should be performed to exclude the presence of additional malignant lesions...
January 16, 2018: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/29333413/a-case-of-primary-plasma-cell-leukemia-exhibiting-hemophagocytic-plasma-cells-relapsed-with-multiple-cutaneous-plasmacytoma
#4
Narae Hwang, Ji Yeon Ham, Jang Soo Suh
No abstract text is available yet for this article.
December 2017: Blood Research
https://www.readbyqxmd.com/read/29333030/multiple-myeloma-presenting-as-thyroid-plasmacytoma
#5
Kaalindi Singh, Pankaj Kumar, Ritesh Pruthy, Gautam Goyal
Thyroid gland and thyroid cartilage infiltration in multiple myeloma (MM) are rare. Here, we discuss a patient who presented with hoarseness of voice and was found to have a hypodense lesion in right lobe of thyroid involving thyroid and cricoid cartilage. Fine-needle aspiration cytology with immunohistochemistry revealed extramedullary plasmacytoma of thyroid. MM was ruled out initially by serum protein electrophoresis, immunofixation, and bone marrow biopsy. Later, lytic lesions were found in multiple bones on radiation planning scan and he was finally diagnosed as case of MM with thyroid involvement...
October 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29316841/testicular-plasmacytoma-unique-location-or-circumstantial-presentation
#6
Eli Muchtar, Joan Bladé, Morie A Gertz
No abstract text is available yet for this article.
January 9, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29301803/extramedullary-plasmacytoma-rare-neoplasm-of-parotid-gland
#7
Sehrish Abrar, Nasir Ali, Bilal Mazhar Qureshi, Ahmed Nadeem Abbasi
A 45-year-old man presented with left-sided facial swelling. Initial excisional biopsy was done somewhere else without prior imaging and it came out to be pleomorphic adenoma; local imaging after biopsy showed mass over the left parotid gland with ipsilateral lymphadenopathy. On examination, there was a well-circumscribed mass with signs of left facial nerve palsy. He underwent left radical parotidectomy with ipsilateral modified radical neck dissection, and per operatively, it came out to be neoplastic lesion...
January 4, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29296768/patient-derived-xenografts-of-low-grade-b-cell-lymphomas-demonstrate-roles-of-the-tumor-microenvironment
#8
W Richard Burack, Janice M Spence, John P Spence, Stephen A Spence, Philip J Rock, Gautam N Shenoy, Leonard D Shultz, Richard B Bankert, Steven H Bernstein
To discern features of non-Hodgkin lymphomas (NHL) that are autonomous from those that are shaped by the tumor environment (TE), we used patient-derived xenografts (PDX) to probe the effects on neoplastic cells of manipulating the TE. Properties of neoplastic cells that are often considered to be autonomous include their relative independence from stromal support, their relative survival and/or proliferation advantages compared with nonneoplastic cells, and their state of differentiation. Prior approaches to creation of PDX models likely select for neoplasms, which are the most capable of engraftment, potentially masking the effects of the TE...
July 11, 2017: Blood Advances
https://www.readbyqxmd.com/read/29296171/micrornas-sequencing-unveils-distinct-molecular-subgroups-of-plasmablastic-lymphoma
#9
Maria Raffaella Ambrosio, Lucia Mundo, Sara Gazaneo, Matteo Picciolini, Prasad Satya Vara, Shaheen Sayed, Alessandro Ginori, Giuseppe Lo Bello, Leonardo Del Porro, Mohsen Navari, Stefano Ascani, Amhed Yonis, Lorenzo Leoncini, Pier Paolo Piccaluga, Stefano Lazzi
Plasmablastic lymphoma (PBL) is an aggressive lymphoma, often arising in the context of immunodeficiency and associated with Epstein-Barr virus (EBV) infection. The most frequently detected genetic alteration is the deregulation of MYC gene through the translocation - t(8;14)(q24;q32). The diagnosis of PBL is often challenging because it has an overlap in morphology, immunophenotype, cytogenetics and virus association with other lymphomas and plasma cell neoplasms; further, its molecular basis remains elusive...
December 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/29277611/long-non-coding-rna-pvt1-5-promotes-cell-proliferation-by-regulating-mir-126-slc7a5-axis-in-lung-cancer
#10
Hongliang Li, Shuxian Chen, Jia Liu, Xiaopeng Guo, Xudong Xiang, Tianqi Dong, Pengzhan Ran, Qian Li, Bei Zhu, Xiyu Zhang, Dan Wang, Chunjie Xiao, Shangyong Zheng
Dysregulated long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) play key roles in the development of human cancers. The lncRNA plasmacytoma variant translocation 1 (PVT1) is reported to be an oncogene in a variety of cancers. However, the roles of PVT1-5 and its related miRNAs in lung cancer are poorly understood. In this study, we found that PVT1-5 expression was significantly increased in lung cancer tissues and cell lines. By using biotin-labeled lncRNA-PVT1-5 probe for miRNA in vivo precipitation (miRIP) in lung cancer cells and dual-luciferase reporterassays, we identified that miR-126 was associated with lncRNA-PVT1-5...
December 23, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29244840/high-expression-of-lncrna-pvt1-independently-predicts-poor-overall-survival-in-patients-with-primary-uveal-melanoma
#11
Haiming Xu, Jingwen Gong, Hui Liu
The plasmacytoma variant translocation 1 gene (PVT1) plays an oncogenic role in the initiation and progression of multiple cancers. In this study, by using deep-sequencing data and follow-up data in the Cancer Genome Atlas-Uveal melanomas (TCGA-UVM), we assessed the association between the expression of PVT1 and clinicopathological characteristics of patients with uveal melanoma, the mechanism of its dysregulation and its prognostic value. Results showed that high PVT1 expression group had a higher proportion of epithelioid cell dominant disease (a more malignant histological subtype than spindle cell dominant disease) and more cases of extrascleral extension (a risk factor for metastasis) compared with the low PVT1 expression group...
2017: PloS One
https://www.readbyqxmd.com/read/29240688/oral-plasmacytoma-in-a-dog
#12
Indira Pargass, Alissa Bally, Rod Suepaul
A 6-year-old male Pit bull mix dog presented for bleeding from the mouth persisting for five days. A clinical evaluation revealed a 2 × 3 cm soft tissue mandibular mass at the crown of the first premolar, as well as a non-regenerative anemia and hyperproteinemia. Cytologic and histopathologic evaluations of the mass were compatible with an oral plasmacytoma.
December 14, 2017: Veterinary Sciences
https://www.readbyqxmd.com/read/29232859/competitive-promoter-associated-matrix-attachment-region-binding-of-the-arid3a-and-cux1-transcription-factors
#13
Dongkyoon Kim, Christian Schmidt, Mark A Brown, Haley Tucker
Arid3a/Bright/Dril1 is a B cell-specific transactivator that regulates immunoglobulin heavy chain (IgH) gene transcription by binding promoter and enhancer-associated matrix attachment regions (MARs) within the IgH gene locus. Promoter MAR-mediated Arid3a transactivation is antagonized by direct competition of MAR binding by Cux1/CDP-a ubiquitously expressed repressor originally termed NF-μNR. We report that the NF-μNR complex includes Arid3a in B cells but not in non-B cells through mobility shift assays...
December 10, 2017: Diseases (Basel)
https://www.readbyqxmd.com/read/29230383/solitary-extramedullary-plasmacytoma-of-the-cricoid-cartilage-case-report
#14
Simone Krebs, Ian Ganly, Ronald Ghossein, Joanna Yang, Joachim Yahalom, Heiko Schöder
Solitary plasmacytoma (SP) is an extremely rare form of hematologic malignancy that can be classified as solitary bone plasmacytoma or solitary extramedullary plasmacytoma. Here, we report a patient who presented with progressive shortness of breath and foreign body sensation in his throat. Fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG-PET/CT) demonstrated an abnormal FDG-avid soft tissue mass arising from the larynx involving the cricoid cartilage without additional suspicious lesions...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/29224044/pattern-of-care-and-impact-of-prognostic-factors-on-the-outcome-of-head-and-neck-extramedullary-plasmacytoma-a-systematic-review-and-individual-patient-data-analysis-of-315-cases
#15
Bhanuprasad Venkatesulu, Supriya Mallick, Prashanth Giridhar, Ashish Dutt Upadhyay, Goura K Rath
INTRODUCTION: Head and neck extramedullary plasmacytoma is a rare localized plasma cell neoplasm. We intended to perform this review of the published literature to assess the demographic profile, pattern of care and survival outcomes. METHODS: Two authors independently searched PubMed, Google search and Cochrane library for eligible studies from 1950 till July 1, 2016, published in English language. RESULTS: Median age of the cohort was 57 years (range 11-85)...
December 9, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29214871/rare-manifestations-of-extramedullary-myeloma-testicular-plasmacytomas
#16
Ioannis Ntanasis-Stathopoulos, Maria Gavriatopoulou, Evaggelos Eleftherakis-Papaiakovou, Efstathios Kastritis, Evangelos Terpos, Meletios-Athanasios Dimopoulos
No abstract text is available yet for this article.
December 7, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29207391/tooth-extraction-locally-stimulates-proliferation-of-multiple-myeloma-in-a-patient-with-mandibular-localizations
#17
Jean-Daniel Kün-Darbois, Léonie Quenel, Smaïl Badja, Daniel Chappard
OBJECTIVES: Multiple myeloma (MM) is characterized by the occurrence of osteolytic lesions. MM treatment usually involves antiresorptive drugs (mainly bisphosphonates). CASE REPORT: A patient with an MM presented osteolytic lesions of the mandible. Extraction of teeth 45 and 46 was performed 5 years after the diagnosis of periodontitis. Four months later, osteonecrosis of the jaw (ONJ) was diagnosed at the extraction site. X-ray showed an extension of osteolytic lesions on the right side, close to the extraction site, without modification of the lesions on the left side...
December 6, 2017: Acta Haematologica
https://www.readbyqxmd.com/read/29205163/extramedullary-plasmacytoma-of-the-testicle
#18
Diego M Carrion, Mario Álvarez-Maestro, Juan Gómez Rivas, Pilar González-Peramato, Jesús Cisneros Ledo
OBJECTIVE: We present the case of a patient diagnosed with a testicular extramedullary plasmacytoma (EMP), and perform a brief review of the literature of this pathology. METHODS: A 64 year-old male patient, with history of multiple myeloma successfully treated three years before, presented with left testicular swelling. Initial work-up was compatible with a testicular tumor and radical inguinal orchiectomy was performed. RESULTS: Histologic examination of the testis revealed extensive intertubular infiltration by CD138 and CD56 atypical plasma cells, with diffuse staining for IgA, compatible with EMP...
December 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/29204364/extramedullary-plasmacytoma-of-the-testis-a-case-report
#19
Kota Shimokihara, Takashi Kawahara, Sawako Chiba, Daiji Takamoto, Masahiro Yao, Hiroji Uemura
No abstract text is available yet for this article.
January 2018: Urology Case Reports
https://www.readbyqxmd.com/read/29204279/sellar-plasmacytoma-presenting-with-symptoms-of-anterior-pituitary-dysfunction
#20
Ana G Ferreira, Tiago N Silva, Henrique V Luiz, Filipa D Campos, Maria C Cordeiro, Jorge R Portugal
Sellar plasmacytomas are rare and the differential diagnosis with non-functioning pituitary adenomas might be difficult because of clinical and radiological resemblance. They usually present with neurological signs and intact anterior pituitary function. Some may already have or eventually progress to multiple myeloma. We describe a case associated with extensive anterior pituitary involvement, which is a rare form of presentation. A 68-year-old man was referred to our Endocrinology outpatient clinic due to gynecomastia, reduced libido and sexual impotence...
2017: Endocrinology, Diabetes & Metabolism Case Reports
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