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Thymoma

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https://www.readbyqxmd.com/read/28212996/analysis-of-a-panel-of-druggable-gene-mutations-and-of-alk-and-pd-l1-expression-in-a-series-of-thymic-epithelial-tumors-tets
#1
Marcello Tiseo, Angela Damato, Lucia Longo, Fausto Barbieri, Federica Bertolini, Alessandro Stefani, Mario Migaldi, Letizia Gnetti, Roberta Camisa, Paola Bordi, Sebastiano Buti, Giulio Rossi
INTRODUCTION: Thymic epithelial tumors (TETs) are rare neoplasms with different prognosis lacking consistent molecular alterations possibly leading to targeted therapy. We collected a consecutive series of TETs aimed at investigating the mutational status of druggable genes (EGFR, c-KIT, KRAS, BRAF, PDGFR-alpha and -beta, HER2 and c-MET) and the expression of ALK and PD-L1. PATIENTS AND METHODS: One hundred twelve consecutive cases of TETs and relative clinico-pathologic features were collected...
February 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28203162/thymoma-metastasis-to-the-semimembranosus-muscle
#2
Kenta Taniguchi, Michiro Susa, Sho Ogata, Yuichi Ozeki, Kazuhiro Chiba
Thymoma is the most common thymic epithelial tumor whose classification was first introduced in 1999. Type B2 thymoma is considered a moderate/high-risk tumor; however, extrathoracic metastases are extremely rare with limited reports to date. In this report, we present a rare thymoma metastasis to the semimembranosus muscle, which was resected with a wide margin after confirmation by open biopsy. At the final follow-up after 1 year, no local recurrence has been observed.
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28202703/investigations-in-gabaa-receptor-antibody-associated-encephalitis
#3
Marianna Spatola, Mar Petit-Pedrol, Mateus Mistieri Simabukuro, Thaís Armangue, Fernanda J Castro, Maria I Barcelo Artigues, Maria R Julià Benique, Leslie Benson, Mark Gorman, Ana Felipe, Ruben L Caparó Oblitas, Myrna R Rosenfeld, Francesc Graus, Josep Dalmau
OBJECTIVE: To report the clinical features, comorbidities, receptor subunit targets, and outcome in patients with anti-GABAA receptor (GABAAR) encephalitis. METHODS: Clinical study of 26 patients, including 17 new (April 2013-January 2016) and 9 previously reported patients. Antibodies to α1, β3, and γ2 subunits of the GABAAR were determined using reported techniques. RESULTS: Patients' median age was 40.5 years (interquartile range 48...
February 15, 2017: Neurology
https://www.readbyqxmd.com/read/28192408/macrophages-confer-survival-signals-via-ccr1-dependent-translational-mcl-1-induction-in-chronic-lymphocytic-leukemia
#4
M H A van Attekum, S Terpstra, E Slinger, M von Lindern, P D Moerland, A Jongejan, A P Kater, E Eldering
Protective interactions with bystander cells in micro-environmental niches, such as lymph nodes (LNs), contribute to survival and therapy resistance of chronic lymphocytic leukemia (CLL) cells. This is caused by a shift in expression of B-cell lymphoma 2 (BCL-2) family members. Pro-survival proteins B-cell lymphoma-extra large (BCL-XL), BCL-2-related protein A1 (BFL-1) and myeloid leukemia cell differentiation protein 1 (MCL-1) are upregulated by LN-residing T cells through CD40L interaction, presumably via nuclear factor (NF)-κB signaling...
February 13, 2017: Oncogene
https://www.readbyqxmd.com/read/28190287/a-novel-de-novo-germline-mutation-glu40lys-in-akt3-causes-megalencephaly-with-growth-hormone-deficiency
#5
Masaki Takagi, Kazushige Dobashi, Keiko Nagahara, Mitsuhiro Kato, Gen Nishimura, Ryuji Fukuzawa, Satoshi Narumi, Tomonobu Hasegawa
Germline or somatic gain-of-function mutations in the v-akt murine thymoma viral oncogene homolog 3 (AKT3) have been reported to cause syndromic megalencephaly. We describe a novel germline mutation, p.Glu40Lys, in AKT3. Phenotypically, the patient presented with megalencephaly with hypotonia, apparent connective tissue laxity, and growth hormone (GH) deficiency. To our knowledge, this is the first instance of a patient with megalencephaly with GH deficiency, harboring a germline de novo mutation in AKT3. © 2016 Wiley Periodicals, Inc...
February 12, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28180109/multiple-thymoma-with-myasthenia-gravis
#6
Dong Hyun Seo, Sukki Cho
The actual incidence of multiple thymoma is unknown and rarely reported because it remains controversial whether the cases represent a disease of multicentric origin or a disease resulting from intrathymic metastasis. In this case, a patient underwent total thymectomy for multiple thymoma with myasthenia gravis via bilateral video-assisted thoracic surgery. A well-encapsulated multinodular cystic mass, measuring 57 mm×50 mm×22 mm in the right lobe of the thymus, and a well-encapsulated mass, measuring 32 mm×15 mm×14 mm in the left lobe, were found...
February 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28180106/primary-intrapulmonary-thymoma-presenting-as-a-solitary-pulmonary-nodule
#7
Woohyun Jung, Chang Hyun Kang, Young Tae Kim, In Kyu Park
Primary intrapulmonary thymoma (PIT) is a very rare lesion of uncertain pathogenesis. PIT should be considered when the histopathological appearance of a lung tumor shows features that are uncommon but similar to those of a thymoma. In this case report, we discuss the case of a 59-year-old female with a solitary pulmonary nodule that was confirmed to be PIT on the basis of pathological tests. Treatment with complete resection showed good results.
February 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28178716/invasive-haemophilus-influenzae-infection-in-patients-with-cancer
#8
Vivek Singh, Sowmya Nanjappa, Smitha Pabbathi, John N Greene
A major cause of morbidity and mortality in patients with cancer is infection. Since the introduction of the Haemophilus influenzae type b (Hib) vaccine in the United States in the 1990s, invasive H influenzae infection has become less common. We report on 5 patients with cancer and invasive H influenzae infection. A literature review was also performed of the dominant Haemophilus subtype and the clinical features associated with the infection and concomitant cancer. Of the 17 cases found in the literature, had hematological malignancies and 1 case each had thymoma, schwannoma, teratoma, and pancreatic, Merkel cell, pharyngeal, laryngeal, and rectal carcinomas...
January 2017: Cancer Control: Journal of the Moffitt Cancer Center
https://www.readbyqxmd.com/read/28174404/-two-cases-of-invasive-thymoma-with-taste-disorder
#9
Tatsuya Katayama, Shinji Hirai
Two 50s female patients with the taste disorder of sweet taste loss and stage IV a type B2 invasive thymoma underwent surgery at our hospital. One patient with myasthenia gravis (MG) developed postoperative myasthenic crisis and recovered by the treatment with plasma apheresis and steroid pulse therapy. Her taste disorder fully recovered together with her MG symptom. The taste disorder of the other patient without MG had persisted for 3 years after the surgery. The taste disorder of sweet taste loss was reported as one of non-motor symptoms caused by MG-related autoimmune mechanisms associated with thymoma, improving with the therapy for MG...
February 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28168073/two-cases-of-ectopic-hamartomatous-thymoma-masquerading-as-sarcoma
#10
Takahito Kondo, Yukiko Sato, Hiroko Tanaka, Toru Sasaki, Kazuyoshi Kawabata, Hiroki Mitani, Hiroyuki Yonekawa, Hirofumi Fukushima, Wataru Shimbashi
Ectopic hamartomatous thymoma (EHT) is an extremely rare benign tumor. EHTs are difficult to differentiate from sarcomas, especially synovial sarcomas. We encountered two cases of EHT that were referred from other hospitals because sarcoma was suspected. In these cases, fusion gene detection via polymerase chain reaction or fluorescence in situ hybridization was useful for differentiating EHT from synovial sarcoma. EHT requires accurate diagnosis before surgery to avoid excessive treatment. Both tumor location and the presence of fat inside the tumor are important imaging findings for EHT, and confirmation of spindle cells, epithelial cells, and mature adipose cells in the tumor is an important pathological finding...
2017: Case Reports in Otolaryngology
https://www.readbyqxmd.com/read/28165662/flow-cytometric-characteristics-of-extrathymic-thymocytes-in-adenoid-tissue-a-case-report-and-comparison-to-normal-thymus-and-thymoma
#11
Ji Yuan, Vasantha L Gali, Deborah A Perry, Kai Fu, Hina Qureishi, Catalina Amador-Ortiz, Timothy Greiner, Samuel J Pirruccello
BACKGROUND: Normal thymocyte precursors in secondary lymphoid organs have previously been described. It is important to recognize normal thymocyte precursors by flow cytometry to differentiate them from T-cell lymphoblastic leukemia. METHODS: A 3-year-old boy status 2 years post-allogenic cardiac transplant underwent adenoidectomy to exclude post-transplant lymphoproliferative disorder. Microscopic, immunohistochemical, and flow cytometry analyses of the adenoid were performed...
February 6, 2017: Cytometry. Part B, Clinical Cytometry
https://www.readbyqxmd.com/read/28160548/regulation-of-mirna-29c-and-its-downstream-pathways-in-preneoplastic-progression-of-triple-negative-breast-cancer
#12
Anjana Bhardwaj, Harpreet Singh, Kimal Rajapakshe, Kazunoshin Tachibana, Nivetha Ganesan, Yinghong Pan, Preethi H Gunaratne, Cristian Coarfa, Isabelle Bedrosian
Little is understood about the early molecular drivers of triple-negative breast cancer (TNBC), making the identification of women at risk and development of targeted therapy for prevention significant challenges. By sequencing a TNBC cell line-based breast cancer progression model we have found that miRNA-29c is progressively lost during TNBC tumorigenesis. In support of the tumor suppressive role of miRNA 29c, we found that low levels predict poor overall patient survival and, conversely, that ectopic expression of miRNA-29c in preneoplastic cell models inhibits growth...
January 30, 2017: Oncotarget
https://www.readbyqxmd.com/read/28149887/improved-outcomes-with-surgery-vs-medical-therapy-in-non-thymomatous-myesthenia-gravis-a-perspective-on-the-results-of-a-randomized-trial
#13
COMMENT
Olugbenga T Okusanya, Nick Hess, Neil Christie, James D Luketich, Inderpal S Sarkaria
Myasthenia gravis can be a debilitating neurological disorder that affects thousands worldwide. Thymectomy has historically been considered in patients refractory to medical therapy or with concurrent thymoma. While retrospective data and propensity matched trials have favored thymectomy in order to decrease disease severity and disease associated morbidity, no randomized data existed to clearly delineate the benefit of this practice. The reviewed paper by Wolfe et al. represents the first high-level randomized prospective study investigating the role of thymectomy in patients with non-thymomatous myasthenia gravis...
December 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28149621/minimally-invasive-thymectomy-for-thymoma-does-surgical-approach-matter-or-is-it-a-question-of-stage
#14
EDITORIAL
Andrew J Kaufman, Raja M Flores
No abstract text is available yet for this article.
December 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28149555/survival-after-subsequent-non-hodgkin-s-lymphoma-and-non-small-cell-lung-cancer-in-patients-with-malignant-thymoma
#15
Jacob S Parzen, James E Bates, Michael T Milano, Sughosh Dhakal
BACKGROUND: Survivors of malignant thymoma (MT) are at an increased risk of developing subsequent neoplasms. We compare overall survival (OS) between MT survivors who developed non-Hodgkin's lymphoma (NHL) or non-small cell lung cancer (NSCLC), and patients with first primary NHL (NHL-1) or NSCLC (NSCLC-1), respectively. METHODS: Using the population-based Surveillance, Epidemiology, and End Results (SEER) database for 1973 through 2013, 273,313 patients who had NHL-1, 21 patients with MT-NHL, 566,819 patients with NSCLC-1, and 38 patients with MT-NSCLC were identified...
December 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28147469/thymoma-and-synchronous-primary-mediastinal-seminomas-with-florid-follicular-lymphoid-hyperplasia-in-the-anterior-mediastinum-a-case-report-and-review-of-the-literature
#16
Hyang-Im Lee, In-Seok Jang, Kyung Nyeo Jeon, Gyung Hyuck Ko, Jong Sil Lee, Dong Chul Kim, Dae Hyun Song, Jeong-Hee Lee
Thymoma is the most common neoplasm of the anterior mediastinum and has malignant potential. Germ cell tumors (GCTs) found in the anterior mediastinum are usually benign, and malignant GCTs, such as seminomas, are rare. Histologically, mediastinal seminoma is indistinguishable from testicular seminoma except for site-associated morphological features such as lymphoid follicular hyperplasia. Therefore, excluding metastasis is very important. Recently, we treated a young adult patient with multiple thymic masses that occurred simultaneously...
February 2, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28145886/identification-of-novel-follicular-dendritic-cell-sarcoma-markers-fdcsp-and-srgn-by-whole-transcriptome-sequencing
#17
Luisa Lorenzi, Claudia Döring, Tobias Rausch, Vladimir Benes, Silvia Lonardi, Mattia Bugatti, Elias Campo, José Cabeçadas, Ingrid Simonitsch-Klupp, Anita Borges, Jay Mehta, Claudio Agostinelli, Stefano Aldo Pileri, Fabio Facchetti, Martin-Leo Hansmann, Sylvia Hartmann
Follicular dendritic cell (FDC)-sarcoma is a rare neoplasm with morphologic and phenotypic features of FDCs. It shows an extremely heterogeneous morphology, therefore, its diagnosis relys on the phenotype of tumor cells. Aim of the present study was the identification of new specific markers for FDC-sarcoma by whole transcriptome sequencing (WTS). Candidate markers were selected based on gene expression level and biological function. Immunohistochemistry was performed on reactive tonsils, on 22 cases of FDC-sarcomas and 214 control cases including 114 carcinomas, 87 soft tissue tumors, 5 melanomas, 5 thymomas and 3 interdigitating dendritic cell sarcomas...
January 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28144099/thymoma-masquerading-as-transfusion-dependent-anemia
#18
Javvid Muzamil, Aejaz Aziz Shiekh, Gull Mohammad Bhat, Abdul Rashid Lone, Shuaeb Bhat, Firdousa Nabi
Pure red cell aplasia (PRCA) is a known entity in clinical medicine. Patients are often transfusion dependent for their whole life. Ascertaining its etiology is always a herculean task. We received a similar transfusion-dependent patient, who on evaluation was found to have thymoma as an etiological factor. Thymoma presenting as PRCA is seen in 2%-5% patients and evaluating PRCA for thymoma is seen in 5%-13% patient. As per the WHO histopathological classification, thymoma has six types and Type A is associated with PRCA and Type B is associated with myasthenia gravis...
October 2016: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/28126540/the-impact-of-postoperative-radiotherapy-for-thymoma-and-thymic-carcinoma
#19
Matthew W Jackson, David A Palma, D Ross Camidge, Bernard L Jones, Tyler P Robin, David J Sher, Matthew Koshy, Brian D Kavanagh, Laurie E Gaspar, Chad G Rusthoven
INTRODUCTION: The optimal role for postoperative radiation therapy (PORT) for thymoma and thymic carcinoma remains controversial. We used the National Cancer Database to investigate the impact of PORT on overall survival. METHODS: Patients who underwent surgery for thymoma or thymic carcinoma were categorized into Masaoka-Koga stage groups I-IIA, IIB, III, and IV. Patients who did not undergo surgery or those who received preoperative radiation were excluded. Kaplan-Meier OS estimates, univariate (UVA) and multivariate (MVA) Cox proportional hazards regression analyses were performed...
January 24, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28124496/flow-cytometric-characteristics-of-extrathymic-thymocytes-in-adenoid-tissue-a-case-report-and-comparison-to-normal-thymus-and-thymoma
#20
Ji Yuan, Vasantha L Gali, Deborah A Perry, Kai Fu, Hina Qureishi, Catalina Amador-Ortiz, Timothy Greiner, Samuel J Pirruccello
BACKGROUND: Normal thymocyte precursors in secondary lymphoid organs have previously been described. It is important to recognize normal thymocyte precursors by flow cytometry to differentiate them from T-cell lymphoblastic leukemia. METHODS: A 3-year-old boy status 2 years post-allogenic cardiac transplant underwent adenoidectomy to exclude post-transplant lymphoproliferative disorder. Microscopic, immunohistochemical, and flow cytometry analyses of the adenoid were performed...
January 25, 2017: Cytometry. Part B, Clinical Cytometry
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