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thymic carcinoma

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https://www.readbyqxmd.com/read/28332015/doubling-time-of-thymic-epithelial-tumours-on-ct-correlation-with-histological-subtype
#1
Jooae Choe, Sang Min Lee, Soyeoun Lim, Se Hoon Choi, Namkug Kim, Kyung-Hyun Do, Joon Beom Seo
OBJECTIVES: We retrospectively evaluated the doubling time (DT) of thymic epithelial tumours (TET) according to the histological subtype on CT. METHODS: From January 2005 to June 2016, we enrolled 53 patients who had pathologically confirmed TET and at least two CT scans. Tumour size was measured using a two-dimensional method, and the DT was calculated. DTs were compared among histological subtypes, and factors associated with rapid tumour growth (DT <180 days) were assessed...
March 22, 2017: European Radiology
https://www.readbyqxmd.com/read/28329118/comparison-of-surgical-approach-and-extent-of-resection-for-masaoka-koga-stage-i-and-ii-thymic-tumours-in-europe-north-america-and-asia-an-international-thymic-malignancy-interest-group-retrospective-database-analysis%C3%A2
#2
Wentao Fang, Xiaopan Yao, Alberto Antonicelli, Zhitao Gu, Frank Detterbeck, Eric Vallières, Ralph W Aye, Alexander S Farivar, James Huang, Yue Shang, Brian E Louie
OBJECTIVES: Surgeons at different institutions worldwide choose different types of operations for thymic tumours. It is not known whether these differences affect the outcomes of the patients. METHODS: A total of 1430 patients with Masaoka-Koga pathological Stage I-II thymic tumours without myasthenia gravis or pre-treatment were identified from the International Thymic Malignancy Interest Group retrospective database. Outcomes of patients from 3 major continents (Europe, North America and Asia) were compared...
February 28, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28323731/thymic-carcinoma-with-endobronchial-metastasis-a-case-report
#3
Makoto Nagamata, Yusuke Okuma, Yukio Hosomi, Tsunekazu Hishima
Thymic carcinoma is a rare cancer, accounting for only 1% to 4% of thymic epithelial tumors. Endobronchial metastasis is a rare presentation of these tumors. A 64-year-old man presented with a cough. Lung cancer was suspected because a chest radiograph showed a 7-cm mass in the left pulmonary hilum. Computed tomography showed a mass in the anterior mediastinum and an infiltrate in the upper lobe of the left lung. Bronchoscopy demonstrated bilateral polypoid tumors in the left B bronchus and the right B bronchus...
April 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28299711/pathological-findings-in-myasthenia-gravis-patients-with-thymic-hyperplasia-and-thymoma
#4
Ping Chen, Ying-Peng Wang, Dan-Lei Mou, Zheng-Yi Li, Qiu-Min Qu, Hong-Yan Wang, Yuan Deng, Xiao-Feng Li, Ting Wang, Xian-Hao Xu, Gang Zhao
Thymectomy is routinely carried out in patients with myasthenia gravis (MG) and thymomas. However, there is still a dispute as to whether MG patients with thymic hyperplasia should undergo thymectomy. We aimed to investigate the pathological findings in the thymus in patients with co-existing MG and thymic hyperplasia or thymomas treated with thymectomy, as well as effects of immunosuppression. Thirty-three patients with MG were selected and grouped accordingly: patients with no thymic abnormalities, patients with thymic hyperplasia, and patients with thymomas...
March 15, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28291902/review-of-the-mechanisms-involved-in-the-abscopal-effect-and-future-directions-with-a-focus-on-thymic-carcinoma
#5
Paul Lesueur, François Chevalier, Dinu Stefan, Jean-Louis Habrand, Delphine Lerouge, Radj Gervais
The abscopal effect is a rare phenomenon in radiotherapy, leading to impressive tumor regression outside the radiotherapy field. In this article we describe the occurrence of a postradiotherapy abscopal effect in an 89-year-old patient suffering from a metastatic neuroendocrine large-cell thymic carcinoma, the first case of the abscopal effect related to a thymic carcinoma reported in the literature. Along with the description of this case, we discuss and review the main potential mechanisms of bystander and abscopal effects in solid tumors so as to enable clinicians to identify and control these effects more resourcefully in the age of immunotherapy and stereotactic radiotherapy...
March 3, 2017: Tumori
https://www.readbyqxmd.com/read/28281549/expression-of-pd-1-and-pd-l1-in-thymic-epithelial-neoplasms
#6
Annikka Weissferdt, Junya Fujimoto, Neda Kalhor, Jaime Rodriguez, Roland Bassett, Ignacio I Wistuba, Cesar A Moran
Thymic epithelial neoplasms are rare tumors that are difficult to diagnose and treat. Programmed death 1 (PD-1) receptor and its ligand (PD-L1) are expressed by various malignancies and are considered a prognostic factor and immunotherapeutic target. We examined the expression of both antibodies in 100 thymic epithelial neoplasms to assess their use as a biomarker and to correlate their expression with clinicopathological parameters. Whole-tissue sections of 74 thymomas and 26 thymic carcinomas were examined...
March 10, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28265732/the-role-of-18-f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-for-predicting-pathologic-response-after-induction-therapy-for-thymic-epithelial-tumors
#7
Koichi Fukumoto, Takayuki Fukui, Toshiki Okasaka, Koji Kawaguchi, Shota Nakamura, Shuhei Hakiri, Naoki Ozeki, Tomoshi Sugiyama, Katsuhiko Kato, Kohei Yokoi
BACKGROUND: We investigated the role of (18)F-fluorodeoxyglucose positron emission tomography-computed tomography (PET-CT) in predicting the effect of induction therapy in patients with thymic epithelial tumors. METHODS: Fourteen patients with thymic epithelial tumors who underwent PET-CT before and after induction therapy were retrospectively analyzed. The relationship between the change in the maximum standardized uptake value (SUVmax) in PET-CT, the response evaluation criteria in solid tumors and the pathologic response (Ef0, no necrosis of tumor cells; Ef1, some necrosis of tumor cells with more than one-third of viable tumor cells; Ef2, less than one-third of tumor cells were viable; and Ef3, no tumor cells were viable) was analyzed...
March 6, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28258440/comprehensive-characterization-of-genes-associated-with-the-tp53-signal-transduction-pathway-in-various-tumors
#8
Shumpei Ohnami, Keiichi Ohshima, Takeshi Nagashima, Kenichi Urakami, Yuji Shimoda, Junko Saito, Akane Naruoka, Keiichi Hatakeyama, Tohru Mochizuki, Masakuni Serizawa, Sumiko Ohnami, Masatoshi Kusuhara, Ken Yamaguchi
The TP53 signal transduction pathway is an attractive target for cancer treatments. In this study, we conducted a comprehensive molecular evaluation of 907 patients with cancer in Japan to identify genomic alterations in the TP53 pathway. TP53 mutations were frequently detected in many cancers, except melanoma, thymic tumors, gastrointestinal stromal tumors, and renal cancers. The frequencies of non-synonymous single nucleotide variants (SNVs) in the TP53 family members TP63 and TP73 were relatively low, although genes with increased frequencies of SNVs were as follows: PTEN (11...
March 3, 2017: Molecular and Cellular Biochemistry
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
#9
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/28183214/appearance-of-a-thymic-mass-after-treatment-of-cushing-s-syndrome
#10
Alessandro P Delitala, Laura Olita, Carla Piras, Rossella Cosseddu, Giorgio Bagella, Giuseppe Fanciulli
A 23-year-old woman was referred to our center with hirsutism, acne, weight gain, weakness, and irregular menses. Laboratory tests revealed increased levels of cortisol and sex hormones, and reduced adrenocorticotropic hormone levels. The patient underwent a right adrenalectomy. Pathology of the resected right adrenal gland showed an adrenal carcinoma. Computed tomography 8 months after the surgery revealed a thymic mass that was not detected preoperatively. The frequency of rebound thymic hyperplasia after normalization of hypercortisolism is not known, but possibly as high as 40%...
February 2017: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/28179162/loss-of-p16-ink4a-expression-and-homozygous-cdkn2a-deletion-are-associated-with-worse-outcome-and-younger-age-in-thymic-carcinomas
#11
Scott W Aesif, Marie Christine Aubry, Eunhee S Yi, Sara M Kloft-Nelson, Sarah M Jenkins, Grant M Spears, Patricia T Greipp, William R Sukov, Anja C Roden
INTRODUCTION: Thymic carcinomas are aggressive tumors. Biomarkers and alternative treatment modalities are needed. We studied the expression of p16 and cytogenetic abnormalities of cyclin-dependent kinase inhibitor 2A gene (CDKN2A) and correlated findings with clinical features and outcome in a large cohort of thymic carcinomas. METHODS: Thymic carcinomas (1963-2013) were stained with p16. Fluorescence in situ hybridization was utilized to assess for the presence of CDKN2A gene (at 9p21)...
February 5, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28174490/clinical-value-of-contrast-enhanced-ultrasound-in-improving-diagnostic-accuracy-rate-of-transthoracic-biopsy-of-anterior-medial-mediastinal-lesions
#12
Jingjing Fu, Wei Yang, Song Wang, Jing Bai, Hao Wu, Haiyue Wang, Kun Yan, Minhua Chen
OBJECTIVE: To evaluate the clinical value of contrast-enhanced ultrasound (CEUS) in transthoracic biopsy of anterior-medial mediastinal lesions. METHODS: A total of 123 patients with anterior or middle mediastinum lesions required ultrasound guided transthoracic biopsy for pathological diagnosis. Among them, 72 patients received CEUS examinations before biopsy. After CEUS, 8 patients were excluded from biopsy and the rest 64 patients underwent biopsy (CEUS group)...
December 2016: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/28168064/hypercalcemia-of-malignancy-in-thymic-carcinoma-evolving-mechanisms-of-hypercalcemia-and-targeted-therapies
#13
Cheng Cheng, Jose Kuzhively, Sanford Baim
Here we describe, to our knowledge, the first case where an evolution of mechanisms responsible for hypercalcemia occurred in undifferentiated thymic carcinoma and discuss specific management strategies for hypercalcemia of malignancy (HCM). Case Description. We report a 26-year-old male with newly diagnosed undifferentiated thymic carcinoma associated with HCM. Osteolytic metastasis-related hypercalcemia was presumed to be the etiology of hypercalcemia that responded to intravenous hydration and bisphosphonate therapy...
2017: Case Reports in Endocrinology
https://www.readbyqxmd.com/read/28163719/inferior-vena-cava-and-renal-vein-thrombosis-associated-with-thymic-carcinoma
#14
Vlad Teodor Berbecar, Roxana Jurubita, Marina Paraschiv, Bogdan Obrisca, Bogdan Sorohan, Gener Ismail
Thymic tumors are rare mediastinal tumors that can present with a wide variety of symptoms. They can cause distant manifestations and are frequently associated with paraneoplastic syndromes. In our case, we describe the evolution of a 68-year-old male whose first manifestation was thrombosis of the inferior vena cava and renal veins. Thrombosis of large abdominal veins is rare, especially without being associated with any other comorbidity or risk factors.
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28126540/the-impact-of-postoperative-radiotherapy-for-thymoma-and-thymic-carcinoma
#15
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 radiotherapy (PORT) for thymoma and thymic carcinoma remains controversial. We used the National Cancer Data Base to investigate the impact of PORT on overall survival (OS). METHODS: Patients who underwent an operation for thymoma or thymic carcinoma were categorized into Masaoka-Koga stage groups I to IIA, IIB, III, and IV. Patients who did not undergo an operation or those who received preoperative radiation were excluded...
January 25, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28123154/the-usefulness-of-positron-emission-tomography-findings-in-the-management-of-anterior-mediastinal-tumors
#16
Akihiko Kitami, Fumitoshi Sano, Shinichi Ohashi, Kosuke Suzuki, Shugo Uematsu, Takashi Suzuki, Mitsutaka Kadokura
PURPOSE: We performed a retrospective analysis to evaluate the usefulness of positron-emission tomography/computed tomography (PET/CT) findings in the classification and management of anterior mediastinal tumors. METHODS: Between 2006 and 2015, 105 patients with anterior mediastinal tumor received PET/CT. (18)F-fluorodeoxyglucose ((18)F-FDG)-PET images were obtained 60 minutes after the injection of (18)F-FDG. RESULTS: The histological classifications were as follows: thymoma (n = 49), thymic carcinoma (TC) (n = 19), malignant lymphoma (ML) (n = 8), teratoma (n = 7), thymic cyst (n = 14), and others (n = 8)...
February 20, 2017: Annals of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28119349/expression-of-pten-and-its-pseudogene-ptenp1-and-promoter-methylation-of-pten-in-non-tumourous-thymus-and-thymic-tumours
#17
Atsuko Masunaga, Mutsuko Omatsu, Toshiaki Kunimura, Shugo Uematsu, Yoshito Kamio, Akihiko Kitami, Yohei Miyagi, Kenzo Hiroshima, Takashi Suzuki
AIMS: Mutation or promoter methylation of the phosphatase tensin homologue deleted on chromosome 10 tumour suppressor gene (PTEN) promotes some cancers. Moreover, PTENP1 (PTEN pseudogene) transcript regulates PTEN expression and is thought to be associated with tumourigenesis in some cancers. Here, we investigated PTEN expression in thymic epithelium and thymic epithelial tumours. METHODS: Immunohistochemical analysis of PTEN was performed on two non-tumourous thymus (NT) samples, 33 thymomas (three type A, eight type AB, 11 type B1, six type B2, and five type B3), and four thymic carcinomas (TCs)...
January 24, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28116199/a-rare-tumor-with-a-very-rare-initial-presentation-thymic-carcinoma-as-bone-marrow-metastasis
#18
Sonam Sharma, Leelavathi Dawson
Tumors of thymus gland are rare and account for 0.2% to 1.5% of all the neoplasms. They constitute a heterogeneous group that has an unknown etiology and a complex as well as varied biology. This has led to difficulty in their histological classification and in predicting their prognostic and survival markers. Among them, thymic carcinoma is the most aggressive thymic epithelial tumor exhibiting cytological malignant features and a diversity of clinicopathological characteristics that can cause diagnostic dilemmas, misdiagnosis, and therapeutic challenge...
2017: Case Reports in Pathology
https://www.readbyqxmd.com/read/28106503/ct-and-mri-findings-of-thymic-carcinoid
#19
Aya Shimamoto, Kazuto Ashizawa, Yasuo Kido, Hideyuki Hayashi, Takeshi Nagayasu, Atsushi Kawakami, Hiroshi Mukae, Tomayoshi Hayashi, Mayumi Ohtsubo, Kazuto Shigematsu, Takahiko Nakazono, Hidetake Yabuuchi, Masataka Uetani
OBJECTIVES: To evaluate the computed tomography (CT) and magnetic resonance imaging (MRI) findings of thymic carcinoid and to compare these findings with previously published findings of thymoma. METHODS: Eleven cases of pathologically proven thymic carcinoid were reviewed retrospectively. Three patients had typical carcinoid and eight patients had atypical carcinoid. The characteristics of the tumours and related thoracic abnormalities were assessed in each case on CT and/or MRI by two chest radiologists...
January 20, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28095872/an-unusual-combined-thymic-carcinoma-composed-of-squamous-cell-carcinoma-and-type-ab-thymoma-a-rare-case-report
#20
Yufeng Jiang, Yang Liu, Xiuying Shi, Xiaoyun Mao, Yang Zhao, Chuifeng Fan
BACKGROUND: Combined thymic carcinoma is a malignant neoplasm of the thymus recently added to the 4th edition of the World Health Organization (WHO) classification of tumors of the lung, pleura, thymus and heart. It involves at least one type of thymic carcinoma and another thymic epithelial tumor. The previously used term "combined thymic epithelial tumor" has been abandoned. CASE PRESENTATION: Here, we present an unusual case of combined thymic carcinoma of the thymus in a 44-year-old male who had suffered from fever, chest pain, chest tightness and shortness of breath...
January 17, 2017: Diagnostic Pathology
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