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https://www.readbyqxmd.com/read/28107759/multiple-primary-pulmonary-meningiomas-20-year-follow-up-findings-for-a-first-reported-case-confirming-a-benign-biological-nature
#1
Yukitoshi Satoh, Yuichi Ishikawa
INTRODUCTION: Primary pulmonary meningiomas (PPMs) are very rare neoplasms, and we reported the first multiple case of PPMs in 1998. Usually, PPMs are slow-growing tumors with a good prognosis. Herein, we reported a rare multiple case of PPMs with an extremely long clinical course. PRESENTATION OF THE CASE: An 84-year-old Japanese woman with a history of multiple PPMs histologically confirmed as having a right-sided slowly growing lung nodule for 20 years. In 2010, we also reported the additional clinical course in the initial case 10 years after surgery implying a benign biological nature...
January 7, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28104025/-pathological-diagnosis-and-differential-diagnosis-for-primary-pulmonary-mucinous-epithelial-tumors
#2
Z Wang, E H Wang, D G Liu
The cell origin of primary pulmonary mucinous epithelial tumors includes goblet cells, tracheobronchial mucous glands, the mucous cell metaplasia of ciliated and Clara cells, etc.There are benign, low-grade malignant potential and malignant tumors in this category. The benign tumors encompass mucous gland adenoma and mucinous cystadenoma. Ciliated muconodular papillary tumors are thought to be of low grade malignant potential or uncertain malignant potential neoplasm, while colloid adenocarcinoma and mucinous adenocarcinoma are malignant tumors...
January 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28099079/lymphangioleiomyomatosis-a-monogenic-model-of-malignancy
#3
Vera P Krymskaya, Francis X McCormack
Lymphangioleiomyomatosis (LAM) is a rare, low-grade, metastasizing neoplasm that arises from an unknown source, spreads via the lymphatics, and targets the lungs. All pulmonary structures become infiltrated with benign-appearing spindle and epithelioid cells (LAM cells) that express smooth-muscle and melanocyte-lineage markers, harbor mTOR-activating mutations in tuberous sclerosis complex (TSC) genes, and recruit abundant stromal cells. Elaboration of lymphangiogenic growth factors and matrix remodeling enzymes by LAM cells enables their access to lymphatic channels and likely drives the cystic lung remodeling that often culminates in respiratory failure...
January 14, 2017: Annual Review of Medicine
https://www.readbyqxmd.com/read/28068330/loss-of-p53-induces-leukemic-transformation-in-a-murine-model-of-jak2-v617f-driven-polycythemia-vera
#4
T Tsuruta-Kishino, J Koya, K Kataoka, K Narukawa, Y Sumitomo, H Kobayashi, T Sato, M Kurokawa
As leukemic transformation of myeloproliferative neoplasms (MPNs) worsens the clinical outcome, reducing the inherent risk of the critical event in MPN cases could be beneficial. Among genetic alterations concerning the transformation, the frequent one is TP53 mutation. Here we show that retroviral overexpression of Jak2 V617F mutant into wild-type p53 murine bone marrow cells induced polycythemia vera (PV) in the recipient mice, whereas Jak2 V617F-transduced p53-null mice developed lethal leukemia after the preceding PV phase...
January 9, 2017: Oncogene
https://www.readbyqxmd.com/read/28066838/neuroendocrine-carcinoma-of-the-ovotestis-a-case-report-and-review-of-literatures
#5
Tahereh Ashrafganjoei, Ainaz Sourati, Mahdiss Mohamadianamiri
BACKGROUND: Neuroendocine carcinoma of the gynecologic tract is rare and poses a significant clinical challenge because of tumor heterogeneity and lack of standardized guidelines for treatment. Ovotestis refers to the histology of a gonad that contains both ovarian follicles and testicular tubular elements. Ovotesticular disorder of sexual development occurs in fewer than 10% of all disorders of sexual development. Gonadal tumors with malignant potential occur in 2.6% of all cases of ovotesticular disorder of sexual development...
December 2016: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/28066666/ct-guided-percutaneous-microwave-ablation-of-pulmonary-malignant-tumors
#6
Wei-Chun Ko, Yee-Fan Lee, Yi-Chang Chen, Ning Chien, Yu-Sen Huang, Yao-Hui Tseng, Jang-Ming Lee, Hsao-Hsun Hsu, Jin-Shing Chen, Yeun-Chung Chang
BACKGROUND: Microwave ablation (MWA) of lung tumors is a new approach for local tumor control. The purpose of this retrospective study was to evaluate the preliminary results of safety and efficacy of MWA with a dynamic frequency range (902-928 MHz) and power (10-32 W) for local tumor control of thoracic malignancies. METHODS: From December 1, 2013 to February 1, 2016, there were total 32 lung tumors among 15 patients (7 men, 8 women, age range 43-82 years, mean 57...
October 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28056866/case-report-whole-exome-sequencing-of-primary-cardiac-angiosarcoma-highlights-potential-for-targeted-therapies
#7
Leah Zhrebker, Irene Cherni, Lara M Gross, Margaret M Hinshelwood, Merrick Reese, Jessica Aldrich, Joseph M Guileyardo, William C Roberts, David Craig, Daniel D Von Hoff, Robert G Mennel, John D Carpten
BACKGROUND: Primary cardiac angiosarcomas are rare, but they are the most aggressive type of primary cardiac neoplasms. When patients do present, it is with advanced pulmonary and/or cardiac symptoms. Therefore, many times the correct diagnosis is not made at the time of initial presentation. These patients have metastatic disease and the vast majority of these patients die within a few months after diagnosis. Currently the treatment choices are limited and there are no targeted therapies available...
January 5, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28055013/microrna-494-inhibits-breast-cancer-progression-by-directly-targeting-pak1
#8
Meng-Na Zhan, Xiao-Ting Yu, Jun Tang, Ci-Xiang Zhou, Chen-Long Wang, Qian-Qian Yin, Xiu-Feng Gong, Ming He, Jian-Rong He, Guo-Qiang Chen, Qian Zhao
MicroRNA (miRNA) is involved in the progression and metastasis of diverse human cancers, including breast cancer, as strong evidence has been found that miRNAs can act as oncogenes or tumor suppressor genes. Here, we show that miR-494 is decreased in human breast cancer specimens and breast cancer cell lines. Ectopic expression of miR-494 in basal-like breast cancer cell lines MDA-MB-231-LUC-D2H3LN and BT-549 inhibits clonogenic ability and metastasis-relevant traits in vitro. Moreover, ectopic expression of miR-494 suppresses neoplasm initiation as well as pulmonary metastasis in vivo...
January 5, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28050379/pulmonary-hamartoma-mimicking-malignancy-a-cytopathological-diagnosis
#9
Manjari Kishore, Prajwala Gupta, Preeti, Desh Deepak
Pulmonary Hamartomas (PH) are benign tumour-like lesions of lung with an uncommon occurrence and pose a diagnostic challenge on chest radiograph. Fine Needle Aspiration Cytology (FNAC) can lead to a definitive diagnosis as well as distinguishes these from malignant lung mass. Most of the patients are asymptomatic and incidentally detected on routine chest radiographs. We report a case of pulmonary hamartoma where the patient was symptomatic and a possibility of malignant neoplasm was considered until the FNAC concluded the diagnosis...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28043987/18f-fluorodeoxyglucose-positron-emission-tomographic-scan-in-solid-type-p-stage-i-pulmonary-adenocarcinomas-what-can-produce-false-negative-results-%C3%A2
#10
Filippo Lococo, Carla Galeone, Debora Formisano, Salvatore Bellafiore, Angelina Filice, Tartaglione Annunziata, Alfredo Cesario, Cristian Rapicetta, Federica Fioroni, Tommaso Ricchetti, Massimiliano Paci
OBJECTIVE: False-negative (FN) uptake of 18F-fluorodeoxyglucose (FDG) can be divided into those cases related to technological limitations of positron emission tomography (PET) and those related to inherent properties of neoplasms. Our goal was to clarify possible factors causing FN PET results in patients with solid-type pulmonary adenocarcinomas (PAs). METHODS: From January 2007 to December 2014, of the 255 patients with p-stage-1 non-small-cell lung cancer observed and treated (surgically) in our institution, we retrospectively reviewed the PET/computed tomography (CT) records, the clinical information, the preoperative thin-section CT images, and the pathological features [classified by the International Association for the Study of Lung Cancer/American Thoracic Society/European Respiratory Society (IASLC/ATS/ERS) subtyping criteria] of 94 consecutive solid-type p-stage-1 PAs...
January 2, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28040708/pulmonary-artery-sarcoma-mimicking-pulmonary-embolism-a-case-series
#11
Narat Srivali, Eunhee S Yi, Jay H Ryu
BACKGROUND: Pulmonary artery sarcoma (PAS) is a rare malignant neoplasm with an aggressive behavior and often difficult to distinguish from pulmonary thromboembolic disease. AIM: To assess the demographic, clinical, and radiological characteristics of PAS and clinical course. DESIGN AND METHODS: We retrospectively identified and analyzed all patients with PAS seen at Mayo Clinic in Rochester, Minnesota, between January 1, 1996 and July 31, 2015...
December 30, 2016: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28038711/smarca4-and-smarca2-deficiency-in-non-small-cell-lung-cancer-immunohistochemical-survey-of-316-consecutive-specimens
#12
Esther Herpel, Ralf J Rieker, Hendrik Dienemann, Thomas Muley, Michael Meister, Arndt Hartmann, Arne Warth, Abbas Agaimy
The chromatin remodeling switch sucrose nonfermentable (SWI/SNF) complex has been increasingly implicated in the pathogenesis and dedifferentiation of neoplasms from several organs with prognostic and potential therapeutic implications. We herein investigated the expression of the SWI/SNF complex catalytic subunits SMARCA4 (BRG1) and SMARCA2 (BRM) in 316 consecutive non-small cell lung cancer (NSCLC) specimens on tissue microarrays (171 adenocarcinomas [ADCAs], 130 squamous cell carcinomas [SCCs], 9 adenosquamous carcinomas, and 6 large cell carcinomas) excluding undifferentiated/giant cell or rhabdoid carcinomas...
February 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28031842/fatal-tumour-pulmonary-embolism
#13
Salim Rashid Masoud, Coenraad Frederik Nicolaas Koegelenberg, Abraham Christoffel van Wyk, Brian William Allwood
A 30-year-old female with no significant past medical history was referred to our facility with sudden onset of shortness of breath. She had a low clinical probability for pulmonary thromboembolism and a computed tomography angiogram showed enlarged pulmonary arteries but no in situ thrombi. She developed recurrent episodes of hypotension and hypoxia, and was transferred to the intensive care unit where she died despite active resuscitation. An autopsy revealed extensive lymphatic and pulmonary vascular tumour emboli as the immediate cause of death...
January 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28018820/acute-pulmonary-artery-obstruction-as-the-primary-manifestation-of-a-rapidly-growing-intimal-sarcoma-in-a-54-year-old-patient
#14
Sumi Westhofen, Christian Kugler, Hermann Reichenspurner, Tobias Deuse
Pulmonary artery sarcoma is a rare malignant neoplasm that is often misdiagnosed and most often only recognized postmortem during the autopsy. We present the case of a male patient with a rapidly progressive pulmonary tumor who underwent urgent pneumonectomy for increasing symptoms of chest pain and septic clinical picture. Histological analysis revealed the diagnosis of a pulmonary artery sarcoma. Despite an R1-resection and adjuvant chemotherapy, the patient is in good clinical health and free of tumor relapse 1 year after the surgery...
December 2016: Thoracic and Cardiovascular Surgeon Reports
https://www.readbyqxmd.com/read/28009602/ewsr1-fusions-with-creb-family-transcription-factors-define-a-novel-myxoid-mesenchymal-tumor-with-predilection-for-intracranial-location
#15
Yu-Chien Kao, Yun-Shao Sung, Lei Zhang, Chun-Liang Chen, Sumathi Vaiyapuri, Marc K Rosenblum, Cristina R Antonescu
Recurrent gene fusions involving EWSR1 with members of the cAMP response element binding protein (CREB) family (ATF1 and CREB1) have been reported in a diverse group of tumors including angiomatoid fibrous histiocytoma (AFH), soft tissue and gastrointestinal clear cell sarcoma, primary pulmonary myxoid sarcoma, and hyalinizing clear cell carcinoma of salivary gland. We have recently encountered a group of 5 myxoid mesenchymal tumors positive for EWSR1 fusions with one of the CREB family member (ATF1, CREB1, and CREM), with histologic features distinct from any of the previously described pathologic entities...
December 22, 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28001196/-financial-impact-of-smoking-on-health-systems-in-latin-america-a-study-of-seven-countries-and-extrapolation-to-the-regional-level
#16
Andrés Pichon-Riviere, Ariel Bardach, Federico Augustovski, Andrea Alcaraz, Luz Myriam Reynales-Shigematsu, Márcia Teixeira Pinto, Marianela Castillo-Riquelme, Esperanza Peña Torres, Diana Isabel Osorio, Leandro Huayanay, César Loza Munarriz, Belén Sáenz de Miera-Juárez, Verónica Gallegos-Rivero, Catherine De La Puente, María Del Pilar Navia-Bueno, Joaquín Caporale
Objective: Estimate smoking-attributable direct medical costs in Latin American health systems. Methods: A microsimulation model was used to quantify financial impact of cardiovascular and cerebrovascular disease, chronic obstructive pulmonary disease (COPD), pneumonia, lung cancer, and nine other neoplasms. A systematic search for epidemiological data and event costs was carried out. The model was calibrated and validated for Argentina, Bolivia, Brazil, Chile, Colombia, Mexico, and Peru, countries that account for 78% of Latin America's population; the results were then extrapolated to the regional level...
October 2016: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/27999595/seborrheic-keratoses-as-the-first-sign-of-bladder-carcinoma-case-report-of-leser-tr%C3%A3-lat-sign-in-a-rare-association-with-urinary-tract-cancer
#17
Aline Stollmeier, Bernardo Augusto Rosario, Bruna Loise Mayer, Gibran Avelino Frandoloso, Francisco Luiz Gomide Mafra Magalhães, Gustavo Lenci Marques
Introduction. Skin disorders can be the first manifestation of occult diseases. The recognition of typical paraneoplastic dermatoses may anticipate the cancer diagnosis and improve its prognosis. Although rarely observed, the sudden appearance and/or rapid increase in number and size of seborrheic keratoses can be associated with malignant neoplasms, known as the sign of Leser-Trélat. The aim of this report is to unveil a case of a patient whose recently erupted seborrheic keratoses led to investigation and consequent diagnosis of bladder cancer...
2016: Case Reports in Medicine
https://www.readbyqxmd.com/read/27995774/occult-primary-pulmonary-synovial-sarcoma-presenting-as-recurrent-spontaneous-pneumothorax-and-explosive-progression
#18
Chenglin Guo, Chengwu Liu, Qiang Pu, Feng Lin, Lunxu Liu
Primary pulmonary synovial sarcoma (PPSS) is a relatively rare neoplasm with highly progressive potential. We present an extremely rare case of PPSS presenting as recurrent pneumothorax with bullous lesions. Bullectomy was performed at the local hospital. Unfortunately, the patient was initially misdiagnosed as atypical carcinoid. Although a negative resection margin was obtained during the first surgery and a remedial operation and chemotherapy followed, the patient developed severe disease progression and died soon after...
December 20, 2016: Thoracic Cancer
https://www.readbyqxmd.com/read/27993578/-sarcomatoid-carcinomas-of-the-lung-a-clinicopathologic-study-of-86-cases-with-a-new-perspective-on-tumor-classification
#19
Annikka Weissferdt, Neda Kalhor, Arlene M Correa, Cesar A Moran
Pulmonary sarcomatoid carcinoma includes a heterogenous group of tumors which is difficult to diagnose and treat. We report the clinicopathological features of 86 such tumors, including 74 pleomorphic and 12 spindle cell carcinomas, and propose a novel approach to the classification of these neoplasms in an attempt to better guide patient management. The patients were 47 males and 39 females aged 36 to 87 years (mean, 63 years) who primarily presented with shortness of breath, cough and chest pain. Eighty-six percent of patients had a smoking history...
December 16, 2016: Human Pathology
https://www.readbyqxmd.com/read/27974718/c-myb-overexpression-in-cytology-smears-of-tracheobronchial-and-pulmonary-adenoid-cystic-carcinomas
#20
Archana George Vallonthaiel, Deepali Jain, Varsha Singh, Kavneet Kaur, Karan Madan, Vinay Kumar, Venkateswaran K Iyer, Mehar Chand Sharma
AIMS: Adenoid cystic carcinoma (AdCC) is a malignant epithelial neoplasm that occurs rarely in the lower respiratory tract (LRT). AdCC at various sites is associated with the novel fusion transcript MYB-NFIB, along with the overexpression of the Myb protein. The expression of the Myb protein in AdCC of the LRT has not been evaluated much. STUDY DESIGN: Cases of AdCC of the LRT diagnosed on cytology or histology were retrieved from our institutional archives. c-Myb expression was analyzed on immunocytochemistry/immunohistochemistry (ICC/IHC) and was correlated with clinicopathological parameters...
December 15, 2016: Acta Cytologica
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