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194 papers 25 to 100 followers
Yoon Jin Cha, Hye Ryun Kim, Hyo Sup Shim
BACKGROUND: Clinical outcomes of anaplastic lymphoma kinase (ALK)-rearranged non-small cell lung cancer according to ALK fusion variants are not clear. We aimed to investigate the prevalence of ALK fusion variants and to compare clinical outcomes according to ALK fusion variants. METHODS: A retrospective analysis was conducted on patients with advanced ALK-rearranged adenocarcinoma treated with chemotherapy and ALK inhibitors. ALK rearrangement was identified by fluorescence in situ hybridization and confirmed by immunohistochemistry...
October 19, 2016: Journal of Translational Medicine
Rita Dorantes-Heredia, José Manuel Ruiz-Morales, Fernando Cano-García
Lung cancer is the principal cause of cancer-related death worldwide. The use of targeted therapies, especially tyrosine kinase inhibitors (TKIs), in specific groups of patients has dramatically improved the prognosis of this disease, although inevitably some patients will develop resistance to these drugs during active treatment. The most common cancer-associated acquired mutation is the epidermal growth factor receptor (EGFR) Thr790Met (T790M) mutation. During active treatment with targeted therapies, histopathological transformation to small-cell lung carcinoma (SCLC) can occur in 3-15% of patients with non-small-cell lung carcinoma (NSCLC) tumors...
August 2016: Translational Lung Cancer Research
Maxwell L Smith
CONTEXT: Three distinct patterns of pulmonary fibrosis, including usual interstitial pneumonia, fibrotic nonspecific interstitial pneumonia, and airway-centered fibrosis, can be identified on surgical lung biopsies. OBJECTIVES: To compare the pathologic definitions, clinical and radiographic presentations, etiologies and differential diagnoses, treatments, and prognoses of usual interstitial pneumonia, fibrotic nonspecific interstitial pneumonia, and airway-centered fibrosis patterns, and to address the challenges and controversies related to pulmonary fibrosis...
March 2016: Archives of Pathology & Laboratory Medicine
Brandon T Larsen, Maxwell L Smith, Brett M Elicker, Jessica M Fernandez, Guillermo A Arbo-Oze de Morvil, Carlos A C Pereira, Kevin O Leslie
Context .- Idiopathic pulmonary fibrosis (IPF) is a distinctive clinicopathologic entity and the most common form of progressive diffuse lung scarring in older adults. Idiopathic pulmonary fibrosis manifests histopathologically as the usual interstitial pneumonia pattern. The usual interstitial pneumonia pattern is distinguished by geographically and temporally heterogeneous fibrosis that is peripherally accentuated, often with honeycombing and traction bronchiectasis. Idiopathic pulmonary fibrosis is not the only disease that leads to end-stage lung fibrosis, however, and several other entities may also cause advanced fibrosis...
September 15, 2016: Archives of Pathology & Laboratory Medicine
Cheng Shen, Xin Wang, Guowei Che
BACKGROUND: Primary salivary gland-type tumors of lung are rare. Epithelial-myoepithelial carcinoma (EMC) of the lung is a minor salivary gland-type tumor subtype. METHODS: We report a very rare case of EMC located in the peripheral left lower lobe that was diagnosed in a 58-year-old man and this is the first study in which we summarize all the patients with primary peripheral lung EMC concerned with the clinical features. Informed consent was obtained from the patient...
August 2016: Medicine (Baltimore)
Annikka Weissferdt, Neda Kalhor, Jaime Rodriguez Canales, Junya Fujimoto, Ignacio I Wistuba, Cesar A Moran
Spindle cell and pleomorphic carcinomas are currently grouped among sarcomatoid carcinomas of the lung. Due to their unusual occurrence, these tumors have not been properly assessed by immunohistochemistry. We performed a comprehensive immunohistochemical analysis of 86 of these tumors. Seventy-four pleomorphic carcinomas (57 with differentiated elements) and 12 spindle cell carcinomas were subjected to immunohistochemistry with CAM5.2, cytokeratin 7 (CK7), thyroid transcription factor 1 (TTF-1), napsin A, CK5/6, p40, desmocollin-3, Sox2, calretinin, and D2-40...
August 25, 2016: Human Pathology
Paul C Barnfield, Peter M Ellis
Platinum-based doublet chemotherapy with or without bevacizumab is the standard of care for the initial management of advanced and metastatic non-small cell lung cancer (NSCLC) without a targetable molecular abnormality. However, the majority of patients with NSCLC will ultimately develop resistance to initial platinum-based chemotherapy, and many remain candidates for subsequent lines of therapy. Randomised trials over the past 10-15 years have established pemetrexed (non-squamous histology), docetaxel, erlotinib and gefitinib as approved second-line agents in NSCLC without targetable driver mutations or rearrangements...
September 2016: Drugs
Basheer Tashtoush, Roya Memarpour, Jose Ramirez, Pablo Bejarano, Jinesh Mehta
Common variable immunodeficiency (CVID) is one of the most common primary immunodeficiencies, which is characterized by reduced serum immunoglobulin levels and B-lymphocyte dysfunction. There are many clinical manifestations of this disease, the most common of which are recurrent respiratory tract infections. Among the most recently recognized autoimmune manifestation of CVID is a disease described as granulomatous-lymphocytic interstitial lung disease (GLILD), where CVID coexists with a small airway lymphoproliferative disorder, mimicking follicular bronchiolitis, or lymphocytic interstitial pneumonitis (LIP) on histology specimens...
May 31, 2016: Clinical Respiratory Journal
Antje Prasse, Gian Kayser, Klaus Warnatz
PURPOSE OF REVIEW: Common variable immunodeficiency (CVID) is the most common primary immunodeficiency characterized by a deficiency of immunoglobulins. Approximately 30% of the patients develop autoimmune and granulomatous disease. Similar to sarcoidosis, granulomatous disease in CVID can potentially affect all organs, but the lung is the most common. Interstitial lung disease (ILD) manifests in 5-15% of CVID patients, and is present already at the initial diagnosis in the majority of patients...
September 2013: Current Opinion in Pulmonary Medicine
Joon H Park, Arnold I Levinson
Infectious complications of the lung occur quite frequently in patients with common variable immunodeficiency (CVID), a clinical syndrome that represents a primary immunodeficiency. However, there appears to be noninfectious pulmonary complications in association with CVID as well, and recently the term granulomatous-lymphocytic interstitial lung disease (GLILD) has been created to describe these noninfectious, diffuse lung disease complications that develop in CVID patients. They exhibit both granulomatous and lymphoproliferative histologic patterns, consisting of lymphocytic interstitial pneumonia (LIP), follicular bronchiolitis, and lymphoid hyperplasia...
February 2010: Clinical Immunology: the Official Journal of the Clinical Immunology Society
B Solomon, J-C Soria
No abstract text is available yet for this article.
September 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
K M Kerr, F López-Ríos
The evolution of personalised medicine in lung cancer has dramatically impacted diagnostic pathology. Current challenges centre on the growing demands placed on small tissue samples by molecular diagnostic techniques. In this review, expert recommendations are provided regarding successful identification of anaplastic lymphoma kinase (ALK)-rearranged non-small-cell lung cancer (NSCLC). Steps to correctly process and conserve tumour tissue during diagnostic testing are essential to ensure tissue availability...
September 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
B Hallberg, R H Palmer
A vast array of oncogenic variants has been identified for anaplastic lymphoma kinase (ALK). Therefore, there is a need to better understand the role of ALK in cancer biology in order to optimise treatment strategies. This review summarises the latest research on the receptor tyrosine kinase ALK, and how this information can guide the management of patients with cancer that is ALK-positive. A variety of ALK gene alterations have been described across a range of tumour types, including point mutations, deletions and rearrangements...
September 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
I Dagogo-Jack, A T Shaw
In 2007, a chromosomal rearrangement resulting in a gene fusion leading to expression of a constitutively active anaplastic lymphoma kinase (ALK) fusion protein was identified as an oncogenic driver in non-small-cell lung cancer (NSCLC). ALK rearrangements are detected in 3%-7% of patients with NSCLC and are particularly enriched in younger patients with adenocarcinoma and a never or light smoking history. Fortuitously, crizotinib, a small molecule tyrosine kinase inhibitor initially developed to target cMET, was able to be repurposed for ALK-rearranged (ALK+) NSCLC...
September 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
Jian Guan, Nan J Xiao, Min Chen, Wen L Zhou, Yao W Zhang, Shuang Wang, Yong M Dai, Lu Li, Yue Zhang, Qin Y Li, Xiang Z Li, Mi Yang, Hu B Wu, Long H Chen, Lai Y Liu
Epidermal growth factor receptor (EGFR) mutations in non-small cell lung cancer (NSCLC) are a response to EGFR-tyrosine kinase inhibitor. However, a lack of sufficient tumor tissue has been a limitation for determining EGFR mutation status in clinical practice. The objective of this study was to predict EGFR mutation status in NSCLC patients based on a model including maximum standardized uptake value (SUVmax) and clinical features.We retrospectively reviewed NSCLC patients undergoing EGFR mutation testing and pretreatment positron emission tomography/computed tomography between March 2009 and December 2013...
July 2016: Medicine (Baltimore)
Nishant Gupta, Bernie Y Sunwoo, Robert M Kotloff
Birt-Hogg-Dubé syndrome (BHD) is a rare autosomal dominant disorder caused by mutations in the Folliculin gene and is characterized by the formation of fibrofolliculomas, early onset renal cancers, pulmonary cysts, and spontaneous pneumothoraces. The exact pathogenesis of tumor and lung cyst formation in BHD remains unclear. There is great phenotypic variability in the clinical features of BHD, and patients can present with any combination of skin, pulmonary, or renal findings. More than 80% of adult patients with BHD have pulmonary cysts on high-resolution computed tomography scan of the chest...
September 2016: Clinics in Chest Medicine
Tanmay S Panchabhai, Carol Farver, Kristin B Highland
Lymphocytic interstitial pneumonia (LIP) is a rare lung disease on the spectrum of benign pulmonary lymphoproliferative disorders. LIP is frequently associated with connective tissue diseases or infections. Idiopathic LIP is rare; every attempt must be made to diagnose underlying conditions when LIP is diagnosed. Computed tomography of the chest in patients with LIP may reveal ground-glass opacities, centrilobular and subpleural nodules, and randomly distributed thin-walled cysts. Demonstrating polyclonality with immunohistochemistry is the key to differentiating LIP from lymphoma...
September 2016: Clinics in Chest Medicine
Souheil El-Chemaly, Lisa R Young
Hermansky-Pudlak syndrome (HPS) is an autosomal recessive disorder that is associated with oculocutaneous albinism, bleeding diatheses, granulomatous colitis, and highly penetrant pulmonary fibrosis in some subtypes, including HPS-1, HPS-2, and HPS-4. HPS pulmonary fibrosis shows many of the clinical, radiologic, and histologic features found in idiopathic pulmonary fibrosis, but occurs at a younger age. Despite knowledge of the underlying genetic defects, there are currently no definitive therapeutic or preventive approaches for HPS pulmonary fibrosis other than lung transplant...
September 2016: Clinics in Chest Medicine
Vincent Cottin
Eosinophilic lung diseases especially comprise eosinophilic pneumonia or as the more transient Löffler syndrome, which is most often due to parasitic infections. The diagnosis of eosinophilic pneumonia is based on characteristic clinical-imaging features and the demonstration of alveolar eosinophilia, defined as at least 25% eosinophils at BAL. Peripheral blood eosinophilia is common but may be absent at presentation in idiopathic acute eosinophilic pneumonia, which may be misdiagnosed as severe infectious pneumonia...
September 2016: Clinics in Chest Medicine
Jay H Ryu, Eunhee S Yi
Immunoglobulin G4-related disease (IgG4-RD) is a systemic fibroinflammatory disease with protean manifestations involving virtually any organ in the body. At initial clinical presentation, 1 or multiple organs may be involved. Initial descriptions focused on pancreatic disease. It has, however, become clear that IgG4-RD can cause an immune-mediated fibroinflammatory process, commonly manifesting as mass-like lesions, in various regions of the body including the thorax where any compartment can be involved. This pathologic process is characterized by infiltration of IgG4+ plasma cells and a propensity to fibrosis leading to organ dysfunction which can be prevented by early diagnosis and corticosteroid therapy...
September 2016: Clinics in Chest Medicine
2016-08-22 21:02:23
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