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https://www.readbyqxmd.com/read/27913578/characterization-of-egfr-t790m-l792f-and-c797s-mutations-as-mechanisms-of-acquired-resistance-to-afatinib-in-lung-cancer
#1
Yoshihisa Kobayashi, Koichi Azuma, Hiroki Nagai, Young Hak Kim, Yosuke Togashi, Yuichi Sesumi, Masato Chiba, Masaki Shimoji, Katsuaki Sato, Kenji Tomizawa, Toshiki Takemoto, Kazuto Nishio, Tetsuya Mitsudomi
Lung cancers harboring common EGFR mutations respond to EGFR tyrosine kinase inhibitors (TKIs). We previously reported that tumors with exon 18 mutations are particularly sensitive to irreversible second-generation (2G) afatinib compared with 1G-TKIs. However, data on the mechanisms of acquired resistance to afatinib are limited. We established afatinib-resistant cells by transfecting Ba/F3 cells with common or exon 18 (G719A and Del18) mutations and subjecting them to chronic exposure to increasing concentrations of afatinib...
December 2, 2016: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/27912770/endometriosis-associated-clear-cell-carcinoma-arising-in-caesarean-section-scar-a-case-report-and-review-of-the-literature
#2
Gabriella Ferrandina, Eleonora Palluzzi, Francesco Fanfani, Stefano Gentileschi, Anna Lia Valentini, Maria Vittoria Mattoli, Ilaria Pennacchia, Giovanni Scambia, Gianfranco Zannoni
BACKGROUND: Malignant transformation has been reported in approximately 1% of the endometriosis cases; herein, we report a case of clear cell endometrial carcinoma arising from endometriosis foci located within a caesarean section scar. CASE PRESENTATION: In November 2014, a Caucasian, 44-year-old woman was transferred to our institution because of severe respiratory failure due to massive lung embolism and rapid enlargement of a subcutaneous suprapubic mass. Abdomino-pelvic magnetic resonance showed a 10...
December 3, 2016: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27911922/nucleic-acid-amplification-testing-and-sequencing-combined-with-acid-fast-staining-in-needle-biopsy-lung-tissues-for-the-diagnosis-of-smear-negative-pulmonary-tuberculosis
#3
Faming Jiang, Weiwei Huang, Ye Wang, Panwen Tian, Xuerong Chen, Zongan Liang
BACKGROUND: Smear-negative pulmonary tuberculosis (PTB) is common and difficult to diagnose. In this study, we investigated the diagnostic value of nucleic acid amplification testing and sequencing combined with acid-fast bacteria (AFB) staining of needle biopsy lung tissues for patients with suspected smear-negative PTB. METHODS: Patients with suspected smear-negative PTB who underwent percutaneous transthoracic needle biopsy between May 1, 2012, and June 30, 2015, were enrolled in this retrospective study...
2016: PloS One
https://www.readbyqxmd.com/read/27911119/phase-ii-study-of-dasatinib-in-previously-treated-patients-with-advanced-non-small-cell-lung-cancer
#4
Michael J Kelley, Gautam Jha, Debra Shoemaker, James E Herndon, Lin Gu, William T Barry, Jeffrey Crawford, Neal Ready
The Src pathway in activated in about one-third of non-small cell lung cancer (NSCLC) tumors. Dasatinib has Src-inhibitor activity. We examined the activity of dasatinib in 37 patients with advanced, previously treated NSCLC. Among the 29 patients who underwent pre-treatment biopsy for RNA biomarker analysis, 25 were treated with dasatinib 70 mg twice daily. There were no responses. Five patients discontinued treatment due to toxicity. Three patients had minor biopsy-related pneumothoraces. Given the lack of responses, no biomarkers were analyzed...
December 2, 2016: Cancer Investigation
https://www.readbyqxmd.com/read/27910800/routine-x-ray-of-the-chest-is-not-justified-in-staging-of-cutaneous-melanoma-patients
#5
Caroline Asirvatham Gjørup, Helle Westergren Hendel, Rita Kaae Pilegaard, Cecilie Balslev Willert, Lisbet Rosenkrantz Hölmich
INTRODUCTION: The incidence of cutaneous melanoma is increasing in Denmark and worldwide. However, the prevalence of distant metastases at the time of diagnosis has decreased to 1%. We therefore questioned the value of routine preoperative chest X-ray (CXR) for staging asymptomatic melanoma patients and hypothesised that routine CXR is not justified. METHODS: A retrospective study was conducted on patients undergoing wide local excision and sentinel lymph node biopsy for cutaneous melanoma in the period from 2010 to 2014...
December 2016: Danish Medical Journal
https://www.readbyqxmd.com/read/27909285/-multiple-pulmonary-sclerosing-pneumocytoma-with-abnormal-accumulation-of-fluorodeoxyglucose-positron-emission-tomography-diagnosed-by-surgical-treatment-report-of-a-case
#6
Kantaro Hara, Nobuhiro Izumi, Takuma Tsukioka, Hiroaki Komatsu, Satoshi Okada, Michihito Toda, Ryuichi Ito, Toshihiko Shibata, Noritoshi Nishiyama
A 36-year-old Chinese woman was referred to our hospital for further examination of an abnormal shadow on chest X-ray. Chest computed tomography(CT) revealed a 5 mm circular nodule in diameter in right lung S3 and a 32 mm mass in diameter in right lung S7. The S7 mass showed an abnormal accumulation of SUVmax=4.0 on positron emission tomography( PET)-CT. Transbronchial biopsy was performed, but failed to rule out possible malignancy. Differential diagnoses were multiple lung benign tumor, multiple lung metastases from unknown primary cancer, malignant lymphoma or primary lung cancer, and so on...
December 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27909283/-endobronchial-hamartoma-requiring-lobectomy-report-of-a-case
#7
Kyosuke Matsunaga, Yusuke Takanashi, Hironobu Oiki, Takamitsu Hayakawa, Shun Matsuura, Hiroshi Neyatani
We present a rare case of endobronchial hamartoma that required right middle and lower lobectomy. A 59-year-old man presented with cough and sputum lasting for 9 months. Chest X-ray revealed obstructive pneumonia of the right inferior lobe. Chest computed tomography demonstrated an intrabronchial mass lesion, size 12×12 mm, occluding the entrance of the right lower lobe bronchus associated with obstructive pneumonia of the right inferior lobe. Because transbronchial biopsy could not confirm the diagnosis, we performed a right middle and lower lobectomy to diagnose and treat obstructive pneumonia...
December 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27908166/improved-targeting-accuracy-of-lung-tumor-biopsies-with-scanning-beam-digital-x-ray-tomosynthesis-image-guidance
#8
Geoff Nelson, Meng Wu, Cameron Hinkel, Ganesh Krishna, Tobias Funk, Jarrett Rosenberg, Rebecca Fahrig
PURPOSE: Electromagnetic navigation bronchoscopy (ENB) provides improved targeting accuracy during transbronchial biopsies of suspicious nodules. The greatest weakness of ENB-based guidance is the registration divergence that exists between the planning CT, acquired days or weeks before the intervention, and the patient on the table on the day of the intervention. Augmenting ENB guidance with real-time tomosynthesis imaging during the intervention could mitigate the divergence and further improve the yield of ENB-guided transbronchial biopsies...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27906860/liquid-biopsy-for-early-detection-of-lung-cancer
#9
Paul Hofman
PURPOSE OF REVIEW: The possibility of complete recovery for a lung cancer patient depends on very early diagnosis, as it allows total surgical resection. Screening for this cancer in a high-risk population can be performed using a radiological approach, but this holds a certain number of limitations. Liquid biopsy could become an alternative and complementary screening approach to chest imaging for early diagnosis of lung cancer. RECENT FINDINGS: Several circulating biomarkers indicative of lung cancer can be investigated in blood, such as circulating tumor cells, circulating free nucleic acids (RNA and DNA) and proteins...
January 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/27906708/acute-respiratory-distress-syndrome-mimics-the-role-of-lung-biopsy
#10
Mylène Aublanc, Sophie Perinel, Claude Guérin
PURPOSE OF REVIEW: Acute respiratory distress syndrome (ARDS) mimics is a condition looking like ARDS but that does not fulfill every criterion according to the recent Berlin definition. The purpose of this review is to better delineate ARDS mimics, to discuss why the complete diagnosis of ARDS is important, and to make a brief overview on the role of open lung biopsy in this setting. RECENT FINDINGS: Recent autopsy and lung biopsy data from ARDS patients compared lung histologic findings with the new Berlin definition of ARDS...
November 30, 2016: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/27905051/seom-clinical-guideline-of-management-of-soft-tissue-sarcoma-2016
#11
A López-Pousa, J Martin Broto, J Martinez Trufero, I Sevilla, C Valverde, R Alvarez, J A Carrasco Alvarez, J Cruz Jurado, N Hindi, X Garcia Del Muro
Soft-tissue sarcomas are uncommon and heterogeneous tumors of mesenchymal origin. A soft-tissue mass that is increasing in size, greater than 5 cm, or located under deep fascia are criteria for suspicion of sarcoma. Diagnosis, treatment, and management should preferably be performed by a multidisciplinary team in reference centers. MRI and lung CT scan are mandatory for local and distant assessment. A biopsy indicating histological type and grade is needed previous to the treatment. Wide surgical resection with tumor-free tissue margin is the primary treatment for localized disease...
November 29, 2016: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/27904945/-sarcoidosis-and-uveitis-an-update
#12
REVIEW
J G Garweg
Ocular involvement in sarcoidosis is present in up to one third of patients and is frequently manifested before the underlying systemic disease has been diagnosed. With a view to the therapeutic consequences an early diagnosis of the underlying disease is advantageous. In cases of visual loss early diagnostic measures include invasive procedures, such as ultrasound-guided bronchoalveolar lavage and transbronchial biopsy, if nodular conjunctival or cutaneous manifestations which would confirm the diagnosis are not present...
November 30, 2016: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/27904816/an-unusual-presentation-of-nocardiosis-in-an-allogeneic-transplant-recipient
#13
Uroosa Ibrahim, Amina Saqib, Farhan Mohammad, Terenig Terjanian
Nocardiosis is a rare cause of opportunistic infection post hematopoietic stem cell transplant (HSCT) occurring in about 0.3% of patients. The risk factors include delayed immune reconstitution, prolonged neutropenia, and graft-versus-host disease. The most common site of infection is the lung, followed by the brain and the skin. Concomitant pulmonary and central nervous system (CNS) nocardiosis is an extremely rare entity as presented in our case. We present the case of a 72-year-old male at 137 days post transplant presenting with complaints of headache and slurred speech...
October 17, 2016: Curēus
https://www.readbyqxmd.com/read/27903834/saliva-diagnostics-current-views-and-directions
#14
Karolina Elżbieta Kaczor-Urbanowicz, Carmen Martin Carreras-Presas, Katri Aro, Michael Tu, Franklin Garcia-Godoy, David Tw Wong
In this review, we provide an update on the current and future applications of saliva for diagnostic purposes. There are many advantages of using saliva as a biofluid. Its collection is fast, easy, inexpensive, and non-invasive. In addition, saliva, as a "mirror of the body," can reflect the physiological and pathological state of the body. Therefore, it serves as a diagnostic and monitoring tool in many fields of science such as medicine, dentistry, and pharmacotherapy. Introduced in 2008, the term "Salivaomics" aimed to highlight the rapid development of knowledge about various "omics" constituents of saliva, including: proteome, transcriptome, micro-RNA, metabolome, and microbiome...
November 29, 2016: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27903698/-lung-biopsy-in-interstitial-lung-disease-balancing-the-risk-of-surgery-and-diagnostic-uncertainty-vincent-cottin-eur-respir-j-2016-48-1274-1277
#15
(no author information available yet)
No abstract text is available yet for this article.
December 2016: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/27903248/long-term-clinical-course-of-anti-glycyl-trna-synthetase-anti-ej-antibody-related-interstitial-lung-disease-pathologically-proven-by-surgical-lung-biopsy
#16
Hajime Sasano, Eri Hagiwara, Hideya Kitamura, Yasunori Enomoto, Norikazu Matsuo, Tomohisa Baba, Shinichiro Iso, Koji Okudela, Tae Iwasawa, Shinji Sato, Yasuo Suzuki, Tamiko Takemura, Takashi Ogura
BACKGROUND: Anti-glycyl-tRNA synthetase (anti-EJ) antibody is occasionally positive in patients with interstitial lung disease (ILD). We aimed to define the clinical, radiological and pathological features of patients with anti-EJ antibody-positive ILD (EJ-ILD). METHODS: We retrospectively analyzed the medical records of 12 consecutive patients with EJ-ILD who underwent surgical lung biopsy. RESULTS: The median follow-up time was 74 months (range, 17-115 months)...
December 1, 2016: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/27901069/molecular-profiling-of-circulating-tumour-cells-identifies-notch1-as-a-principal-regulator-in-advanced-non-small-cell-lung-cancer
#17
Javier Mariscal, Marta Alonso-Nocelo, Laura Muinelo-Romay, Jorge Barbazan, Maria Vieito, Alicia Abalo, Antonio Gomez-Tato, Casares de Cal Maria de Los Angeles, Tomas Garcia-Caballero, Carmela Rodriguez, Elena Brozos, Francisco Baron, Rafael Lopez-Lopez, Miguel Abal
Knowledge on the molecular mechanisms underlying metastasis colonization in Non-Small Cell Lung Cancer (NSCLC) remains incomplete. A complete overview integrating driver mutations, primary tumour heterogeneity and overt metastasis lacks the dynamic contribution of disseminating metastatic cells due to the inaccessibility to the molecular profiling of Circulating Tumour Cells (CTCs). By combining immunoisolation and whole genome amplification, we performed a global gene expression analysis of EpCAM positive CTCs from advanced NSCLC patients...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27900756/a-rare-case-of-medullary-carcinoma-thyroid-metastasizing-to-bilateral-breast-parenchyma
#18
Aamna Hassan, Maimoona Siddiqui, Sidra Jahangir
Medullary carcinoma of the thyroid (MTC) commonly spreads through the lymphatics to distant sites such as lung, liver and bone. Spread to the breast is rare. We report a case of metastatic MTC which progressed to develop nodal metastases to cer-vical and mediastinal regions, visceral metastases to the liver, lung and ultimately to bilateral breasts. Clinically it is important to distinguish metastatic breast lesions from primary breast cancer as each is managed differently. Both cytological and radio-logical investigations were done followed by excision biopsy...
2016: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/27900088/favorable-control-of-advanced-colon-adenocarcinoma-with-severe-bone-marrow-metastasis-a-case-report
#19
Fumiyasu Hanamura, Yoshihiro Shibata, Tsuyoshi Shirakawa, Miyuki Kuwayama, Hisanobu Oda, Hiroshi Ariyama, Kenichi Taguchi, Taito Esaki, Eishi Baba
Colorectal cancer (CRC) has a propensity to metastasize to the liver, lungs and regional abdominal lymph nodes, but rarely to the bone marrow. A 60-year-old man presented to the National Hospital Organization Kyushu Cancer Center with a 4-week history of persistent lower back pain, anorexia and difficulty defecating. Complete blood count revealed severe thrombocytopenia and erythroblastosis, suggesting a hematological malignancy. However, the bone marrow examination demonstrated involvement by a moderately to poorly differentiated adenocarcinoma, but no hematopoietic abnormalities...
November 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/27899694/non-small-cell-carcinoma-of-the-lung-with-osteoclast-like-giant-cells
#20
Hans Helmut Dahm
Carcinomas of the lung with benign osteoclast-like giant cells are rare. A literature search showed only 8 previously reported examples. These tumors resemble a giant cell tumor of bone. Many of these tumors, which occur in most epithelium-containing organs, are composed of an undifferentiated, sarcomatoid component that contains benign osteoclast-like giant cells and a conventional carcinoma. In some tumors the epithelial origin may be revealed by immunohistochemistry only; others lack any evidence of an epithelial component...
November 29, 2016: International Journal of Surgical Pathology
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