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https://www.readbyqxmd.com/read/28715341/an-automatic-detection-system-of-lung-nodule-based-on-multi-group-patch-based-deep-learning-network
#1
Hongyang Jiang, He Ma, Wei Qian, Mengdi Gao, Yan Li
High-efficiency lung nodule detection dramatically contributes to the risk assessment of lung cancer. It is a significant and challenging task to quickly locate the exact positions of lung nodules. Extensive work has been done by researchers around this domain for approximately two decades. However, previous computer aided detection (CADe) schemes are mostly intricate and time-consuming since they may require more image processing modules, such as the computed tomography (CT) image transformation, the lung nodule segmentation and the feature extraction, to construct a whole CADe system...
July 14, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28713683/do-we-really-care-about-incidental-lung-nodules-review-of-atypical-lung-carcinoid-and-a-proposal-for-systematic-patient-follow-up
#2
Henal Motiwala, Itisha Bansal, Pradeep Goyal, Olena Dorokhova, Yogesh Kumar, Thomas D Olsavsky, Albert DiMeo, Nishant Gupta
Atypical lung carcinoids are intermediate-grade neuroendocrine tumors (NETs) with malignant potential. They are often detected incidentally on imaging done for non-related causes, as the patients are frequently asymptomatic. Histopathology is required to confirm the diagnosis with immunohistochemistry (IHC). Due to their indolent nature, these are often diagnosed only in the advanced stages. Treatment options include chemoradiation for widespread disease versus surgery for local or minimally invasive disease...
June 2017: Translational Lung Cancer Research
https://www.readbyqxmd.com/read/28712661/managing-incidentalomas-safely-do-computed-tomography-requisitions-tell-us-what-we-need-to-know
#3
Matthew Walker, Joy Borgaonkar, Daria Manos
PURPOSE: Technological advancements and the ever-increasing use of computed tomography (CT) have greatly increased the detection of incidental findings, including tiny pulmonary nodules. The management of many "incidentalomas" is significantly influenced by a patient's history of cancer. The study aim is to determine if CT requisitions include prior history of malignancy. METHODS: Requisitions for chest CTs performed at our adult tertiary care hospital during April 2012 were compared to a cancer history questionnaire, administered to patients at the time of CT scan...
July 13, 2017: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://www.readbyqxmd.com/read/28710575/software-based-risk-stratification-of-pulmonary-adenocarcinomas-manifesting-as-pure-ground-glass-nodules-on-computed-tomography
#4
Ursula Nemec, Benedikt H Heidinger, Kevin R Anderson, Michael S Westmore, Paul A VanderLaan, Alexander A Bankier
OBJECTIVES: To assess the performance of the "Computer-Aided Nodule Assessment and Risk Yield" (CANARY) software in the differentiation and risk assessment of histological subtypes of lung adenocarcinomas manifesting as pure ground glass nodules on computed tomography (CT). METHODS: 64 surgically resected and histologically proven adenocarcinomas manifesting as pure ground-glass nodules on CT were assessed using CANARY software, which classifies voxel-densities into three risk components (low, intermediate, and high risk)...
July 14, 2017: European Radiology
https://www.readbyqxmd.com/read/28710231/tuberin-regulates-prostaglandin-receptor-mediated-viability-via-rheb-in-mtorc1-hyperactive-cells
#5
Chenggang Li, Xiaolei Liu, Yang Liu, Erik Zhang, Kantha Medepalli, Kohei Masuda, Na Li, Elizabeth J Kopras, David J Kwiatkowski, Michael T Borchers, Kathryn A Wikenheiser-Brokamp, Andrew Osterburg, Maxwell Mays, Yang Sun, David R Plas, Julia L Sun, David N Franz, Jamie K Capal, Anya Alayev, Marina K Holz, Darcy A Krueger, Brian J Siroky, Jane J Yu
Tuberous sclerosis complex (TSC) is a tumor suppressor syndrome affecting multiple organs, including the brain, skin, kidneys, heart, and lungs. TSC is associated with mutations in TSC1 or TSC2 resulting in hyperactivation of mechanistic target of rapamycin complex 1 (mTORC1). Clinical trials demonstrate that mTORC1 inhibitors decrease tumor volume and stabilize lung function in TSC patients; however, mTOR inhibitors are cytostatic not cytocidal, and long-term benefits and toxicities are uncertain. Previously, we identified rapamycin-insensitive upregulation of cyclooxygenase 2 (PTGS2/COX2) and prostaglandin E2 (PGE2) production in TSC2-deficient cells and postulate that the action of excess PGE2 and its cognate receptors (EPs) contribute to cell survival...
July 14, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28709937/detection-of-lung-cancer-and-egfr-mutation-by-electronic-nose-system
#6
Dekel Shlomi, Manal Abud, Ori Liran, Jair Bar, Naomi Gai-Mor, Maya Ilouze, Amir Onn, Alon Ben-Nun, Hossam Haick, Nir Peled
BACKGROUND: Early detection of lung cancer (LC) has been well established as a significant key point in patient survival and prognosis. New highly sensitive nanoarray sensors for exhaled Volatile Organic Compounds (VOCs) have been developed and coupled with powerful statistical programs may be used when diseases such as LC are suspected. Detection of genetic aberration mutation by nanoarray sensors is the next target. METHODS: Breath samples were taken from patients who were evaluated for suspicious pulmonary lesions...
July 11, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28709495/unusual-case-of-coexistent-pulmonary-cryptococcosis-and-tuberculosis-in-an-immuno-competent-host
#7
Sunila Jain, Vrushali Mahajan, Arvind Kumar
Coexistence of pulmonary cryptococcosis with other infections has commonly been described in immuno-suppressed individuals. In immuno-competent hosts, such coexistence is rare and mostly described in disseminated disease or uncommonly involving different sites. The simultaneous coinfection of cryptococcosis and tuberculosis of lung in an immuno-competent host is extremely rare with only one previously reported case in the literature. This is the second such case and the first to be reported in India. We describe a case of a 36-year-old immuno-competent male who presented with haemoptysis and cough...
July 2017: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/28709052/colon-cancer-metastasis-to-the-thyroid-gland-a-case-report
#8
M I Coelho, M N Albano, C E Costa Almeida, L S Reis, N Moreira, C M C Almeida
INTRODUCTION: Thyroid metastases from colorectal cancer are uncommon and few cases are described in literature. CASE PRESENTATION: A 64-year-old female patient presented with an asymptomatic right cervical nodule with a rapid growth six years after sigmoidectomy for cancer and two years after resection of colorectal lung metastases. Increased CA 19.9 was identified and a thoracoabdominal CT scan revealed the onset of new metastatic bilateral pulmonary lesions. Neck ultrasonography showed a suspicious nodule in the right thyroid lobe, and Fine-needle Aspiration Cytology (FNAC) of the nodule lead to the diagnosis of colorectal cancer metastasis...
June 28, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28706921/computer-tomography-guided-lung-biopsy-using-interactive-breath-hold-control-a-randomized-study
#9
Haseem Ashraf, Shella Krag-Andersen, Matiullah Naqibullah, Valentina Minddal, Annette Nørgaard, Therese Maria Henriette Naur, Peter Sand Myschetzky, Paul Frost Clementsen
BACKGROUND: Interactive breath-hold control (IBC) may improve the accuracy and decrease the complication rate of computed tomography (CT)-guided lung biopsy, but this presumption has not been proven in a randomized study. METHODS: Patients admitted for CT-guided lung biopsy were randomized to biopsy either with (N=201) or without (N=206) IBC. Biopsy accuracy, procedure time, radiation, and complications were compared in the two groups. Predictors for pneumothorax were analyzed...
June 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28706850/pneumothorax-caused-by-cystic-and-nodular-lung-metastases-from-a-malignant-uterine-perivascular-epithelioid-cell-tumor-pecoma
#10
Shouichi Okamoto, Moegi Komura, Yasuhisa Terao, Aiko Kurisaki-Arakawa, Takuo Hayashi, Tsuyoshi Saito, Shinsaku Togo, Akira Shiokawa, Keiko Mitani, Etsuko Kobayashi, Toshio Kumasaka, Kazuhisa Takahashi, Kuniaki Seyama
Perivascular epithelioid cell tumors (PEComas) are mesenchymal neoplasms with immunoreactivity for both melanocytic and smooth muscle markers. PEComas occur at multiple sites, and malignant PEComas can undergo metastasis, recurrence and aggressive clinical courses. Although the lung is a common metastatic site of PEComas, they usually appear as multiple nodules but rarely become cystic or cavitary. Here, we describe a female patient whose lungs manifested multiple cystic, cavity-like and nodular metastases 3 years after the resection of uterine tumors tentatively diagnosed as epithelioid smooth muscle tumors with uncertain malignant potential...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28705849/anaplastic-carcinoma-of-thyroid-gland-with-widespread-soft-tissue-metastasis-an-unusual-presentation
#11
Muhammad Hassan, Taimoor Khalid Janjua, Hira Khan Afridi, Naila Anjum Zahid
Anaplastic thyroid cancer is the rarest tumour of the thyroid gland, representing only 2% of clinically recognised thyroid cancers. The most common metastatic sites are lungs, followed by the intrathoracic and neck lymph nodes. We report the case of a 62-year-old woman who presented to our setting with multiple soft tissue nodules, thyroid mass, head swelling and weight loss. Radiological investigation showed a large thyroid mass with widespread metastasis in subcutaneous tissues of both upper limbs, chest and abdomen...
July 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28697166/cytomegalovirus-cavitary-pneumonia-in-nontransplant-pediatric-acute-lymphoblastic-leukemia-case-report-and-review-of-the-literature
#12
Francesco De Leonardis, Teresa Perillo, Rosa M Daniele, Nicola Santoro
Lung cavitary lesions are a rare finding in the nontransplant setting of a patient with acute leukemia. Among viral agents, cytomegalovirus (CMV) may cause pulmonary nodules and cavities in patients undergoing hematopoietic stem cell transplantation, but during pediatric acute lymphoblastic leukemia treatment, CMV disease is less common. Here we report the case of a boy affected by acute lymphoblastic leukemia who suffered severe cavitary CMV pneumonia during chemotherapy, and we review the current literature...
July 10, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28696640/-subsolid-pulmonary-nodules
#13
Damien Keller, Catherine Beigelman-Aubry, Igor Letovanec, Hasna Bouchaab, Michel Gonzalez, Alban Lovis, Laurent P Nicod, Romain Lazor
Subsolid nodules represent almost 20% of all pulmonary nodules found incidentally at chest computed tomography (CT). Their detection is steadily rising, in parallel with the increasing number of CT scans performed. Subsolid nodules differ from solid lung nodules in several ways: morphology, course of progression, risk of malignancy and prognosis. Although they remain a diagnostic challenge, a good correlation has been established between radiological appearance and histopathology. Whilst 75% of persistent subsolid nodules represent a form of adenocarcinoma, their prognosis is generally excellent when resected...
November 16, 2016: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28694836/metastatic-prostatic-stromal-sarcoma-a-challenging-diagnosis-on-fine-needle-aspiration-with-broad-differential-diagnosis
#14
Muhammad Siddique Khurram, Ghassan Tranesh, Ramen Sakhi, Ameer Hamza, Warda Ibrar, Roohi Bano
Prostatic stromal sarcomas (PSS) are rare solid organ mesenchymal sarcomas. PSS may pose difficult diagnostic challenges on fine needle aspiration biopsy. We report a 48-year-old man diagnosed with metastatic high grade prostatic stromal sarcoma by a CT-scan guided fine needle aspiration (FNA) biopsy of a right lower lung lobe nodule. We reviewed the literature on the epidemiologic, cyto-histological, and immunophenotypic findings and discussed the differential diagnosis for this rare entity.
2017: CytoJournal
https://www.readbyqxmd.com/read/28694742/clinical-validation-of-a-blood-based-classifier-for-diagnostic-evaluation-of-asymptomatic-individuals-with-pulmonary-nodules
#15
Charles E Birse, Jennifer L Tomic, Harvey I Pass, William N Rom, Robert J Lagier
BACKGROUND: The number of pulmonary nodules detected in the US is expected to increase substantially following recent recommendations for nationwide CT-based lung cancer screening. Given the low specificity of CT screening, non-invasive adjuvant methods are needed to differentiate cancerous lesions from benign nodules to help avoid unnecessary invasive procedures in the asymptomatic population. We have constructed a serum-based multi-biomarker panel and assessed its clinical accuracy in a retrospective analysis of samples collected from participants with suspicious radiographic findings in the Prostate, Lung, Chest and Ovarian (PLCO) cancer screening trial...
2017: Clinical Proteomics
https://www.readbyqxmd.com/read/28693908/pathology-of-pulmonary-tuberculosis-and-non-tuberculous-mycobacterial-lung-disease-facts-misconceptions-and-practical-tips-for-pathologists
#16
REVIEW
Deepali Jain, Subha Ghosh, Lucileia Teixeira, Sanjay Mukhopadhyay
Most pathologists are familiar with the microscopic features of tuberculosis and the need to examine special stains for acid-fast bacteria (AFB) in cases of granulomatous lung disease. However, misconceptions do exist, including the concept that finding AFB in "caseating granulomas" confirms the diagnosis of tuberculosis. This dogma is attributable to the high prevalence of tuberculosis in many countries, as well as unfamiliarity with the microscopic spectrum of non-tuberculous mycobacterial lung disease. This review aims to provide surgical pathologists with practical tips to identify AFB, illustrate the histologic overlap between pulmonary tuberculosis and non-tuberculous mycobacterial lung disease, and highlight the importance of cultures in this setting...
June 7, 2017: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/28693056/-the-clinical-characteristics-of-pulmonary-benign-metastasizing-leiomyoma
#17
H P Wang, J H Shi, L Zhang
Objective: Pulmonary benign metastasizing leiomyoma (PBML) is a rare entity that leiomyoma of uterus metastasized to the lung. The clinical characteristics of this rare disease were analyzed in this article. Methods: The detailed clinical records of 7 patients diagnosed as PBML at Peking Union Medical College Hospital between January 2001 and June 2015 were reviewed. Results: All patients were women with median age of 44 years (range 28-62). Symptoms included dyspnea (2/7), chest pain (1/7), cyanosis (1/7), cough (1/7) and bloody sputum (1/7), while 4/7 cases were asymptomatic...
July 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/28689358/comparison-of-bayesian-penalized-likelihood-reconstruction-versus-os-em-for-characterization-of-small-pulmonary-nodules-in-oncologic-pet-ct
#18
Brandon A Howard, Rustain Morgan, Matthew P Thorpe, Timothy G Turkington, Jorge Oldan, Olga G James, Salvador Borges-Neto
OBJECTIVE: To determine whether the recently introduced Bayesian penalized likelihood PET reconstruction (Q.Clear) increases the visual conspicuity and SUVmax of small pulmonary nodules near the PET resolution limit, relative to ordered subset expectation maximization (OS-EM). METHODS: In this institutional review board-approved and HIPAA-compliant study, 29 FDG PET/CT scans performed on a five-ring GE Discovery IQ were retrospectively selected for pulmonary nodules described in the radiologist's report as "too small to characterize", or small lung nodules in patients at high risk for lung cancer...
July 8, 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/28689245/imaging-of-renal-medullary-carcinoma-in-children-and-young-adults-a-report-from-the-children-s-oncology-group
#19
Jesse K Sandberg, Elizabeth A Mullen, Mariana M Cajaiba, Ethan A Smith, Sabah Servaes, Elizabeth J Perlman, James I Geller, Peter F Ehrlich, Nicholas G Cost, Jeffrey S Dome, Conrad V Fernandez, Geetika Khanna
BACKGROUND: Renal medullary carcinoma is a rare renal malignancy of childhood. There are no large series describing the imaging appearance of renal medullary carcinoma in children. OBJECTIVE: To characterize the clinical and imaging features of pediatric renal medullary carcinoma at initial presentation. MATERIALS AND METHODS: We retrospectively analyzed images of 25 pediatric patients with renal medullary carcinoma enrolled in the Children's Oncology Group renal tumors classification, biology and banking study (AREN03B2) from March 2006 to August 2016...
July 8, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28688971/tumor-vessel-normalization-by-the-pi3k-inhibitor-hs-173-enhances-drug-delivery
#20
Soo Jung Kim, Kyung Hee Jung, Mi Kwon Son, Jung Hee Park, Hong Hua Yan, Zhenghuan Fang, Yeo Wool Kang, Boreum Han, Joo Han Lim, Soon-Sun Hong
Tumor vessels are leaky and immature, which causes poor oxygen and nutrient supply to tumor vessels and results in cancer cell metastasis to distant organs. This instability of tumor blood vessels also makes it difficult for anticancer drugs to penetrate and reach tumors. Numerous tumor vessel normalization approaches have been investigated for improving drug delivery into tumors. In this study, we investigated whether phosphoinositide 3-kinase (PI3K) inhibitors are able to improve vascular structure and function over the prolonged period necessary to achieve effective vessel normalization...
July 6, 2017: Cancer Letters
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