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https://www.readbyqxmd.com/read/29704809/causative-factors-imaging-findings-and-ct-course-of-round-atelectasis
#1
Lea Azour, Tausif Billah, Mary M Salvatore, Matthew D Cham, David S Mendelson, Corey D Eber, Adam H Jacobi
OBJECTIVE: To assess causative factors, associated imaging findings, and CT course of round atelectasis (RA). MATERIALS AND METHODS: We retrospectively reviewed CT reports for "round" or "rounded atelectasis" over a 5-year time frame. Patients with at least 2 CT scans a minimum of 6 months apart were included. Electronic medical records and clinical and imaging follow-up was reviewed for all cases. RESULTS: Study population included 50 individuals with mean age of 63 years, and 59 unique instances of RA...
April 23, 2018: Clinical Imaging
https://www.readbyqxmd.com/read/29651368/synchronous-pulmonary-neoplasms-a-chance-occurrence-or-is-there-more-than-meets-the-eye
#2
Uroosa Ibrahim, Amina Saqib, Manisha Pant, Gwenalyn Garcia, Marcel Odaimi
Primary bronchus-associated lymphoid tissue (BALT) lymphoma comprises 5% of non-Hodgkin's lymphoma (NHL) and usually has an indolent course. Synchronous primary lung cancers with BALT lymphoma are seldom seen in patients with adenocarcinoma of the lung. Synchronous squamous cell carcinoma (SCC) and BALT lymphoma is an extremely rare occurrence. We report an unusual case of stage 4 BALT lymphoma requiring treatment that revealed an underlying ipsilateral mass causing a diagnostic dilemma. An 84-year-old female with a history of systemic lupus erythematosus, deep vein thrombosis, and thrombotic microangiopathy presented to the hospital with cough and dyspnea on exertion...
February 6, 2018: Curēus
https://www.readbyqxmd.com/read/29643685/unilateral-brown-fat-suppression-on-fdg-pet-ct-detecting-sympathetic-denervation
#3
Saurabh Arora, Nishikant Avinash Damle, K Sreenivasa Reddy, Girish Kumar Parida, Abhinav Singhal, Sreedharan Thankarajan Arunraj, Chandrasekhar Bal, Roma Singh, Shobhana Raju, Dhritiman Chakraborty
We present here a case of primitive neuroectodermal tumor (PNET) who initially presented with involvement of the right 3rd rib and underwent neoadjuvant chemotherapy, rib excision, and adjuvant chemoradiotherapy and later underwent posterolateral thoracotomy, pleural nodule excision, and the right 11th rib metastatic lesion excision. Follow-up 18 F-FDG PET/CT/computed tomography revealed unilateral brown fat suppression in the form of decreased metabolic uptake in the ipsilateral cervical, axillary, and paravertebral brown fat as compared to metabolically active contralateral brown fat, likely due to paravertebral sympathetic chain damage...
April 2018: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/29616141/randomised-controlled-trial-to-compare-the-diagnostic-yield-of-positron-emission-tomography-ct-pet-ct-targeted-pleural-biopsy-versus-ct-guided-pleural-biopsy-in-suspected-pleural-malignancy-target-trial
#4
Duneesha de Fonseka, Wendy Underwood, Louise Stadon, Najib Rahman, Anthony Edey, Chris Rogers, Nick A Maskell
Introduction: Pleural malignancy, particularly malignant pleural mesothelioma (MPM) is increasing in incidence due to the long latency period from exposure to asbestos to development of the disease. MPM can be challenging to diagnose. For patients presenting without a pleural effusion, CT-guided biopsy remains the primary choice of biopsy, but the diagnostic sensitivity of this investigation is 70%-75%. Therefore, a proportion of patients will go on to require further biopsies. If the first biopsy is non-diagnostic, the chances of further non-diagnostic biopsies are high in MPM...
2018: BMJ Open Respiratory Research
https://www.readbyqxmd.com/read/29613962/mr-imaging-of-pleural-neoplasms
#5
Brett W Carter, Sonia L Betancourt, Girish S Shroff, John P Lichtenberger
The pleura may be affected by primary tumors or metastatic spread of intrathoracic or extrathoracic neoplasms. Primary pleural neoplasms represent ∼10% of all pleural tumors, and malignant lesions are more common than benign lesions. The most common primary tumors include malignant pleural mesothelioma and solitary fibrous tumor. Although pleural neoplasms may initially be evaluated with computed tomography (CT) and/or fluorodeoxyglucose positron emission tomography (PET)/CT, magnetic resonance (MR) imaging is complementary to these other imaging modalities for disease staging and evaluation of patients...
April 2018: Topics in Magnetic Resonance Imaging: TMRI
https://www.readbyqxmd.com/read/29588242/primary-spinal-malignant-mesothelioma-a-case-report-and-literature-review
#6
Fan Chen, Beifang Liu, Ying Yu, Jianyang Du, Dawei Chen
BACKGROUND: Malignant mesotheliomas are aggressive and rapidly-fatal neoplasms arising from the mesothelial cells. The most common sites of origin are the pleural and peritoneal cavities, and additionally, malignant mesotheliomas can also infrequently involve the pericardium and the tunica vaginalis. However, malignant mesothelioma occurring in the spinal canal is extremely rare. Herein, we reported a case with primary spinal malignant mesothelioma. METHODS: A literature search was using PubMed with specific key terms, inclusion criteria, and exclusion criteria...
March 24, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29573050/mri-for-solitary-pulmonary-nodule-and-mass-assessment-current-state-of-the-art
#7
Yoshiharu Ohno, Hans-Ulrich Kauczor, Hiroto Hatabu, Joon Beom Seo, Edwin J R van Beek
Since the clinical introduction of magnetic resonance imaging (MRI), the chest has been one of its most challenging applications, and many physicists and radiologists have tried since the 1980s to use MR for assessment of different lung diseases as well as mediastinal and pleural diseases. Since then, however, technical advances in sequencing, scanners, and coils, adaptation of parallel imaging techniques, utilization of contrast media, and development of postprocessing tools have been reported by many basic and clinical researchers...
March 23, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29535840/prognostic-significance-of-combined-radiologic-imaging-modalities-for-prognosis-of-clinical-ia-adenocarcinomas
#8
Hiroaki Kuroda, Shnsuke Mori, Hirotaka Tanaka, Tatsuya Yoshida, Tetsuya Mizuno, Noriaki Sakakura, Yasushi Yatabe, Hiroshi Iwata, Yukinori Sakao
Background: We previously proposed measuring tumor size using mediastinal window setting on high-resolution computed tomography (CT) as a simple and useful modality for preoperative prognostication of small adenocarcinoma. Hence, the importance of tumor volume and positron emission tomography (PET) for preoperative prognostication of clinical stage IA (cIA) adenocarcinoma was studied. Materials and Methods: We retrospectively evaluated total 324 patients who underwent pulmonary resection of cIA adenocarcinoma between July 2008 and August 2015...
February 13, 2018: Oncotarget
https://www.readbyqxmd.com/read/29535291/a-case-of-low-grade-primary-cardiac-lymphoma-with-pericardial-effusion-diagnosed-by-combined-18f-fluorodeoxyglucose-positron-emission-tomography-and-computed-tomography-fdg-pet-ct-imaging-and-effusion-cytology
#9
Hisanori Fukunaga, Yasuko Tatewaki, Tatsushi Mutoh, Hideo Shimomura, Shuzo Yamamoto, Chiaki Terao, Tomoko Totsune, Manabu Nakagawa, Yasuyuki Taki
BACKGROUND Primary cardiac lymphoma is rare and can be an aggressive disease, depending on the grade. A case is reported of low-grade primary cardiac lymphoma associated with a pericardial effusion. 18F-fluorodeoxyglucose positron emission tomography and computed tomography (FDG-PET/CT) imaging was useful in the diagnosis and in evaluating the disease activity in this case. CASE REPORT A 72-year-old Japanese woman visited a general practitioner, complaining of dyspnea associated with cardiac tamponade. Pericardiocentesis was performed, and Group V malignant cells were identified by cytology, suspicious for malignant lymphoma...
March 14, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29507793/clinical-diagnosis-of-malignant-pleural-mesothelioma
#10
REVIEW
Andrea Bianco, Tullio Valente, Maria Luisa De Rimini, Giacomo Sica, Alfonso Fiorelli
Malignant pleural mesothelioma (MPM) is a tumour which, despite progress in diagnostic procedures and biomolecular research, has poor prognosis. Symptoms reflect extension of disease and include shortness of breath and chest pain. Unexplained pleural effusion and pleural pain in patients exposed to asbestos should raise the suspicion of MPM. MPM diagnosis requires imaging procedures X-ray and computed tomography (CT) scans; magnetic resonance imaging (MRI) better defines the extension of the tumor while PET scanning provides additional information on metabolic activity, metastases, and response to treatment...
January 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29498536/-18-f-fdg-pet-ct-in-the-management-of-patients-with-malignant-pleural-mesothelioma-being-considered-for-multimodality-therapy-experience-of-a-tertiary-referral-center
#11
Elliott H St A, Metser U, de Perrot M, Cho J, Bradbury P, Veit Haibach P, Hussey D, Tau N
OBJECTIVE: To compare the N and M staging accuracy of positron emission tomography (PET) versus CT, as per the American Joint Committee on Cancer (AJCC) 8th edition in patients with malignant pleural mesothelioma (MPM) being considered for multimodality therapy in a tertiary referral center. A secondary aim was to assess survival outcome of patients chosen for surgical management after PET. METHODS: A retrospective, single institution comparison of PET and CT was performed in patients with histologically proven MPM being considered for multimodality therapy...
March 2, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29391043/precise-preoperative-diagnosis-of-struma-ovarii-with-pseudo-meigs-syndrome-mimicking-ovarian-cancer-with-the-combination-of-131-i-scintigraphy-and-18-f-fdg-pet-case-report-and-review-of-the-literature
#12
Sayaka Fujiwara, Hideaki Tsuyoshi, Toshiya Nishimura, Nozomu Takahashi, Yoshio Yoshida
BACKGROUND: Struma ovarii is a rare ovarian neoplasm that often appears malignant on conventional imaging. Pseudo-Meigs' syndrome with ascites, pleural effusion, and elevated serum CA 125 levels is much rarer and leads to misdiagnosis of ovarian cancer and unnecessary extended surgery. CASE PRESENTATION: A 50-year-old woman with abdominal distention and dyspnoea was referred to our hospital. Ultrasound, computed tomography (CT), and magnetic resonance imaging (MRI) showed a polycystic ovarian tumor with a solid component, pleural effusion, and massive ascites with negative cytology...
February 2, 2018: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29321967/teratoma-as-unusual-cause-of-chest-pain-hemoptysis-and-dyspnea-in-a-young-patient
#13
Irena Hammen, Achhe Lal Yadav
A 16-year-old girl presented with intermittent left chest pain and breathlessness on exertion for last 4 months with one episode of haemoptysis. There has been loss of appetite and weight loss of 4 kg over a period of 1 month. A chest radiograph revealed a large mass like opacity with pleural effusion in the left lung field. Computerized Tomography scanning (CT scanning) and Positron Emission Tomography/Computerized Tomography scanning (PET/CT scanning) demonstrated a 7 cm round, cystic lesion in the anterior mediastinum...
2018: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/29313814/biomarker-integrated-neoadjuvant-dasatinib-trial-in-resectable-malignant-pleural-mesothelioma
#14
Anne S Tsao, Heather Lin, Brett W Carter, J Jack Lee, David Rice, Ara Vaporcyan, Steven Swisher, Reza Mehran, John Heymach, Monique Nilsson, Youhong Fan, Maria Nunez, Lixia Diao, Jing Wang, Junya Fujimoto, Ignacio I Wistuba, Waun Ki Hong
INTRODUCTION: Window of opportunity trials in malignant pleural mesothelioma (MPM) are challenging but can yield important translational information about a novel agent. METHODS: We treated patients with MPM (N = 24) with 4 weeks of oral dasatinib followed by surgery with or without radiotherapy and then an optional 2 years of maintenance dasatinib. The primary end point was biomarker modulation of phosphorylated (p) SrcTyr419 . RESULTS: For all patients, the median progression-free survival (PFS) was 7...
February 2018: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/29300270/18f-fluorodeoxyglucose-pet-ct-and-dynamic-contrast-enhanced-mri-as-imaging-biomarkers-in-malignant-pleural-mesothelioma
#15
David O Hall, Clare E Hooper, Julie Searle, Michael Darby, Paul White, John E Harvey, Jeremy P Braybrooke, Nick A Maskell, Vidan Masani, Iain D Lyburn
PURPOSE: The purpose of this study was to compare the use of fluorine-18-fluorodeoxyglucose (F-FDG) PET with computed tomography (CT) and dynamic contrast-enhanced (DCE) MRI to predict prognosis and monitor treatment in malignant pleural mesothelioma. PATIENTS AND METHODS: F-FDG PET/CT and DCE-MRI studies carried out as part of the South West Area Mesothelioma Pemetrexed trial were used. F-FDG PET/CT and DCE-MRI studies were carried out before treatment, and after two cycles of chemotherapy, on patients treated with pemetrexed and cisplatin...
February 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29230956/prevalence-of-non-18-f-fluorodeoxyglucose-avid-incidental-findings-of-clinical-significance-on-whole-body-positron-emission-tomography-computed-tomography-a-review-of-500-consecutive-cases
#16
James A Sheldon, Kelvin K Yap, Kim L Taubman, Stephen M Schlicht
INTRODUCTION: The prevalence of incidental18 F-fluorodeoxyglucose (FDG)-avid findings on positron emission tomography-computed tomography (PET/CT) has been extensively described. Few studies, however, have assessed the prevalence and significance of non-FDG-avid findings; pathology that is identified on review of the low-dose, non-contrast CT. The aim of this study was to determine the overall prevalence of non FDG-avid incidental findings on PET/CT and the prevalence of 'clinically significant' non FDG-avid pathology...
December 11, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/29228638/thoracic-radiation-induced-pleural-effusion-and-risk-factors-in-patients-with-lung-cancer
#17
Jing Zhao, Regina M Day, Jian-Yue Jin, Leslie Quint, Hadyn Williams, Catherine Ferguson, Li Yan, Maurice King, Ahmad Albsheer, Martha Matuszak, Feng-Ming Spring Kong
The risk factors and potential practice implications of radiation-induced pleural effusion (RIPE) are undefined. This study examined lung cancer patients treated with thoracic radiation therapy (TRT) having follow-up computed tomography (CT) or 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET)/CT. Increased volumes of pleural effusion after TRT without evidence of tumor progression was considered RIPE. Parameters of lung dose-volume histogram including percent volumes irradiated with 5-55 Gy (V5-V55) and mean lung dose (MLD) were analyzed by receiver operating characteristic analysis...
November 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228566/targeting-cxcr4-with-68-ga-pentixafor-a-suitable-theranostic-approach-in-pleural-mesothelioma
#18
Constantin Lapa, Stefan Kircher, Andreas Schirbel, Andreas Rosenwald, Saskia Kropf, Theo Pelzer, Thorsten Walles, Andreas K Buck, Wolfgang A Weber, Hans-Juergen Wester, Ken Herrmann, Katharina Lückerath
C-X-C motif chemokine receptor 4 (CXCR4) is a key factor for tumor growth and metastasis in several types of human cancer. This study investigated the feasibility of CXCR4-directed imaging with positron emission tomography/computed tomography (PET/CT) using [68 Ga]Pentixafor in malignant pleural mesothelioma. Six patients with pleural mesothelioma underwent [68 Ga]Pentixafor-PET/CT. 2'-[18 F]fluoro-2'-deoxy-D-glucose ([18 F]FDG)-PET/CT (4/6 patients) and immunohistochemistry obtained from biopsy or surgery (all) served as standards of reference...
November 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/29215407/dilated-internal-thoracic-vertebral-venous-plexus-simulating-bone-metastases-on-fdg-pet-ct
#19
Nir Hod, Reut Anconina, Daniel Levin, Dina Ezroh Kazap, Sophie Lantsberg
A 42-year-old woman with a newly diagnosed malignant thymoma underwent FDG PET/CT, which demonstrated an increased uptake in anterior mediastinal tumor and several pleural masses in the right hemithorax, compatible with "drop metastases." In addition, contrast-enhanced CT images showed hyperdense abnormality in T2 vertebral body, congruent with intensely increased FDG uptake, raising suspicion of skeletal metastasis. This is a rare but important potential pitfall either in CT and FDG PET/CT-a "false-positive" bony lesion not attributed to skeletal metastasis but to dilated internal thoracic vertebral venous plexus associated with collateral circulation due to superior vena cava syndrome...
February 2018: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28987666/a-comparative-analysis-of-dual-phase-dual-energy-ct-and-fdg-pet-ct-for-the-prediction-of-histopathological-invasiveness-of-non-small-cell-lung-cancer
#20
Rintaro Ito, Shingo Iwano, Hironori Shimamoto, Hiroyasu Umakoshi, Koji Kawaguchi, Shinji Ito, Katsuhiko Kato, Shinji Naganawa
PURPOSE: To compare dual-phase dual-energy CT (DE-CT) with FDG-PET/CT for predicting histopathological locoregional invasiveness of non-small cell lung cancers (NSCLCs). MATERIALS AND METHODS: We selected 63 consecutive patients with NSCLC lesions (37 males, 26 females; age range, 44-85 years; mean age, 69 years) who were evaluated preoperatively by both DE-CT and PET/CT at our institution. Postoperative microscopic invasiveness (lymphatic permeation, vascular invasion, and/or pleural involvement) was reviewed, and we defined locoregionally invasive tumors as those that had at least one positive finding of microscopic invasiveness...
October 2017: European Journal of Radiology
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