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https://www.readbyqxmd.com/read/28633145/urinary-volatile-organic-compounds-as-potential-biomarkers-in-idiopathic-membranous-nephropathy
#1
Mingao Wang, Rujuan Xie, Xibei Jia, Ruichan Liu
OBJECTIVE: To detect urinary volatile organic compounds (VOCs) in patients with idiopathic membranous nephropathy (iMN) and normal controls, and whether or not the urinary VOCs can act as biomarkers for diagnosis of iMN independent of renal biopsy. MATERIALS AND METHODS: Gas chromatography/mass spectrometry (GC/MS) was used to assess the urine collected from 63 iMN patients and 15 normal controls. The statistical methods of principal component analysis (PCA) and partial least squares discriminant analysis (PLSDA) were performed to process the final data in CDF format which were converted from GC/MS data...
June 19, 2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
https://www.readbyqxmd.com/read/28619739/renal-cell-carcinoma-with-isolated-breast-metastasis
#2
Sarah M Dhannoon, Ali A Alsaad, Abdo R Asmar, Fuad H Shahin
Renal cell carcinoma (RCC) is a highly prevalent disease worldwide with many cases being metastasised to various organs during the time of initial presentation. Metastatic RCC to the breast is a rare entity and can mimic primary breast carcinoma. In this article, we present a 63-year-old Caucasian woman presented with a breast mass that was detected by screening mammography and found to have a biopsy proven grade-II clear RCC in the breast tissue. Despite the high incidence and prevalence of primary breast cancer, metastasis from extramammary should be suspected in patients with a prior history of other cancers...
June 15, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28599873/percutaneous-mr-imaging-guided-cryoablation-of-small-renal-masses-in-a-3-t-closed-bore-mr-imaging-environment-initial-experience
#3
Tim J van Oostenbrugge, Johan F Langenhuijsen, Christiaan G Overduin, Sjoerd F Jenniskens, Peter F A Mulders, Jurgen J Fütterer
PURPOSE: To assess the feasibility of percutaneous magnetic resonance (MR) imaging-guided cryoablation of small renal masses (SRMs) in a 3-T environment and to evaluate intraprocedural imaging, procedural safety, and initial outcomes. MATERIALS AND METHODS: The analysis included 9 patients (4 men; median age, 72 y; range, 70-82 y) with 9 SRMs (diameter, 12-30 mm). Lesions underwent biopsy, and cryoneedles were inserted under ultrasound guidance. Verification of needle positions and ice-ball monitoring were performed by T1-weighted volumetric interpolated breath-hold examination and T2-weighted half-Fourier acquired single-shot turbo spin-echo sequences...
June 7, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28596300/clear-cell-renal-cell-carcinoma-is-linked-to-epithelial-to-mesenchymal-transition-and-to-fibrosis
#4
Lea Landolt, Øystein Eikrem, Philipp Strauss, Andreas Scherer, David H Lovett, Christian Beisland, Kenneth Finne, Tarig Osman, Mohammad M Ibrahim, Gro Gausdal, Lavina Ahmed, James B Lorens, Jean Paul Thiery, Tuan Zea Tan, Miroslav Sekulic, Hans-Peter Marti
Clear cell renal cell carcinoma (ccRCC) represents the most common type of kidney cancer with high mortality in its advanced stages. Our study aim was to explore the correlation between tumor epithelial-to-mesenchymal transition (EMT) and patient survival. Renal biopsies of tumorous and adjacent nontumorous tissue were taken with a 16 g needle from our patients (n = 26) undergoing partial or radical nephrectomy due to ccRCC RNA sequencing libraries were generated using Illumina TruSeq(®) Access library preparation protocol and TruSeq Small RNA library preparation kit...
June 2017: Physiological Reports
https://www.readbyqxmd.com/read/28593485/diffuse-large-b-cell-lymphoma-presenting-as-bilateral-renal-infiltration-leading-to-acute-kidney-injury
#5
Tomoe Okubo, Shuma Hirashio, Minako Shimizu, Yoshiaki Kuroda, Shigehiro Doi, Takao Masaki
Acute kidney injury (AKI) because of bilateral renal infiltration is an uncommon presentation of diffuse large B-cell lymphoma (DLBCL). A 52-year-old man presented to our institution with AKI and complaints of fatigue. Ultrasonography revealed a large, 15 cm granulomatous mass arising from the bilateral kidneys. The mass was biopsied laparoscopically, and histopathological analysis revealed evidence of DLBCL. The patient subsequently underwent R-CHOP therapy (rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone)...
June 7, 2017: CEN Case Reports
https://www.readbyqxmd.com/read/28592713/pulmonary-limited-granulomatosis-with-polyangiitis-coexisting-with-mixed-connective-tissue-disease
#6
Masaru Ando, Akihiko Goto, Mari Yamasue, Yuko Usagawa, Hiroaki Oka, Takehiko Shigenaga, Jun-Ichi Kadota
Granulomatosis with polyangiitis (GPA) is a systemic disease characterized by necrotizing, granulomatous vasculitis of the upper and lower respiratory tracts and glomerulonephritis, and is classified as a classical or limited form. The classical form of GPA demonstrates the involvement of the upper respiratory tract, sinuses, lungs and kidneys, whereas the limited form is characterized by the lack of the renal involvement with female predominance. On the other hand, mixed connective tissue disease (MCTD) shows the clinical and laboratorial features of systemic lupus erythematosus, systemic sclerosis and polymyositis, along with high titers of anti-ribonucleoprotein antibodies and is characterized by good response to corticosteroid therapy and favorable prognosis...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28592028/-analysis-of-12-cases-of-exogenous-lipoid-pneumonia-confirmed-by-pathology
#7
Y X Wang, F Fang, Y F Guo, Y M Li, T Y Sun, M Zhang, J Chen, B M Fang
Objective: To study the etiological, clinical, radiological, diagnostic, therapeutic, and prognostic manifestations of exogenous lipoid pneumonia (ELP), and therefore to improve the diagnosis and treatment of this disease. Methods: The clinical data of 12 cases of ELP confirmed by pathology were retrospectively analyzed. Results: The patients consisted of 9 males and 3 females, with an average age of 73.8 years (range, 44 to 100 years). The underlying diseases were variable, including diseases affecting the general condition (multiple organ failure, chronic heart and renal insufficiency, pemphigoid, etc) and conditions with increased risk of aspiration (sequelae of cerebrovascular disease, Alzheimer's disease, advanced stage of nasopharyngeal carcinoma, paralytic ileus, etc)...
June 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28580041/imaging-diagnosis-of-a-rare-presacral-tumour
#8
Hemal Grover, Amrit Pal Ahluwalia, Sanjay Sethi
BACKGROUND: Primary tumors in the presacral (retrorectal) space are extremely rare in adults, with an estimated incidence of 0.0025 to 0.014 in large referral centers. Congenital varieties are most common and comprise two thirds of these tumors. Primary retroperitoneal sarcomas in the pelvic region are extremely rare. We report the ultrasound and the corresponding Computed Tomography (CT) features of a rare presacral fibrosarcoma in an adult woman, in whom the diagnosis was confirmed by a CT-guided biopsy...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28560833/use-of-microwave-ablation-in-the-treatment-of-patients-with-multiple-primary-malignant-tumors
#9
Yue Han, Na Shao, Xiaoming Xi, Xuezhi Hao
A 56-year-old man was admitted to our hospital in 2007, complaining of an irritating cough. Computed tomography examination demonstrated a mass in the right lung and enlargement of the hilar and mediastinal lymph nodes. Small cell lung cancer was confirmed by pathological examination after fibro-bronchoscope biopsy. The patient was treated with received sequential chemotherapy and radiotherapy. Preventive radiotherapy of the whole brain was performed after complete remission of the lung disease. Seven years after diagnosis, follow-up computed tomography revealed masses in both the liver and kidney...
May 31, 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/28560016/a-case-of-large-cell-neuroendocrine-carcinoma-of-the-bladder-with-prolonged-spontaneous-remission
#10
Vincent Chong, Jonathan Zwi, Fritha Hanning, Remy Lim, Andrew Williams, Jon Cadwallader
Large cell neuroendocrine carcinoma (LCNEC) of the urinary bladder are rare. We present a case of a 72-year-old man who presented with back pain and acute renal failure. Ultrasound showed a soft tissue mass in the base of the bladder causing bilateral ureteric obstruction. Subsequent biopsy of this mass demonstrated neuroendocrine carcinoma. He was commenced on neoadjuvant chemotherapy (carboplatin/etoposide) and proceeded to a radical cysto-prostatectomy. Histology revealed a LCNEC involving the bladder, T4a with invasion through to adipose tissue and posteriorly at perivesical resection margins...
May 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28554330/rho-associated-protein-kinase-2-rock2-a-new-target-of-autoimmunity-in-paraneoplastic-encephalitis
#11
Stoyan Popkirov, Ilya Ayzenberg, Stefanie Hahn, Jan Bauer, Yvonne Denno, Nicole Rieckhoff, Christiane Radzimski, Volkmar H Hans, Sebastian Berg, Florian Roghmann, Joachim Noldus, Christian G Bien, Sabine Skodda, Jörg Wellmer, Winfried Stöcker, Christos Krogias, Ralf Gold, Uwe Schlegel, Christian Probst, Lars Komorowski, Ramona Miske, Ingo Kleiter
Onconeural antibodies are associated with cancer and paraneoplastic encephalitis. While their pathogenic role is still largely unknown, their high diagnostic value is undisputed. In this study we describe the discovery of a novel target of autoimmunity in an index case of paraneoplastic encephalitis associated with urogenital cancer.A 75-year-old man with a history of invasive bladder carcinoma 6 years ago with multiple recurrences and a newly discovered renal cell carcinoma presented with seizures and progressive cognitive decline followed by super-refractory status epilepticus...
May 29, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/28539984/birt-hogg-dub%C3%A3-syndrome-report-of-two-cases-with-two-new-mutations
#12
Margarida Rato, Ana Filipe Monteiro, Joana Parente, João Aranha, Ermelindo Tavares
INTRODUCTION: Birt-Hogg-Dubé syndrome (BHDS) is a rare autosomal dominant genodermatosis characterized by cutaneous fibrofolliculomas and/or trichodiscomas, lung cysts, spontaneous pneumothorax and renal tumors. However, its clinical expression is highly variable. This syndrome is caused by germline mutations in the folliculin gene (FLCN) on chromosome 17p11.2. MAIN OBSERVATIONS: Two men, 60 and 39-year-old, presented with a several year history of asymptomatic whitish papules scattered over the face and neck...
March 31, 2017: Journal of Dermatological Case Reports
https://www.readbyqxmd.com/read/28538448/ultrasonography-for-preoperative-diagnosis-of-retroperitoneal-fibrosis
#13
Sheng-Jiang Chen, Ling Qin, Yu-Juan Xie, Jian-Ping Zhu, Qiang Zhang, Mei Chen
This study aimed to assess the application of ultrasonography for preoperative diagnosis of retroperitoneal fibrosis (RPF). A total of 51 patients with clinically suspected RPF underwent transabdominal ultrasonography and ultrasound-guided histopathologic biopsy (tAU-UGHB). Retroperitoneal fibrosis was diagnosed in 35 patients; of these, 31 cases (88.6%) received a diagnosis using tAU-UGHB. The ultrasonographic images mainly showed solid, irregular isoechoic masses, which were present behind the retroperitoneum and surrounded the abdominal aorta, inferior vena cava, and ureters and had clear borders with the encapsulated structures...
June 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/28537695/robotic-assisted-laparoscopic-excision-of-a-retroperitoneal-ganglioneuroma
#14
Lucas Medeiros Burttet, Fernando Jahn da Silva Abreu, Gabrielle Aguiar Varaschin, Brasil Silva, Milton Berger
INTRODUCTION: Ganglioneuromas are rare benign neoplasms of the sympathetic nervous system. We describe the case of an incidentally found ganglioneuroma in a woman. To our knowledge this is the first described case of robotic excision of a retroperitoneal ganglioneuroma. CASE: A 41-year-old female had an incidental retroperitoneal mass found during a routine US. CT scan and MRI showed an 8.3cm homogeneous mass, adjacent to left kidney upper pole, with peripheral contrast enhancement...
May 23, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28521439/arteriovenous-malformation-and-thyroid-metastasis-from-underlying-renal-cell-carcinoma-an-unusual-presentation-of-malignancy-a-case-report
#15
H J Albandar, E S Roberto, J R H See, J H Sabiers
Renal Clear Cell Carcinoma (RCC) comprises over 80% of renal malignancies in adults. Thyroid gland metastasis is rare in RCC. Few studies have described cases of RCC mistaken for benign arteriovenous malformation (AVM). To the best of our knowledge, an AVM arising from underlying RCC metastasis to the brain has not yet been reported. The current study presents a case of RCC metastasis to the thyroid gland, with an AVM identified to be a result of metastatic involvement in the brain. A 45-year-old African-American female presented with left-sided weakness, slurred speech, facial droop and seizure...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28494807/concordant-clear-cell-mesonephric-carcinoma-of-the-bladder-and-lung-adenocarcinoma-with-clear-cell-features-multiple-primaries-versus-metastatic-neoplasms-a-case-report
#16
Sarmad H Jassim, Amer Khiyami, Jane K Nguyen, Santhi Ganesan, Joseph Tomashefski, Joram Sawady
BACKGROUND: Clear cell carcinoma of the bladder is a rare variant of urinary bladder adenocarcinoma. We report a case of a patient with clear cell carcinoma of the bladder and a concordant right upper lobe pulmonary adenocarcinoma with clear cell features, and we address the role of immunohistochemistry and cytogenetic analysis in distinguishing the two primary malignancies. CASE PRESENTATION: Our patient was a 59-year-old African American woman who presented with hematuria...
May 12, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28479774/renal-medullary-carcinoma-with-an-ophthalmic-metastasis
#17
Christine Ibilibor, Allen Medway, Thomas Nelius
Renal medullary carcinoma (RMC) is a rare, aggressive primary renal malignancy that classically occurs in adolescent males with sickle cell trait and universally presents with metastatic disease at presentation. We report a case of medullary carcinoma in a young man with likely ophthalmic metastasis. We also review relevant literature available to date. The patient is a 20-year-old African-American male with a past medical history significant to for sickle cell trait who presented to the University Medical Center with cough and the right eye pain for 1 month as well as painless gross hematuria for 1 week...
April 2017: Urology Annals
https://www.readbyqxmd.com/read/28479239/renal-mass-and-localized-renal-cancer-aua-guideline
#18
Steven Campbell, Robert G Uzzo, Mohamad E Allaf, Eric B Bass, Jeffrey A Cadeddu, Anthony Chang, Peter E Clark, Brian J Davis, Ithaar H Derweesh, Leo Giambarresi, Debra A Gervais, Susie L Hu, Brian R Lane, Bradley C Leibovich, Philip M Pierorazio
PURPOSE: This AUA Guideline focuses on evaluation/counseling and management of adult patients with clinically-localized renal masses suspicious for cancer, including solid-enhancing tumors and Bosniak 3/4 complex-cystic lesions. MATERIALS/METHODS: Systematic review utilized research from the Agency for Healthcare Research and Quality (AHRQ) and additional supplementation by the authors and consultant methodologists. Evidence-based statements were based on body of evidence strength Grade A/B/C (Strong/Moderate/Conditional Recommendations, respectively) with additional statements presented as Clinical Principles or Expert Opinions...
May 4, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28477259/measuring-hemoglobin-prior-to-early-discharge-without-routine-surveillance-ultrasound-after-percutaneous-native-renal-biopsy-in-children
#19
Prakash Muthusami, Sunit Sunder, Claire Gallibois, Evan Kitamura, Dimitri Parra, Joao Amaral, Phillip John, Damien Noone, Bairbre Connolly
BACKGROUND: We aimed to evaluate the role of post-procedural hemoglobin (hb), without pre-discharge ultrasound (US), after US-guided renal biopsy in children. METHODS: A retrospective review was conducted of consecutive outpatient native kidney biopsies over an 8-year period. Procedures were performed under real-time US guidance. Data collected included number of passes, presence and size of perinephric hematoma, age, body mass index (BMI), blood pressure (BP), fasting status, hb and platelets...
May 5, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28457802/diagnostic-accuracy-of-multiparametric-magnetic-resonance-imaging-to-identify-clear-cell-renal-cell-carcinoma-in-ct1a-renal-masses
#20
Noah E Canvasser, Fernando U Kay, Yin Xi, Daniella F Pinho, Daniel Costa, Alberto Diaz de Leon, Gaurav Khatri, John R Leyendecker, Takeshi Yokoo, Aaron Lay, Nicholas Kavoussi, Ersin Koseoglu, Jeffrey A Cadeddu, Ivan Pedrosa
PURPOSE: Detection of small renal masses is increasing with the use of cross-sectional imaging, although many incidental lesions have negligible metastatic potential. Among malignant masses, clear cell renal cell carcinoma is the most prevalent and aggressive subtype, and a method to identify such histology would aid in risk stratification. Our goal was to evaluate a likelihood scale for multiparametric magnetic resonance imaging in the diagnosis of clear cell histology. METHODS: Patients with cT1a masses who underwent MRI and partial or radical nephrectomy from December 2011 to July 2015 were retrospectively reviewed...
April 27, 2017: Journal of Urology
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