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Renal tumours

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https://www.readbyqxmd.com/read/28208928/pulsatile-clavicular-swelling-as-the-sole-presentation-of-asymptomatic-renal-cell-carcinoma-with-an-isolated-metastasis-to-the-clavicle-a-case-report
#1
Ashwani Kumar, Nitish Arora, Paras Kumar Pandove, Garima Anand, Bharti Arora
Renal Cell Carcinoma (RCC) is notorious for its unpredictable dissemination patterns involving both lymphatic and haematogenous route without a clear-cut preponderance for any. Unlike other intra-abdominal malignancies like colorectal carcinoma, renal cell carcinoma is often known to metastasize to distant sites even after a confident and unsuspecting curative resection or often as the primary presentation constantly adding and agitating our presentation patterns for this sneaky tumour. Presented below is a case of such an unsuspecting female patient...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28205224/muc13-overexpression-in-renal-cell-carcinoma-plays-a-central-role-in-tumour-progression-and-drug-resistance
#2
Yonghua Sheng, Choa Ping Ng, Rohan Lourie, Esha T Shah, Yaowu He, Kuan Yau Wong, Inge Seim, Iulia Oancea, Christudas Morais, Penny L Jeffery, John Hooper, Glenda C Gobe, Michael A McGuckin
Metastatic renal cell carcinoma is a largely incurable disease, and existing treatments targeting angiogenesis and tyrosine kinase receptors are only partially effective. Here we reveal that MUC13, a cell surface mucin glycoprotein, is aberrantly expressed by most renal cell carcinomas, with increasing expression positively correlating with tumor grade. Importantly, we demonstrated that high MUC13 expression was a statistically significant independent predictor of poor survival in two independent cohorts, particularly in stage 1 cancers...
February 16, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28195105/hereditary-leiomyomatosis-and-renal-cell-cancer-syndrome-associated-renal-cell-carcinoma
#3
Shraddha Adamane, Sangeeta Desai, Santosh Menon
Hereditary leiomyomatosis and renal cell carcinoma (HLRCC) is a recently described entity with unknown exact prevalence. The affected individuals are predisposed to have multiple leiomyomas and renal cancer due to germline mutation in fumarate hydratase gene on chromosome 1. The knowledge of this rare tumour is essential for early recognition and institution of appropriate therapy, since they have a grave prognosis. Herein, we present the first case from India of HLRCC in a 42 year old lady who presented with a renal mass and metastasis with consequent fulminant course of disease...
January 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28193644/tumour-thrombus-of-the-inferior-vena-cava-extending-into-the-right-atrium-in-the-setting-of-colon-cancer
#4
Daniel Meyers, Nancy A Nixon, Angela Franko, Danny Ng, Vincent C Tam
Tumour thrombus is seen in renal cell and hepatocellular carcinoma, but is rarely reported in colorectal cancer. A woman aged 46 years, with metastatic colonic adenocarcinoma, was found to have a large mass in the inferior vena cava (IVC) extending into the right atrium. Although this lesion was initially thought to be bland thrombus, imaging with contrast-enhanced CT scan and contrast-enhanced ultrasound supported the diagnosis of tumour thrombus. Despite the large size of the lesion, the patient was asymptomatic...
February 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28191814/the-pathophysiologic-basis-of-anaemia-in-patients-with-malignant-diseases
#5
Umma A Ibrahim, Aminu A Yusuf, Sagir G Ahmed
Cancer patients frequently present with anaemia that may result from the direct or indirect effects of the tumor or its treatment. Anaemia is an independent adverse prognostic factor that exerts negative influence on quality of life and survival of cancer patients. Anaemia in malignant disorders often arises from an interplay of multiple aetiological and pathophysiologic mechanisms. Understanding these mechanisms will help the oncologist identify and treat specific causes of the anaemia thereby minimizing the use of blood transfusion, which is associated with many adverse effects...
September 2016: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/28188595/should-small-renal-masses-be-biopsied
#6
REVIEW
Ricardo R N Leão, Ardalan E Ahmad, Patrick O Richard
Over the last few decades, the incidence of renal cell carcinomas (RCCs) has been steadily increasing. This is primarily due to an increase in detection of small renal masses (SRMs) as a result of widespread utilization of abdominal imaging. Interestingly, up to 30% of incidentally discovered SRMs (solid lesions measuring ≤4 cm) are benign, and consequently, the definitive treatment of all SRMs is associated with a considerable risk of overtreatment. To decrease the overtreatment rate, renal tumour biopsy (RTB) has been advocated as a safe alternative to identify the pretreatment histology of these SRMs...
January 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28176962/renal-angiomyolipoma-in-pregnancy-surgical-management-with-fetal-preservation-approach-in-a-developing-setting
#7
Fred O Ugwumba, Emeka F Nnakenyi, Okechukwu C Okafor, Augustine C Onuh, Paschalina C Ezechukwu, Sunday Urube
Renal angiomyolipomas (RAML) are uncommon benign renal tumours that are associated with a tendency to rupture resulting in sometimes-torrential retroperitoneal hemorrhage as the Wunderlich syndrome or as severe potentially exsanguinating hematuria. When hemorrhage from RAML occurs in pregnancy it presents a unique challenge requiring timely and appropriately adapted intervention with the goal of preventing fatality, preserving renal function as well as preventing fetal loss if possible. We report the management of severe bleeding from RAML in pregnancy and highlight the need to adopt a management strategy that suits the practice environment and offers the patient standard and enduring care...
October 24, 2016: Clinics and Practice
https://www.readbyqxmd.com/read/28164435/childhood-neoplasms-presenting-at-autopsy-a-20-year-experience
#8
Victoria A Bryant, John Booth, Liina Palm, Michael Ashworth, Thomas S Jacques, Neil J Sebire
OBJECTIVE: The aims of the review are to establish the number of undiagnosed neoplasms presenting at autopsy in a single centre and to determine the incidence and most common causes of sudden unexpected death due to neoplasia in infancy and childhood (SUDNIC). DESIGN: Retrospective observational study of paediatric autopsies performed on behalf of Her Majesty's Coroner over a 20-year period (1996-2015; n = 2,432). Neoplasms first diagnosed at autopsy were identified from an established database and cases meeting the criteria for sudden unexpected death were further categorised...
February 6, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28162771/experimental-murine-model-of-renal-cancer
#9
B Padilla-Fernández, M B García-Cenador, P Rodríguez-Marcos, J F López-Marcos, P Antúnez-Plaza, J M Silva-Abuín, D López-Montañés, F J García-Criado, M F Lorenzo-Gómez
INTRODUCTION: The objective of this study was to determine the reproducibility in a murine model of renal tumours of various histological strains that could be useful for investigating the response to target drugs. MATERIAL AND METHODS: Development and analysis of the "in vivo" model: tumour xenograft of renal cell carcinomas with Balb/c nude athymic mice. Nontumourous human renal tissue was implanted in the interscapular region of 5 mice, chromophobe renal cell carcinoma was implanted in 5 mice (which, after checking its growth, was prepared for implantation in another 10 mice) and Fuhrman grade 2 clear cell renal cell carcinoma (CCRCC) was implanted in 5 mice (which was also subsequently implanted in 10 mice)...
February 2, 2017: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/28155290/the-diagnosis-of-bilateral-primary-renal-paragangliomas-in-a-cat
#10
Ryan B Friedlein, Alain J Carter, Robert D Last, Sarah Clift
A 9-year-old sterilised female domestic short-hair cat was referred with a history of vomiting and anorexia of 3 months' duration. Biochemistry, full-blood counts, thoracic radiographs, feline pancreatic-specific lipase, abdominal ultrasonography and feline immunodeficiency virus/feline leukaemia virus (FIV/FeLV) SNAP tests had been performed. Mild hypochloraemia and moderate hypokalaemia were evident on initial presentation. Abdominal ultrasonography initially revealed unilateral renal nodules on the left side...
January 24, 2017: Journal of the South African Veterinary Association
https://www.readbyqxmd.com/read/28151378/checkpoint-inhibition-new-treatment-options-in-urologic-cancer
#11
Daan Joost De Maeseneer, Brant Delafontaine, Sylvie Rottey
Both urothelial (UC) and renal cell cancer (RCC) are highly immunogenic tumours. Recent advances in cellular immunity understanding have resulted in a successful new class of therapeutic agents. Interaction between the programmed cell death 1 (PD1) on regulatory T-cells (Treg) and programmed cell death 1 ligand (PDL1) on cancer cells inhibits an effective immune response and is an important mechanism for cancer cells to evade the immune system. Monoclonal anti-PD1 and anti-PDL1 antibodies inhibit this interaction and are called checkpoint inhibitors...
February 2017: Acta Clinica Belgica
https://www.readbyqxmd.com/read/28143976/calvarial-metastasis-of-renal-cell-carcinoma
#12
Tabrez Suffee, Mohamed Derder, Julien Quilichini, Edouard Dezamis, Laurent Lantieri
The calvarium is an extremely unusual site of metastasis of renal cell carcinoma. We report a 62-year-old man who was enrolled for palliative medical management for an exophytic calvarial metastasis. His quality of life was greatly compromised with everyday local care and bandages due to recurrent events of infection and bleeding, limiting his social life. Surgical palliative surgery was carried out to improve the patient's quality of life. After tumour resection, the resultant defects of the calvarium and the scalp were covered by a muscular latissimus dorsi free flap and a fascia lata graft as dural substitute...
January 31, 2017: BMJ Supportive & Palliative Care
https://www.readbyqxmd.com/read/28137905/wunderlich-s-syndrome-as-a-manifestation-of-polyarteritis-nodosa
#13
Pedro Beirão, Lídia Teixeira, Patrícia Pereira, Margarida Lopes Coelho
Wunderlich syndrome is a rare clinical entity characterised by spontaneous renal haemorrhage that can be life-threatening and requires emergency attention. The most frequent aetiologies are renal tumours and vascular diseases. The authors report a case of a patient admitted with hypovolaemic shock due to a retroperitoneal haematoma in the context of polyarteritis nodosa (PAN). Prognosis of untreated PAN is very poor with 13% 5-year survival rate. Therefore, early recognition of disease and proper treatment with immunosuppressors will prevent catastrophic complications and improves survival...
January 30, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28134775/chrysin-protects-rat-kidney-from-paracetamol-induced-oxidative-stress-inflammation-apoptosis-and-autophagy-a-multi-biomarker-approach
#14
Fatih Mehmet Kandemir, Sefa Kucukler, Eyup Eldutar, Cuneyt Caglayan, İlhami Gülçin
Paracetamol (PC) is a safe analgesic and antipyretic drug at therapeutic doses, and it is widely used in clinics. However, at high doses, it can induce hepatotoxicity and nephrotoxicity. Chrysin (CR) is a natural flavonoid that has biological activities that include being an antioxidant, an anti-inflammatory, and an anti-cancer agent. The main objective of this study was to investigate the efficacy of CR against PC-induced nephrotoxicity in rats. CR was given orally via feeding needle to male Sprague Dawley rats as a single daily dose of 25 or 50 mg/kg for six days...
January 26, 2017: Scientia Pharmaceutica
https://www.readbyqxmd.com/read/28130612/assessment-of-response-to-anti-angiogenic-targeted-therapy-in-pulmonary-metastatic-renal-cell-carcinoma-r2-value-as-a-predictive-biomarker
#15
Guangyu Wu, Guiqin Liu, Wen Kong, Jianxun Qu, Shiteng Suo, Xiaosheng Liu, Jianrong Xu, Jin Zhang
PURPOSE: To evaluate the utility of MR R2*-mapping and the optimal time-point for assessing the response of pulmonary metastatic renal cell carcinoma (mRCC) to anti-angiogenic targeted therapy (aATT). MATERIALS AND METHODS: The exploration-sample group and the validation-sample group consisted of 22 and 16 patients. The parameters of MR R2*-mapping, including the R2* value at each time-point (R2*base, R2*1cyc and R2*2cyc) and change between different time-points (R2*(1cyc-base)/base, R2*(2cyc-base)/base and R2*(2cyc-1cyc)/1cyc), were evaluated with a receiver-operating-characteristic analysis, and a cut-off value derived from the clinical outcome was applied to the Kaplan-Meier method to assess the value of R2* mapping and Response-Evaluation-Criteria in Solid Tumours (RECIST) during treatment evaluation...
January 27, 2017: European Radiology
https://www.readbyqxmd.com/read/28127181/non-surgical-ablative-therapy-for-management-of-small-renal-masses-current-status-and-future-trends
#16
REVIEW
K Farrag, S Sriprasad
A large number of small renal masses (SRMs) with size less than 4 cm are being identified due to advances in diagnostic imaging. As the natural history of these tumours remains unknown, there is no reliable way to predict their behaviour or future growth. Although, partial nephrectomy is the gold standard for treatment of these tumours, ablative non-surgical therapies such as cryoablation and radiofrequency ablation provide a less invasive option of treatment with comparable oncological outcomes. In this systematic review, the principle, indications, methods of treatment, oncological control, complication and renal function of ablative therapies are critically reviewed...
March 2017: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28127180/cytoreductive-surgery-in-the-management-of-renal-tumours-rationale-current-evidence-and-future-perspectives
#17
Makarand V Khochikar
Renal cell carcinoma accounts for 3% of adult solid malignant tumours. Approximately 25% of the patients present with metastatic disease at presentation. In the era of immunotherapy (interferon alpha-2b and interleukin-2), studies showed significant survival benefit with cytoreductive nephrectomy (CRN) followed by interferon alpha-2b than interferon alpha 2-b alone. Introduction of targeted therapies (vascular endothelial growth factor receptor-tyrosine kinase inhibitors, mammalian target of rapamycin inhibitors) in 2005 generated a great interest in the management of metastatic renal cell carcinoma (mRCC) as these drugs exhibited tumour shrinkage in the primary tumour as well as in the metastatic site/s...
March 2017: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28127178/magnetic-resonance-imaging-and-the-use-in-small-renal-masses
#18
REVIEW
M Vedanayagam, B Bhattacharya, S Sriprasad
The incidence of small renal masses (SRM) has been increasing, and this is mainly attributed to the incidental finding of such masses on imaging performed in asymptomatic patients. Consequently, this calls for careful evaluation and management of these masses to determine their nature and need for treatment. This article reviews current literature regarding the evaluation and management of SRM. It focuses on the specific use of MRI in the diagnosis and management of SRM. A Medline review of the literature was performed from 1996 to the present time...
March 2017: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28124281/a-single-centre-experience-of-zero-ischaemia-laparoscopic-partial-nephrectomy-in-ireland
#19
C Browne, P E Lonergan, E M Bolton, F D'Arcy, T H Lynch
BACKGROUND: Nephron-sparing surgery in the form of partial nephrectomy is increasingly becoming the standard of care in patients with small renal tumours. Oncological outcomes for partial nephrectomy are equivalent to radical nephrectomy, however, clamping of the hilar vessels to allow resection of tumours during partial nephrectomy may cause ischaemic damage to the kidney and result in long-term renal impairment. AIM: We carried out a retrospective review of 43 patients undergoing laparoscopic partial nephrectomy (LPN) and assessed functional and oncological outcomes...
January 25, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28122802/hereditary-leiomyomatosis-and-renal-cell-cancer-syndrome-a-family-affair
#20
Jiasian Teh, Ned Kinnear, Hannah Douglass-Molloy, Derek Barrry Hennessey
A 49-year-old woman with cutaneous and uterine leiomyomas, flank pain and a family history of hereditary leiomyomatosis and renal cell cancer (HLRCC) syndrome sought genetic testing. She was found to harbour a fumarate hydratase (FH) genetic mutation and a previously undetected renal tumour. The patient underwent radical nephrectomy, and remains well at follow-up. HLRCC syndrome is a rare autosomal dominant disease, with patients at increased risk for cutaneous leiomyomas, early-onset uterine leiomyomas and aggressive renal carcinoma...
January 25, 2017: BMJ Case Reports
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