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Angiomyolipoma

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https://www.readbyqxmd.com/read/28415927/transarterial-embolization-for-renal-angiomyolipomas-a-single-centre-experience-in-79-patients
#1
Chengen Wang, Min Yang, Xiaoqiang Tong, Jian Wang, Haitao Guan, Guochen Niu, Ziguang Yan, Bihui Zhang, Yinghua Zou
Objective To evaluate the long-term efficacy and safety of selective arterial embolization (SAE) in the treatment of renal angiomyolipomas (AMLs). Methods This was a retrospective review of medical records and imaging findings from patients with renal AMLs who attended our clinic and received SAE between January 2007 and January 2014. Only patents with complete medical records, preoperative computed tomography scans using typical imaging and follow-up data were included. Results A total of 79 patients were enrolled in the study...
April 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28415596/renal-mass-biopsy-using-raman-spectroscopy-identifies-malignant-and-benign-renal-tumors-potential-for-pre-operative-diagnosis
#2
Yufei Liu, Zhebin Du, Jin Zhang, Haowen Jiang
The accuracy of renal mass biopsy to diagnose malignancy can be affected by multiple factors. Here, we investigated the feasibility of Raman spectroscopy to distinguish malignant and benign renal tumors using biopsy specimens. Samples were collected from 63 patients who received radical or partial nephrectomy, mass suspicious of cancer and distal parenchyma were obtained from resected kidney using an 18-gauge biopsy needle. Four Raman spectra were obtained for each sample, and Discriminant Analysis was applied for data analysis...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414661/delayed-presentation-of-tuberour-sclerosis-complex-in-adult-women
#3
J Manalac, S Sadd, G Akoghlanian, T Benoit-Clark
INTRODUCTION: Tuberous sclerosis complex (TSC); is an autosomal dominant disorder characterized by the formation of hamartomatous lesions in multiple organs, with a birth incidence of around one in 10,000. Although it usually manifests itself in early life, we present a case of an adult woman who we diagnosed with TSC. CASE: A 27 year old woman presented to Emergency Department with worsening right flank pain and progressive dyspnea. Physical examination findings revealed Shagreen patches and multiple angiomyolipomas of the skin...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28413382/angiomyolipoma-with-epithelial-cysts-masquerading-as-a-cystic-renal-cell-carcinoma
#4
Andrew Wood, Fiona Young, Marie O'Donnell
Angiomyolipoma with epithelial cysts (AMLEC) is a very uncommon renal tumor. AMLEC has a characteristic histological appearance and immunohistochemical staining pattern, knowledge of which should preclude misdiagnosis by pathologists. We present a rare case of an AMLEC which was suspected to be a cystic renal cell carcinoma radiologically. We describe the characteristic immunological staining pattern and ultrastructural features of this lesion and discuss the potential differential diagnoses.
January 2017: Current Urology
https://www.readbyqxmd.com/read/28407628/super-selective-artery-embolization-before-laparoscopic-partial-nephrectomy-in-treating-renal-angiomyolipoma
#5
Chao Qin, YiChun Wang, Pengchao Li, Pu Li, Jun Tao, Pengfei Shao, Qiang Lv
INTRODUCTION: To investigate the feasibility and efficiency of super-selective artery embolization (SAE) before laparoscopic partial nephrectomy (LPN) in treating renal angiomyolipoma (RAML). MATERIALS AND METHODS: A retrospective analysis was conducted on 36 consecutive patients who underwent SAE before LPN (group A, n = 16) or LPN directly (group B, n = 20) from June 2010 to March 2016. Intraoperative blood loss, blood transfusion, operation time, warm ischemia time (WIT), and prognosis were compared between groups...
April 14, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28400076/can-tumor-to-cortex-echogenicity-ratio-differentiate-angiomyolipomas-from-other-hyper-echoic-renal-masses
#6
Peiman Habibollahi, Anil Chauhan, Laith R Sultan, Lisa P Jones, Chandra M Sehgal
A retrospective study was performed to evaluate the diagnostic value of tumor-to-cortex echogenicity ratio (TCER) in the characterization of hyper-echoic renal masses. The radiology database was queried between 2012 and 2014 for hyper-echoic renal masses on the basis of defined exclusion and inclusion criteria. Each included mass was characterized as either an angiomyolipoma (AML) or a non-AML based on pre-defined criteria. The ratio of renal mass echogenicity to that of adjacent renal cortex (TCER) was calculated for each mass using commercially available software...
April 8, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28398159/ruptured-angiomyolipoma-of-the-kidney-a-rare-differential-diagnosis-of-flank-pain
#7
Maximilian Peter Brandt, Igor Tsaur, Stefan Vallo, Marieke Krimphove, Claudia Frellesen, Thomas Vogl, Thomas Hoefner, Georg Bartsch, Axel Haferkamp, Christian Thomas
No abstract text is available yet for this article.
April 11, 2017: Scandinavian Journal of Urology
https://www.readbyqxmd.com/read/28387661/effectiveness-and-safety-of-laparoscopic-enucleation-combined-with-selective-arterial-embolization-for-renal-angiomyolipoma
#8
Dong Wang, Han-Zhong Li, Zhi-Gang Ji
OBJECTIVE: This study aims to investigate the clinical value of laparoscopic enucleation combined with selective arterial embolization for the treatment of renal angiomyolipoma. METHODS: Data of patients who underwent laparoscopic nephron-sparing surgery for renal angiomyolipoma between July 2013 and November 2014 in our center were analyzed. RESULTS: Before surgery, 19 patients underwent selective arterial embolization, while 24 patients did not receive this treatment...
March 31, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28386314/recent-advances-and-challenges-of-mtor-inhibitors-use-in-the-treatment-of-patients-with-tuberous-sclerosis-complex
#9
REVIEW
Filipe Palavra, Conceição Robalo, Flávio Reis
Tuberous sclerosis complex (TSC) is a genetic condition characterized by the presence of benign, noninvasive, and tumor-like lesions called hamartomas that can affect multiple organ systems and are responsible for the clinical features of the disease. In the majority of cases, TSC results from mutations in the TSC1 and TSC2 genes, leading to the overactivation of the mammalian target of rapamycin (mTOR) signalling pathway, which controls several cell functions, including cell growth, proliferation, and survival...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28376281/differentiation-of-fat-poor-angiomyolipoma-from-clear-cell-renal-cell-carcinoma-in-contrast-enhanced-mdct-images-using-quantitative-feature-classification
#10
Han Sang Lee, Helen Hong, Dae Chul Jung, Seunghyun Park, Junmo Kim
PURPOSE: To develop a computer-aided classification system to differentiate benign fat-poor angiomyolipoma (fp-AML) from malignant clear-cell renal cell carcinoma (ccRCC) using quantitative feature classification on histogram and texture patterns from contrast-enhanced multi-detector computer tomography (CE MDCT) images. METHODS: A dataset including 50 CE MDCT images of 25 fp-AML and 25 ccRCC patients was used. From these images, the tumors were manually segmented by an expert radiologist to define the regions of interest (ROI)...
April 4, 2017: Medical Physics
https://www.readbyqxmd.com/read/28367409/angiomyolipoma-of-the-adrenal-gland-a-case-presentation-and-a-review-of-adrenal-lipomatous-tumors
#11
Ali Antar, Alexander Boyle, Trushar Patel
Angiomyolipoma (AML) is a typically benign renal tumor derived from mesenchymal tissue. Extrarenal occurrences of AML are possible, but the adrenals are an exceedingly rare site. To date, a total of 4 cases of adrenal AML have been documented in the English literature.(1-3) We present a case of right-sided adrenal AML found in a patient who initially presented with right-sided flank pain. Differential diagnosis of adrenal masses should include lipomatous tumors, as operative considerations and prognoses can be drastically altered...
May 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28358266/natural-history-of-patients-with-tuberous-sclerosis-complex-related-renal-angiomyolipoma
#12
Xue Song, Zhimei Liu, Katherine Cappell, Christopher Gregory, Qayyim Said, Judith Prestifilippo, Hearns Charles, John Hulbert, John Bissler
OBJECTIVE: To examine temporal relationships between tuberous sclerosis complex (TSC) and renal angiomyolipoma diagnosis and outcomes, treatment, and healthcare utilization. METHODS: Administrative data from the MarketScan® Commercial Database were used to select TSC-renal angiomyolipoma patients during 1/1/2000-3/31/2013. Patients were followed until the earliest of inpatient death or end of enrollment or study. Occurrence of kidney-related outcomes, kidney-related procedures, and all-cause healthcare utilization and time to occurrence were reported...
March 30, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28336972/microsatellite-analysis-for-differentiating-the-origin-of-renal-angiomyolipoma-and-involved-regional-lymph-node
#13
Ping Tan, Huan Xu, Yong Jiang, Lu Yang, Yan Zou, Liangren Liu, Nian Liu, Dehong Cao, Yu Fan, Qiyuan Li, Qiang Wei
Renal angiomyolipoma (AML) with the regional lymph node (LN) involved leads to a question of metastasis versus multicentric origin when their histology are similar. As the genomic instability is a common feature of cancer, we hypothesized that independently arising neoplasms in an individual patient would exhibit measurable genomic variation, facilitating the discrimination of tumor lineage and relatedness. Our study enrolled 12 patients who were diagnosed with nodal-involved renal AML at West China Hospital...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28331168/-tuberous-sclerosis-complex-detected-by-spontaneous-rupture-of-a-giant-renal-angiomyolipoma-a-case-report
#14
Mizuki Kobayashi, Mitsuru Saito, Susumu Akihama, Teruaki Kumazawa, Ryoma Igarashi, Ryohei Yamamoto, Koichiro Takayama, Hiroshi Tsuruta, Takamitsu Inoue, Shintaro Narita, Norihiko Tsuchiya, Shigeru Satoh, Tomonori Habuchi
A woman in her 30s was admitted with abdominal pain and nausea. CT scan revealed a spontaneous rupture of the right giant renal angiomyolipoma, and trans-arterial embolization was performed successfully. With further examination, she was found to be affected with tuberous sclerosis complex (TSC) and she finally wastreated with everolimusfor prevention of recurrent spontaneous-rupture of renal angiomyolipoma.
March 2017: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28327196/primary-hepatic-angiomyolipoma-immunohistochemistry-and-electron-microscopic-observations-a-case-report
#15
Hidefumi Kubo, Hitoshi Yamazaki, Takemichi Okada, Yoshihito Takahashi, Yatsushi Nishi, Hiroaki Yokomori
BACKGROUND: Hepatic angiomyolipomas are a rare, benign group of mesenchymal tumors in the liver. Hepatic angiomyolipoma is sometimes misdiagnosed as hepatocellular carcinoma, and there is the possibility of a malignant transformation. Hence, the accurate diagnosis of this disorder is necessary. CASE PRESENTATION: A 64-year-old Japanese man was observed to have a space-occupying lesion of 15-mm diameter in the liver during a follow-up examination for a previously resected cecal carcinoma...
March 22, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28320064/hepatobiliary-and-pancreatic-hepatocellular-carcinoma-developed-with-angiomyolipoma
#16
T Miyata, Y Yamashita, T Yamao, N Umezaki, M Tsukamoto, Y Kitano, K Yamamura, K Arima, T Kaida, S Nakagawa, K Imai, D Hashimoto, A Chikamoto, T Ishiko, T Asato, Y Mikami, S Aishima, H Baba
No abstract text is available yet for this article.
March 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28318774/-epithelioid-angiomyolipoma-of-the-kidney-about-one-case-and-malignant-features-evaluation
#17
Pierre-Marie Lavrut, Philippe Paparel, Myriam Decaussin-Petrucci
Renal epithelioid angiomyolipoma (E-AML) is a rare mesenchymal tumor of the kidney included in the family of tumor with perivascular epithelioid cell differentiation (PEComas) and is frequently associated with tuberous sclerosis complex. Since its clinical and radiological features are not specific, the diagnosis remained mostly pathological. Microscopically, E-AML demonstrate proliferation of more than 80% of epithelioid cells with atypia, often associated with necrosis, hemorrhage, mitotic activity and vascular invasion...
April 2017: Annales de Pathologie
https://www.readbyqxmd.com/read/28317591/renal-myolipoosteoma-a-distinctive-lesion-in-a-child
#18
REVIEW
Hongbiao Jing, Tailing Li, Shujian Zhai, Yan Xi, Qingda Meng
We describe a distinctive renal tumor, a myolipoosteoma (MLO), in an 11-year-old boy who presented with a 6-month history of slight right flank intermittent pain. A gross examination revealed a well-defined, 5.5 cm mass with bone-like consistency. The lesion histologically featured an admixture of mature adipose tissue, spindle cells, and bony components. No atypia, mitotic activity, or pleomorphisms were observed in the tumor. The spindle cells were smooth muscle actin (SMA) and desmin positive but HMB45 and Melan-A negative, indicating that they were of a muscular nature and differed from that of angiomyolipoma (AML)...
March 2017: Surgical Oncology
https://www.readbyqxmd.com/read/28302901/treatment-of-renal-angiomyolipoma-and-other-hamartomas-in-patients-with-tuberous-sclerosis-complex
#19
REVIEW
Joshua A Samuels
Tuberous sclerosis complex is an autosomal dominant genetic disease characterized by growth of benign tumors (hamartomas) in multiple organs, especially the kidneys, brain, heart, lungs, and skin. Tuberous sclerosis complex is usually caused by a mutation in either the tuberous sclerosis complex 1 or tuberous sclerosis complex 2 gene, resulting in constitutive activation of mammalian target of rapamycin signaling. Currently, mammalian target of rapamycin inhibitors are recommended in adult patients with tuberous sclerosis complex for the treatment of asymptomatic, growing renal angiomyolipoma that are >3 cm in diameter and pediatric or adult patients with brain lesions (subependymal giant cell astrocytoma) that either are growing or are not amenable to surgical resection...
March 16, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28301898/epithelioid-angiomyolipoma-of-the-liver-a-case-report
#20
Soo Yeon Lee, Baek-Hui Kim
Epithelioid angiomyolipoma (EAML) of liver is a rare neoplasm. Hepatic EAML is often misdiagnosed as other neoplasms such as hepatocellular carcinoma due to non-specific clinical and radiologic features. The morphologic features under microscope and immunohistochemistry staining profile are important in the diagnosis EAML. Here, we report a case of 52-year-old man who found 1.2 cm mass in liver by routine checkup. On the impression of hepatocellular carcinoma, lateral sectionectomy of the liver was done. Microscopically, the tumor is composed of predominant epithelioid cells with vascular component and foamy cells...
March 2017: Clinical and Molecular Hepatology
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