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Angiomyolipoma

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https://www.readbyqxmd.com/read/29341516/epithelioid-angiomyolipoma-a-case-report-and-review-of-the-literature
#1
F Keane, M Greally, E Harrold, C Barrett, J McCaffrey
Herein we present the case of a 43-year-old female in whom a left renal mass was identified incidentally on imaging performed for staging of a newly diagnosed breast carcinoma. The mass was resected and histologic examination and immunohistochemistry confirmed a diagnosis of epithelioid angiomyolipoma.
August 8, 2017: Irish Medical Journal
https://www.readbyqxmd.com/read/29340326/mtorc1-inhibition-is-an-effective-treatment-for-sporadic-renal-angiomyolipoma
#2
Oren Pleniceanu, Dorit Omer, Einat Azaria, Orit Harari-Steinberg, Benjamin Dekel
Introduction: Renal angiomyolipoma (AML) is the most common benign renal tumor. Despite a generally benign histology, AML can result in significant morbidity, from intra-abdominal hemorrhage and reduction in kidney function. While classically associated with the autosomal dominant disorder tuberous sclerosis complex (TSC) or with pulmonary lymphangioleiomyomatosis, most AMLs are sporadic. Mammalian target of rapamycin complex 1 (mTORC1) inhibitors (e.g., sirolimus) have been found to be effective in treating TSC- or lymphangioleiomyomatosis-associated AML, but to date it is unknown whether this strategy is effective for sporadic AML...
January 2018: KI Reports
https://www.readbyqxmd.com/read/29333579/factors-associated-with-the-number-and-size-of-renal-angiomyolipomas-in-sporadic-angiomyolipoma-saml-a-study-of-adult-patients-with-saml-managed-in-a-dutch-tertiary-referral-center
#3
J L H Ruud Bosch, Francis Vekeman, Mei Sheng Duh, Maureen Neary, Matthew Magestro, Jonathan Fortier, Paul Karner, Raluca Ionescu-Ittu, Bernard A Zonnenberg
PURPOSE: To describe the patient characteristics, treatments, disease monitoring, and kidney function of patients with sporadic angiomyolipoma (sAML), stratified by the number and size of renal angiomyolipomas (AMLs). METHODS: Single-center retrospective analysis of patients with sAML treated from 1990 to 2015 in a dedicated clinic for inheritable tumor syndromes in a tertiary referral center from the Netherlands. Patients' first AML assessment at the clinic was defined as the index date...
January 15, 2018: International Urology and Nephrology
https://www.readbyqxmd.com/read/29327940/the-different-faces-of-renal-angiomyolipomas-on-radiologic-imaging-a-pictorial-review
#4
Shanigarn Thiravit, Wanwarang Teerasamit, Phakphoom Thiravit
Renal angiomyolipoma (AML) is an uncommon renal tumour, generally composed of mature adipose tissue, dysmorphic blood vessels, and smooth muscle. Identification of intratumoural fat on unenhanced CT images (UECT) is the most reliable finding for establishing the diagnosis of renal AML. However, AMLs sometimes exhibit atypical findings, including cystic as well as solid forms; some of these variants overlap with the appearance of other renal tumours. A rare type of AML, the epithelioid type, possesses malignant potential...
January 12, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29308833/severe-bleeding-complications-and-multiple-kidney-transplants-in-a-patient-with-tuberous-sclerosis-complex-caused-by-a-novel-tsc2-missense-variant
#5
Stela Živčić-Ćosić, Karin Mayer, Gordana Đorđević, Mark Nellist, Marianne Hoogeveen-Westerveld, Damir Miletić, Sanjin Rački, Hanns-Georg Klein, Zlatko Trobonjača
We presented an extremely severe case of tuberous sclerosis complex (TSC) in a female patient with recurring, life-threatening bleeding complications related to renal angiomyolipomas. Massive intratumoral hemorrhage required surgical removal of both angiomyolipomatous kidneys and kidney transplantation. During the follow-up period, the patient developed severe metrorrhagia that eventually led to hysterectomy and salpingo-oophorectomy. Bleeding from the operative sites caused the loss of the first kidney transplant received from the mother, and immediate hemorrhagic shock led to the loss of the second, cadaveric kidney allograft...
December 31, 2017: Croatian Medical Journal
https://www.readbyqxmd.com/read/29305199/quantitative-contour-analysis-as-an-image-based-discriminator-between-benign-and-malignant-renal-tumors
#6
Felix Y Yap, Darryl H Hwang, Steven Y Cen, Bino A Varghese, Bhushan Desai, Brian D Quinn, Megha Nayyar Gupta, Nieroshan Rajarubendra, Mihir M Desai, Manju Aron, Gangning Liang, Monish Aron, Inderbir S Gill, Vinay A Duddalwar
OBJECTIVES: To investigate whether morphologic analysis can differentiate benign versus malignant renal tumors on clinically acquired imaging. METHODS: Between 2009 and 2014, 3D tumor volumes were manually segmented from contrast-enhanced computerized tomography (CT) images from 150 patients with predominantly solid, non-macroscopic fat-containing renal tumors: 100 renal cell carcinomas (RCC) and 50 benign lesions (e.g. oncocytoma, lipid-poor angiomyolipoma). Tessellated 3D tumor models were created from segmented voxels using MATLAB code...
January 2, 2018: Urology
https://www.readbyqxmd.com/read/29298785/secondary-stone-formation-over-a-suture-material-after-partial-nephrectomy
#7
Kumar Prem, Somesh Janoria, Pankaj Kumar
We hereby present the treatment of renal pelvic and lower pole stones of sizes 2.74×1 cm and 1.38×0.92 cm, respectively, forming over a nidus of non-absorbable suture, in a 50-year-old female patient with a history of open partial nephrectomy done for renal angiomyolipoma around 10 years back. She was successfully treated with percutaneous nephrolithotomy technique under spinal anaesthesia. There was complete stone clearance, and she was discharged in stable condition within 40 hours of surgery without any stent...
January 3, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29285599/computed-tomography-and-magnetic-resonance-imaging-of-peripelvic-and-periureteric-pathologies
#8
REVIEW
Ekim Gumeler, Mehmet Ruhi Onur, Ali Devrim Karaosmanoglu, Mustafa Ozmen, Deniz Akata, Musturay Karcaaltincaba
Peripelvic and periureteric areas are frequently overlooked in the imaging evaluations of the urinary system on computed tomography and magnetic resonance imaging. Several neoplastic and non-neoplastic disorders and diseases including lipomatosis, angiomyolipoma and angiolipomatous proliferation, vascular lesions, lymphangiomatosis, Rosai-Dorfman disease, Erdheim-Chester disease, extramedullary hematopoiesis, IgG4-related disease, lymphoma, mesenchymal tumors, trauma, and Antopol-Goldman lesion may involve these areas...
December 28, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29279500/hepatic-angiomyolipoma-staining-in-the-post-vascular-phase-of-contrast-enhanced-ultrasound-due-to-the-presence-of-macrophages
#9
Kei Endo, Hidekatsu Kuroda, Keisuke Kakisaka, Takayoshi Oikawa, Kei Sawara, Kazuyuki Ishida, Tamotsu Sugai, Yasuhiro Takikawa
A 47-year-old Japanese man was referred to hospital after the detection of a liver tumor. Dynamic computed tomography and Gd-EOB-DTPA-enhanced magnetic resonance imaging were consistent with a diagnosis of hepatocellular carcinoma (HCC). No perfusion defect was observed in the post-vascular phase of contrast-enhanced ultrasound (CEUS). Histopathological staining of the tumor cells was positive for antibodies against HMB-45 and CD68, confirming the diagnosis of hepatic angiomyolipoma (HAML). These findings indicated the presence of macrophages in HAML...
December 27, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29276686/huge-retroperitoneal-epithelioid-angiomyolipoma-a-case-report
#10
Han-Yu Tsai, Yuting Kao, Cheng-Keng Chuang, Kun-Han Lee
No abstract text is available yet for this article.
March 2018: Urology Case Reports
https://www.readbyqxmd.com/read/29275410/recurrent-giant-renal-angiomyolipoma-treated-with-selective-arterial-embolization-a-case-report
#11
Guven Tidim, Ozgur Kilickesmez, Mehmet Gokhan Culha
Renal angiomyolipoma (AML), a rare benign mesenchymal neoplasm, is characterized by the presence of vessels, smooth muscle, and adipose tissue. Treatment should be considered for symptomatic patients or for those at risk for complications, in particular for retroperitoneal bleeding, which is correlated to the size of the tumor, grade of the angiogenic component, and presence of tuberous sclerosis complex. Herein, we report the case of a 39-year-old female with renal AML who was treated in a conservative approach by super-selective embolization...
December 22, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/29260305/are-we-overtreating-renal-angiomyolipoma-a-review-of-the-literature-and-assessment-of-contemporary-management-and-follow-up-strategies
#12
Timothy E Murray, Michael J Lee
Renal angiomyolipoma (AML) are benign tumours composed of fat, muscle, and disorganised blood vessels. Historic treatment algorithms for sporadic AML based on size fail to consider additional risk factors such as tumour vascularity and pseudoaneurysm formation. As AML is now predominantly incidental, rupture is rare and its mortality low. The recent publication of the largest longitudinal series to date also suggest that growth is uncommon, challenging existing surveillance paradigms. The evidence assessing treatment strategies in AML are reviewed, with particular emphasis on incidental sporadic AML...
December 19, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29258718/different-mri-defined-tuber-types-in-tuberous-sclerosis-complex-quantitative-evaluation-and-association-with-disease-manifestations
#13
Simonas Jesmanas, Kristina Norvainytė, Rymantė Gleiznienė, Renata Šimoliūnienė, Milda Endzinienė
BACKGROUND: Tuberous sclerosis complex (TSC) is a rare genetic disorder with multisystem involvement. A magnetic-resonance (MRI) based classification of tubers into types A, B and C has been proposed. However, the relationship between different tuber types and their quantitative characteristics, also the non-neurological manifestations of TSC remains unknown. AIMS: To quantitatively evaluate different MRI-defined tuber types and to explore their relationships with major disease manifestations in patients with tuberous sclerosis complex...
December 16, 2017: Brain & Development
https://www.readbyqxmd.com/read/29249553/liver-angiomyolipomas-in-tuberous-sclerosis-complex-their-incidence-and-course
#14
Sergiusz Jóźwiak, Krzysztof Sadowski, Julita Borkowska, Dorota Domańska-Pakieła, Dariusz Chmielewski, Elżbieta Jurkiewicz, Maciej Jaworski, Małgorzata Urbańska, Magdalena Ogrodnik, Monika Słowińska, Katarzyna Kotulska
BACKGROUND: The purpose of this study was to evaluate the epidemiology and clinical significance of hepatic angiomyolipomas in patients with tuberous sclerosis complex. METHODS: We performed a retrospective analysis of clinical and imaging data of 187 patients with tuberous sclerosis complex. The prevalence, progression, and potential relationship between liver lesions and other clinical findings, including genetic associations, were assessed. RESULTS: Twenty-eight of 187 patients (14...
September 28, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/29241297/selecting-a-suitable-surgical-treatment-for-hepatic-angiomyolipoma-a-retrospective-analysis-of-92-cases
#15
Xianwei Yang, Chuanfen Lei, Yiwen Qiu, Shu Shen, Changli Lu, Lunan Yan, Wentao Wang
BACKGROUND: Hepatic angiomyolipoma (HAML) is a rare and difficult-to-diagnose liver tumour. The aim of this study was to summarize experiences in the management of HAML and to recommend a practical treatment strategy. METHODS: We retrospectively studied 92 patients who were diagnosed with HAML and analysed the clinical presentation, histopathological features and treatment of the tumours encountered at our institute from May 2009 to June 2016. RESULTS: The patients included 67 females and 25 males who underwent at least one radiographic examination...
December 14, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/29232371/treatment-effect-of-mtor-inhibition-on-tissue-composition-of-renal-angiomyolipomas-in-tuberous-sclerosis-complex-tsc
#16
Susanne Brakemeier, Lars Vogt, Lisa Adams, Bianca Zukunft, Gerd Diederichs, Bernd Hamm, Klemens Budde, Marcus R Makowski
PURPOSE: Tuberous sclerosis complex (TSC)-associated renal angiomyolipoma (AML) have a high lifetime risk of acute bleeding. MTOR-inhibitors are a promising novel treatment for TSC-AML, however adequate response to therapy can be difficult to assess. Early changes in MRI signal may serve as a novel early indicator for a satisfactory response to mTOR-inhibitor therapy of AML. MATERIALS AND METHODS: Thirty-eight patients with the definite diagnosis of tuberous sclerosis receiving everolimus therapy and n = 19 patients without specific therapy were included...
2017: PloS One
https://www.readbyqxmd.com/read/29225800/recommendations-for-imaging-based-diagnosis-and-management-of-renal-angiomyolipoma-associated-with-tuberous-sclerosis-complex
#17
REVIEW
María José Buj Pradilla, Teresa Martí Ballesté, Roser Torra, Felipe Villacampa Aubá
Renal angiomyolipomas are found in up to 80% of tuberous sclerosis complex (TSC) patients. Although these tumours are usually asymptomatic, lesions >3 cm in diameter are prone to bleeding and up to 10% of TSC patients may experience a massive and potentially fatal retroperitoneal haemorrhage. Diagnosis can be complicated because of the initial lack of symptoms and the fat-poor content of atypical renal angiomyolipomas. After diagnosis, tumour growth and the emergence of new tumours must be monitored. Treatment with mammalian target of rapamycin (mTOR) inhibitors can reduce tumour size and is indicated in patients with TSC-associated renal angiomyolipomas >3 cm in diameter...
December 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/29224261/-current-situation-and-prospect-of-diagnosis-and-treatment-of-tuberous-sclerosis-related-renal-angiomyolipoma
#18
H Z Li, Y S Zhang
Tuberous sclerosis complex is an autosomal dominant disease involving multiple organs and multiple systems. The main manifestation is renal angiomyolipoma in the kidney. It is the most common cause of death in adults, because of its high incidence, rapid growth and bleeding. The incidence of this disease is low and the cognition is not enough, so the diagnosis and treatment are lack of standardization. Recently, the expert consensus of the diagnosis and treatment of tuberous sclerosis related renal angiomyolipoma has been established in China...
December 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29217816/wunderlich-s-syndrome-or-spontaneous-retroperitoneal-hemorrhage-in-a-patient-with-tuberous-sclerosis-and-bilateral-renal-angiomyolipoma
#19
Sara Catarino Santos, Liliana Duarte, Fernando Valério, Júlio Constantino, Jorge Pereira, Carlos Casimiro
BACKGROUND Wunderlich's syndrome, or spontaneous non-traumatic retroperitoneal hemorrhage, can be a life-threatening event. Renal angiomyolipoma is a rare benign tumor that can occur sporadically, or in association with tuberous sclerosis. A case of spontaneous retroperitoneal hemorrhage in a patient with tuberous sclerosis and bilateral renal angiomyolipoma is presented. CASE REPORT A 33-year-old female Caucasian patient, with a known medical history of tuberous sclerosis, was admitted to hospital as an emergency, with right-sided abdominal pain...
December 8, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/29211401/extrarenal-angiomyolipoma-differential-diagnosis-of-retroperitoneal-masses
#20
Marcelo Langer Wroclawski, Willy Baccaglini, Cristiano Linck Pazeto, Cristina Carbajo, Chaline Matushita, Arie Carneiro, Alexandre Pompeo, Sidney Glina, Antonio Carlos Lima Pompeo, Lívia Barreira Cavalcante
No abstract text is available yet for this article.
December 7, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
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