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1.
Urologiia ; (5): 37-40, 2020 Nov.
Artigo em Russo | MEDLINE | ID: mdl-33185344

RESUMO

AIM: to evaluate the efficiency and usefulness of augmented reality (AR) technology using HoloLens glasses for laparoscopic partial nephrectomy (LPN). MATERIALS AND METHODS: From July to December 2019, a total of 5 patients with localized kidney cancer (cT1aN0M0) underwent AR-assisted LRP. The mean RENAL score was 6 points (5-8). Preoperatively, all patients underwent contrast-enhanced multispiral computed tomography (MSCT). The three-dimensional reconstructions of the kidney, tumor, part of the abdominal aorta with the renal artery and its branches, part of the inferior vena cava with the renal vein were segmented with color coding and connected into a single virtual 3D model, which was loaded into the program in order to display image in AR glasses. The duration of surgery and thermal ischemia, type and frequency of intraoperative complications, as well as the time spent on preparing the 3D model and the Microsoft HoloLens device were evaluated. To assess the feasibility of using AR technology intraoperatively, a Likert scale was filled out by the surgeon. RESULTS: It took 10 (9-11) hours to prepare the model, including time to optimize the model and to set up its display and interactions. The setup of HoloLens required an average of 7.8 (5- 12) min. The total duration of the operation and the period of warm ischemia was 108 (90-120) and 20 (15-25) min, respectively, while intraoperative blood loss was 160 (110-250) ml. In all cases, a negative surgical margin was found. The surgeon who performed all the operations assessed the use of AR technology with the HoloLens device as highly beneficial in all clinical cases. CONCLUSION: The use of AR technology with a HoloLens holographic device during LPN can lead to improved treatment outcomes.


Assuntos
Neoplasias Renais , Laparoscopia , Urologia , Realidade Aumentada , Humanos , Neoplasias Renais/diagnóstico por imagem , Neoplasias Renais/cirurgia , Nefrectomia , Estudos Retrospectivos
2.
Einstein (Sao Paulo) ; 18: eAO5576, 2020.
Artigo em Inglês, Português | MEDLINE | ID: mdl-33206813

RESUMO

OBJECTIVE: To evaluate anatomic factors and radiologist's experience in the detection of solid renal masses on ultrasonography. METHODS: We searched for solid renal masses diagnosed on cross-sectional imaging from 2007 to 2017 that also had previous ultrasonography from the past 6 months. The following features were evaluated: nodule size, laterality, location and growth pattern, patient body mass index and radiologist's experience in ultrasound. In surgically resected cases, pathologic reports were evaluated. Unpaired t test and χ2 test were used to evaluate differences among subgroups, using R-statistics. Statistical significance was set at p<0.05. RESULTS: The initial search of renal nodules on cross-sectional imaging resulted in 428 lesions and 266 lesions were excluded. Final cohort included 162 lesions and, of those, 108 (67%) were correctly detected on ultrasonography (Group 1) and 54 (33%) were missed (Group 2). Comparison of Groups 1 and 2 were as follows, respectively: body mass index (27.7 versus 27.1; p=0.496), size (2.58cm versus 1.74cm; p=0.003), laterality (54% versus 59% right sided; p=0.832), location (27% versus 22% upper pole; p=0.869), growth pattern (25% versus 28% endophytic; p=0.131) and radiologist's experience (p=0.300). From surgically resected cases, histology available for Group 1 was clear cell (n=11), papillary (n=15), chromophobe (n=2) renal cell carcinoma, oncocytoma (n=1), and, for Group 2, clear cell (n=7), papillary (n=5) renal cell carcinoma, oncocytoma (n=2), angiomyolipoma, chromophobe renal cell carcinoma, and interstitial pyelonephritis (n=1, each). CONCLUSION: Size was the only significant parameter related to renal nodule detection on ultrasound.


Assuntos
Carcinoma de Células Renais , Neoplasias Renais , Rim/diagnóstico por imagem , Ultrassonografia , Carcinoma de Células Renais/diagnóstico por imagem , Diagnóstico Diferencial , Humanos , Rim/patologia , Neoplasias Renais/diagnóstico por imagem , Radiologistas
3.
Kyobu Geka ; 73(11): 910-913, 2020 Oct.
Artigo em Japonês | MEDLINE | ID: mdl-33130712

RESUMO

Cardiac metastasis from renal cell carcinoma (RCC) is relatively rare. It generally initiates from the right atrium with or without involvement of the inferior vena cava (IVC). Here, we report a case of metastasis of isolated clear cell RCC to the left ventricular( LV) papillary muscle. An 84-year-old male who had undergone renal resection due to RCC 19 years before, presented to our hospital with suspected LV tumor by echocardiography. The tumor was located near the posterior papillary muscle, with a size of 15×12 mm. The patient underwent resection of the LV tumor. Pathologically, the tumor was diagnosed as clear cell RCC. The postoperative course was stable, and he did not require any chemotherapy. Although there is no definite evidence of the mechanisms of metastasis, the tumor was supposed to metastasize lymphogeneously.


Assuntos
Carcinoma de Células Renais , Neoplasias Cardíacas , Neoplasias Renais , Idoso de 80 Anos ou mais , Carcinoma de Células Renais/diagnóstico por imagem , Carcinoma de Células Renais/cirurgia , Neoplasias Cardíacas/diagnóstico por imagem , Neoplasias Cardíacas/cirurgia , Ventrículos do Coração/diagnóstico por imagem , Ventrículos do Coração/cirurgia , Humanos , Neoplasias Renais/diagnóstico por imagem , Neoplasias Renais/cirurgia , Masculino , Veia Cava Inferior
4.
Arch Esp Urol ; 73(9): 862-863, 2020 Nov.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-33144543

RESUMO

A 62 year old man with a history of weight loss and left flank pain did a renal ultrasound that showed a heterogeneous formation involving the left kidney compatible with a solid lesion...


Assuntos
Nefropatias , Neoplasias Renais , Lipomatose , Humanos , Rim/diagnóstico por imagem , Nefropatias/diagnóstico por imagem , Nefropatias/etiologia , Neoplasias Renais/diagnóstico por imagem , Neoplasias Renais/cirurgia , Lipomatose/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Ultrassonografia
5.
Urologe A ; 59(11): 1377-1380, 2020 Nov.
Artigo em Alemão | MEDLINE | ID: mdl-33025114

RESUMO

Epitheloide angiomyolipoma (EAML) is a very rare type of benign mesenchymal angiomyolipoma. In contrast to classical angiomylipoma, lymph node metastases, local recurrence and distant metastases occur in one third of patients with EAML. We report the case of a 49-year-old patient with a large recurrence of EAML of the left kidney. According to the literature, this is the first case of a malignant EAML with local recurrence in Germany.


Assuntos
Angiomiolipoma , Neoplasias Renais , Angiomiolipoma/diagnóstico por imagem , Angiomiolipoma/cirurgia , Alemanha , Humanos , Neoplasias Renais/diagnóstico por imagem , Neoplasias Renais/cirurgia , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Nefrectomia
6.
Medicine (Baltimore) ; 99(42): e22706, 2020 Oct 16.
Artigo em Inglês | MEDLINE | ID: mdl-33080721

RESUMO

RATIONALE: Synovial sarcoma (SS) is a malignant neoplasm that arises from soft tissues proximal to the joints. It occurs primarily at the major joints of the extremities, but may also occur in the deep soft tissues around the joints. While primary renal synovial sarcoma (PRSS) is extremely rare, it is important to have a better understanding of their imaging and clinical features to establish an effective treatment plan. Correct identification of PRSS is also useful for treating renal neoplasms. PATIENT'S CONCERNS: A 56-year-old Chinese man was admitted to our hospital due to moderate, paroxysmal left-sided loin pain. DIAGNOSIS: Renal enhanced computed tomography (CT) scanning showed a relatively hypovascular lesion with calcification in the left kidney. A radical nephrectomy was performed in the left kidney. Postoperative pathology indicated SS with necrosis. The immunohistochemical findings were as follows: 34ßE12 (Epithelium+), Bcl-2(+), CD99(+), CK-pan((Epithelium+), EMA(Epithelium+), Ki-67(+60%), and Vimentin(+), CD34(-). INTERVENTIONS: The patient underwent radical left nephrectomy with no complications. OUTCOMES: After discharge, a close review for 3 months showed no evidence of recurrence. LESSONS: PRSS should be considered for the differential diagnosis of renal hypovascular tumors. When problems arise in distinguishing renal hypovascular tumors, surgical pathology is helpful in the final diagnosis and further treatment of the disease.


Assuntos
Neoplasias Renais/diagnóstico , Recidiva Local de Neoplasia/diagnóstico , Sarcoma Sinovial/diagnóstico , Terapia Combinada , Diagnóstico Diferencial , Humanos , Neoplasias Renais/diagnóstico por imagem , Neoplasias Renais/terapia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/diagnóstico por imagem , Recidiva Local de Neoplasia/terapia , Nefrectomia , Sarcoma Sinovial/diagnóstico por imagem , Sarcoma Sinovial/terapia , Tomografia Computadorizada por Raios X
7.
Medicine (Baltimore) ; 99(38): e22329, 2020 Sep 18.
Artigo em Inglês | MEDLINE | ID: mdl-32957401

RESUMO

RATIONALE: A supernumerary kidney is an extremely rare renal anomaly. Currently, <100 cases are reported in the literature. There are only 2 right unilateral supernumerary kidneys reported in the literature thus far, but no confirmed cases of urothelial carcinoma in supernumerary kidneys. We report a case of a right supernumerary with urothelial carcinoma, which is, to the best of our knowledge, reported for the first time. PATIENT CONCERNS: A 73-year-old female patient presented with intermittent, painless, whole course and gross hematuria for about 3 months. Her physical and laboratory examinations did not reveal any significant findings except positive occult blood in routine urine examination. Contrast-enhanced spiral computed tomography revealed a dysplastic supernumerary kidney under the normal right kidney. DIAGNOSES: The ureteroscopy showed that the ureter was Y-shaped in the middle part. The medial ureter led to a normal kidney. The lateral ureter was just 2 cm and led to a small cavity in which there was a mass whose biopsy showed urothelial carcinoma. The patient was subsequently diagnosed with a right supernumerary kidney with urothelial carcinoma. INTERVENTION: Nephroureterectomy, including the right normal and supernumerary kidneys, and partial cystectomy by laparoscopy were performed after the ureteroscopy. The patient then received 6 cycles of gemcitabine and cisplatin regimen chemotherapy and regular intravesical epirubicin chemotherapy. OUTCOMES: No recurrence or metastasis was found on follow-up computed tomography performed 13 months postoperatively. LESSONS: A supernumerary kidney is an extremely rare renal anomaly. Malignancy can occur in supernumerary kidneys.


Assuntos
Carcinoma de Células de Transição/terapia , Neoplasias Renais/terapia , Rim/anormalidades , Idoso , Antineoplásicos/uso terapêutico , Carcinoma de Células de Transição/diagnóstico por imagem , Carcinoma de Células de Transição/patologia , Cisplatino/uso terapêutico , Desoxicitidina/análogos & derivados , Desoxicitidina/uso terapêutico , Humanos , Rim/diagnóstico por imagem , Neoplasias Renais/diagnóstico por imagem , Neoplasias Renais/patologia , Nefroureterectomia , Ureter/anormalidades
8.
Hinyokika Kiyo ; 66(9): 293-296, 2020 Sep.
Artigo em Japonês | MEDLINE | ID: mdl-32988165

RESUMO

A 55-year-old man underwent right partial nephrectomy and was diagnosed with papillary type 1 renal cell carcinoma (RCC), pT1a. The surgical margin was negative. Six months later, a follow-up computed tomography scan revealed that a mass appeared adjacent to the location of resection. There were no symptoms nor abnormal blood chemistry results at that time. The possibility of local recurrence of RCC could not be ruled out with by magnetic resonance imaging. Radical nephrectomy was performed for suspected rapid recurrence of RCC. Pathological diagnosis was xanthogranulomatous pyelonephritis but not malignancy.


Assuntos
Carcinoma de Células Renais/diagnóstico por imagem , Carcinoma de Células Renais/cirurgia , Neoplasias Renais/diagnóstico por imagem , Neoplasias Renais/cirurgia , Pielonefrite Xantogranulomatosa/diagnóstico por imagem , Pielonefrite Xantogranulomatosa/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/diagnóstico por imagem , Nefrectomia
9.
Hinyokika Kiyo ; 66(9): 303-306, 2020 Sep.
Artigo em Japonês | MEDLINE | ID: mdl-32988167

RESUMO

A 56-year-old woman presented with left flank pain. Computed tomography revealed hydronephrosis and a 35 mm mass in the left renal pelvis. Ureteroscopy revealed a white elevated lesion in the left renal pelvis. Tissue biopsy was performed and the histological findings showed no evidence of malignancy. Urine cytology was class III. Based on these results, we could not completely rule out malignancy. Left retroperitoneoscopic nephroureterectomy was performed and a pedunculated white mass was found in the renal pelvis. The pathological diagnosis was a fibroepithelial polyp of the renal pelvis. Fibroepithelial polyps in the urinary tract are relatively rare, and those in the renal pelvis even more so. When the preoperative diagnosis shows no malignant findings, fibroepithelial polyps should be considered as a differential diagnosis.


Assuntos
Neoplasias Renais/diagnóstico por imagem , Neoplasias Renais/diagnóstico , Neoplasias Renais/cirurgia , Pólipos/diagnóstico por imagem , Pólipos/diagnóstico , Pólipos/cirurgia , Neoplasias Cutâneas , Feminino , Humanos , Pelve Renal/diagnóstico por imagem , Pelve Renal/cirurgia , Pessoa de Meia-Idade , Ureteroscopia
10.
Medicine (Baltimore) ; 99(36): e22057, 2020 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-32899070

RESUMO

INTRODUCTION: Based on existing literature, the juxtaglomerular cell tumor (JGCT) is a rare renal tumor, typically present with hypertension and hypokalemia. Nonfunctioning JGCT, without hypertension or hypokalemia, is extremely rare. PATIENT CONCERNS: Herein, we report a case of nonfunctioning JGCT mimicking renal cell carcinoma. The 29-year-old woman with an unremarkable past medical history presented with a left renal tumor without hypertension or hypokalemia. DIAGNOSIS: Both CT and 18F-FDG-PET/CT suggested a malignancy, possibly renal cell carcinoma. INTERVENTIONS: The tumor was then removed completely via robotic assistant laparoscopic partial nephrectomy; and pathology result was JGCT. Since the patient had no hypertension or hypokalemia, a nonfunctional JGCT was diagnosed. OUTCOMES: The patient recovered uneventfully, and was in good health in 6-months' follow-up period. CONCLUSION: Preoperative identification of JGCT is very difficult due to the lack of specific clinical manifestations. This case teaches us that for young patients with renal tumors whose CT enhancement is not obvious at the early phase, JGCT should be considered as a differential diagnosis. Radical nephrectomy should be avoided for JGCT in consideration of its relatively good prognosis.


Assuntos
Carcinoma de Células Renais/diagnóstico , Sistema Justaglomerular/patologia , Neoplasias Renais/patologia , Neoplasias/cirurgia , Adulto , Assistência ao Convalescente , Diagnóstico Diferencial , Feminino , Fluordesoxiglucose F18/administração & dosagem , Humanos , Neoplasias Renais/diagnóstico por imagem , Laparoscopia/instrumentação , Nefrectomia/métodos , Nefrectomia/tendências , Tomografia Computadorizada com Tomografia por Emissão de Pósitrons/métodos , Procedimentos Cirúrgicos Robóticos/métodos , Resultado do Tratamento
11.
AJR Am J Roentgenol ; 215(3): 645-651, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32755159

RESUMO

OBJECTIVE. The purpose of this article is to investigate the value of 18F-FDG PET/CT and enhanced CT in the diagnosis of renal cell carcinoma (RCC) with sarcomatoid differentiation and the differential diagnosis of clear cell renal cell carcinoma (ccRCC). MATERIALS AND METHODS. Among patients with renal tumors confirmed by pathologic examination from September 2010 to August 2019, 29 patients with RCC with sarcomatoid differentiation and 82 patients with ccRCC who underwent FDG PET/CT, renal contrast-enhanced CT examination, or both, before surgery were studied. Features of the two groups on CT and PET/CT were retrospectively reviewed. RESULTS. The tumor size of RCC with sarcomatoid differentiation was larger than that of ccRCC (p = 0.0086). Cystic necrosis, peritumoral neovascularity, and metastasis were more common in RCC with sarcomatoid differentiation (p = 0.0052, p = 0.0008, p < 0.0001, respectively). The ratio of necrotic area to tumor diameter of RCC with sarcomatoid differentiation was statistically significantly larger than that of ccRCC (p = 0.0032). Three cases of RCC with sarcomatoid differentiation showed a large central necrotic area and dense intratu-moral neovascularity in the surrounding parenchyma, defined as the ring-of-fire sign, which was not found in ccRCC. The maximum standardized uptake value (SUVmax), mean standardized uptake value (SUVmean), and peak standardized uptake value (SUVpeak) of RCC with sarcomatoid differentiation were statistically significantly higher than those for ccRCC (all p < 0.0001), and the SUVmax, SUVmean, and SUVpeak cutoff values of 5.4, 4.2, and 5.0, respectively, were helpful for discrimination. CONCLUSION. Imaging features including higher SUVmax, SUVmean, and SUVpeak; a larger ratio of necrotic area to tumor diameter; the presence of peritumoral neovascularity; and metastasis are more commonly associated with RCC with sarcomatoid differentiation than with ccRCC. The ring-of-fire sign and SUVmax, SUVmean, SUVpeak cutoff values of 5.4, 4.2, 5.0, respectively, may be helpful to indicate RCC with sarcomatoid differentiation.


Assuntos
Carcinoma de Células Renais/diagnóstico por imagem , Carcinoma de Células Renais/patologia , Neoplasias Renais/diagnóstico por imagem , Neoplasias Renais/patologia , Tomografia Computadorizada com Tomografia por Emissão de Pósitrons , Tomografia Computadorizada por Raios X , Idoso , Carcinoma de Células Renais/cirurgia , Meios de Contraste , Diagnóstico Diferencial , Feminino , Fluordesoxiglucose F18 , Humanos , Neoplasias Renais/cirurgia , Masculino , Pessoa de Meia-Idade , Nefrectomia , Compostos Radiofarmacêuticos , Estudos Retrospectivos
12.
AJR Am J Roentgenol ; 215(4): 920-928, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32783560

RESUMO

OBJECTIVE. The purpose of this study is to provide an overview of the traditional machine learning (ML)-based and deep learning-based radiomic approaches, with focus placed on renal mass characterization. CONCLUSION. ML currently has a very low barrier to entry into general medical practice because of the availability of many open-source, free, and easy-to-use toolboxes. Therefore, it should not be surprising to see its related applications in renal mass characterization. A wider picture of the previous works might be beneficial to move this field forward.


Assuntos
Neoplasias Renais/diagnóstico por imagem , Neoplasias Renais/patologia , Aprendizado de Máquina , Imagem por Ressonância Magnética , Tomografia Computadorizada por Raios X , Humanos
14.
Radiol Clin North Am ; 58(5): 851-873, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32792119

RESUMO

Renal masses increasingly are found incidentally, largely due to the frequent use of medical imaging. Computed tomography (CT) and MR imaging are mainstays for renal mass characterization, presurgical planning of renal tumors, and surveillance after surgery or systemic therapy for advanced renal cell carcinomas. CT protocols should be tailored to different clinical indications, balancing diagnostic accuracy and radiation exposure. MR imaging protocols should take advantage of the improved soft tissue contrast for renal tumor diagnosis and staging. Optimized imaging protocols enable analysis of imaging features that help narrow the differential diagnoses and guide management in patients with renal masses.


Assuntos
Protocolos Clínicos , Neoplasias Renais/diagnóstico por imagem , Imagem por Ressonância Magnética/métodos , Guias de Prática Clínica como Assunto , Tomografia Computadorizada por Raios X/métodos , Diagnóstico Diferencial , Humanos , Rim/diagnóstico por imagem , Doses de Radiação , Reprodutibilidade dos Testes
15.
Radiol Clin North Am ; 58(5): 875-884, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32792120

RESUMO

Indeterminate renal masses remain a diagnostic challenge for lesions not initially characterized as angiomyolipoma or Bosniak I/II cysts. Differential for indeterminate renal masses include oncocytoma, fat-poor angiomyolipoma, and clear cell, papillary, and chromophobe renal cell carcinoma. Qualitative and quantitative techniques using data derived from multiphase contrast-enhanced imaging have provided methods for specific differentiation and subtyping of indeterminate renal masses, with emerging applications such as radiocytogenetics. Early and accurate characterization of indeterminate renal masses by multiphase contrast-enhanced imaging will optimize triage of these lesions into surgical, ablative, and active surveillance treatment plans.


Assuntos
Interpretação de Imagem Assistida por Computador/métodos , Neoplasias Renais/diagnóstico por imagem , Neoplasias Renais/patologia , Imagem por Ressonância Magnética/métodos , Tomografia Computadorizada por Raios X/métodos , Meios de Contraste , Diagnóstico Diferencial , Humanos , Aumento da Imagem/métodos , Rim/diagnóstico por imagem , Rim/patologia , Triagem
16.
Radiol Clin North Am ; 58(5): 885-896, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32792121

RESUMO

There are several potential pitfalls that radiologists face when interpreting images of the kidneys. Some result from image acquisition and can arise from the imaging equipment or imaging technique, whereas others are patient related. Another category of pitfalls relates to image interpretation. Some difficulties stem from methods to detect enhancement after contrast administration, whereas others are benign entities that can mimic a renal tumor. Finally, interpretation and diagnosis of fat-containing renal masses may be tricky due to the complexities discerning the pattern of fat within a mass and how that translates to an accurate diagnosis.


Assuntos
Neoplasias Renais/diagnóstico por imagem , Imagem por Ressonância Magnética/métodos , Tomografia Computadorizada por Raios X/métodos , Meios de Contraste , Diagnóstico Diferencial , Humanos , Aumento da Imagem/métodos , Rim/diagnóstico por imagem , Reprodutibilidade dos Testes
17.
Radiol Clin North Am ; 58(5): 897-907, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32792122

RESUMO

Most renal masses are benign cysts; a subset are malignant. Most renal masses are incidental findings. Evaluation of renal cysts has evolved with updates to the Bosniak classification system and other guidelines. The Bosniak classification provides detailed definitions and extends the system from computed tomography to MR imaging. This article provides a simple approach to the evaluation of cystic or potentially cystic renal masses. The radiologist is central to this process. Key elements include confirming that a renal lesion is cystic and not solid, determining the need for further characterization by imaging, and judicious application of the Bosniak classification system.


Assuntos
Diagnóstico por Imagem/métodos , Doenças Renais Císticas/diagnóstico por imagem , Neoplasias Renais/diagnóstico por imagem , Diagnóstico Diferencial , Humanos , Rim/diagnóstico por imagem , Imagem por Ressonância Magnética/métodos , Tomografia Computadorizada por Raios X/métodos , Ultrassonografia/métodos
18.
Radiol Clin North Am ; 58(5): 925-933, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32792124

RESUMO

Given the incidence of small renal masses, from benign cysts to malignancy, most radiologists encounter these lesions multiple times during their career. Radiologists have an opportunity to provide critical data that will further refine the understanding of the impact of these masses on patient outcomes. This article summarizes and describes recent updates and understanding of the critical observations and descriptors of renal masses. The templates and glossary of terms presented in this review article facilitate the radiology reporting of such data elements, giving radiologists the opportunity to improve diagnostic accuracy and influence management of small renal masses.


Assuntos
Documentação/métodos , Neoplasias Renais/diagnóstico por imagem , Imagem por Ressonância Magnética/métodos , Terminologia como Assunto , Tomografia Computadorizada por Raios X/métodos , Humanos , Rim/diagnóstico por imagem
19.
Radiol Clin North Am ; 58(5): 935-949, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32792125

RESUMO

An introduction to the expanding modality of contrast-enhanced ultrasound is provided, along with basics on contrast agents and technique. The contrast ultrasound findings of multiple renal tumors are reviewed with examples, including clear cell renal cell carcinoma, papillary renal cell carcinoma, chromophobe renal cell carcinoma, other rare renal cell carcinoma subtypes, oncocytoma, upper tract urothelial carcinoma, lymphoma, and angiomyolipoma, followed also by brief discussions of renal infections and pseudolesions.


Assuntos
Meios de Contraste , Aumento da Imagem/métodos , Neoplasias Renais/diagnóstico por imagem , Ultrassonografia/métodos , Diagnóstico Diferencial , Humanos , Rim/diagnóstico por imagem , Sensibilidade e Especificidade
20.
Radiol Clin North Am ; 58(5): 951-963, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32792126

RESUMO

Up to 8% of renal cancers are thought to have a hereditary component. Several hereditary renal cancer syndromes have been identified over the last few decades. It is important for the radiologist to be aware of findings associated with hereditary renal cancer syndromes to detect tumors early, enroll patients in appropriate surveillance programs, and improve outcomes for the patient and affected family members. This review discusses from a radiologist's perspective well-known hereditary renal cancer syndromes and emerging genetic mutations associated with renal cancer that are less well characterized, focusing on imaging features and known associations.


Assuntos
Carcinoma de Células Renais/diagnóstico por imagem , Diagnóstico por Imagem/métodos , Neoplasias Renais/diagnóstico por imagem , Síndromes Neoplásicas Hereditárias/diagnóstico por imagem , Esclerose Tuberosa/diagnóstico por imagem , Doença de von Hippel-Lindau/diagnóstico por imagem , Humanos , Rim/diagnóstico por imagem , Imagem por Ressonância Magnética , Tomografia por Emissão de Pósitrons , Tomografia Computadorizada por Raios X
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