Search Our Scientific Publications & Authors

Abdom Radiol (NY) 2018 Nov 30. Epub 2018 Nov 30.

Keck School of Medicine, University of Southern California, Radiology, Los Angeles, CA, 90033, USA.

Purpose: The purpose of the study was to evaluate the feasibility of using contrast-enhanced computed tomography (CECT)-based texture analysis (CTTA) metrics to differentiate between juxtatumoral perinephric fat (JPF) surrounding low-grade (ISUP 1-2) versus high-grade (ISUP 3-4) clear cell renal cell carcinoma (ccRCC).

Methods: In this IRB-approved study, we retrospectively queried the surgical database between June 2009 and April 2016 and identified 83 patients with pathologically confirmed ccRCC (low grade: n = 54, mean age = 61.5 years, 18F/35M; high grade n = 30, mean age = 61. Read More

J Surg Res 2019 Jan 26;233:26-31. Epub 2018 Jul 26.

Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts.

Background: Objective criteria are lacking to determine whether a laparoscopic transabdominal (LA) or retroperitoneoscopic (RP) approach to adrenalectomy is optimal. We hypothesized that imaging characteristics could predict patients for whom RP adrenalectomy is the optimal approach.

Materials And Methods: Retrospective cohort study of all patients undergoing minimally invasive adrenalectomy between 2014 and 2016 (n = 113) at one institution. Read More

Urol Case Rep 2019 Jan 4;22:70-72. Epub 2018 Sep 4.

Department of urology, Chang Zheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China.

J Infect Chemother 2018 Nov 15. Epub 2018 Nov 15.

Second Department of Internal Medicine, Nagasaki University, Nagasaki, Japan; Department of Respiratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.

Emphysematous pyelonephritis (EPN) is a life-threatening renal infection characterized by the formation of gas within the renal parenchyma and collecting duct system, as well as perinephric tissues. We herein report a case of bilateral EPN accompanied by the urinary tract infection caused by spherical growth of Candida albicans in a patient with underlying diabetes mellitus and prostate cancer. The diagnosis was assisted by computed tomography, urography, and gram staining. Read More

Surg Pathol Clin 2018 Dec 17;11(4):797-812. Epub 2018 Oct 17.

Department of Pathology and Laboratory Medicine, Henry Ford Health System, Henry Ford Hospital, K6, W615, 2799 West Grand Boulevard, Detroit, MI 48202, USA; Department of Pathology and Laboratory Medicine, Wayne State University School of Medicine, 2799 West Grand Boulevard, Detroit, MI 48202, USA. Electronic address:

The most important prognostic parameter in renal cell carcinoma is tumor stage. Although pathologic primary tumor (pT) categories are influenced by tumor size (pT1-pT2), critical elements (≥pT3) are dictated by invasion of structures, including renal sinus, perinephric fat, and the renal vein or segmental branches. Because this invasion can be subtle, awareness of the unique characteristics of renal cell carcinoma is critical for the pathologist to aid in clinical decision making. Read More

BMC Surg 2018 Nov 16;18(1):100. Epub 2018 Nov 16.

Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China.

Background: Thoracic endovascular aortic repair (TEVAR) is the therapeutic choice for type B aortic dissection. One of the most unfavored complications of this procedure is hemorrhage, which has a low incidence but high mortality. Renal hemorrhage (RH) after endovascular aortic repair has been rarely reported. Read More

BMC Nephrol 2018 Nov 9;19(1):319. Epub 2018 Nov 9.

Department of Clinical Medicine, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka.

Background: Infective complications following percutaneous renal biopsy are rare, even among immunocompromised. However it is important to be vigilant about such complications, to detect them early and prevent morbidity and mortality. We report a case of retroperitoneal abscess with extension to subcutaneous plane after a renal biopsy. Read More

Urol Int 2018 18;101(4):437-442. Epub 2018 Oct 18.

Department of Urology, Tokyo Medical and Dental University Graduate School, Tokyo, Japan.

Introduction: This study is aimed at evaluating the incidence and predictors of adherent perinephric fat (APF) in Asians during partial nephrectomy (PN), and determining the impact of APF on perioperative outcomes.

Materials And Methods: A total of 231 Asian patients with renal tumors underwent PN, and their Mayo adhesive probability (MAP) score was calculated. APF was intraoperatively determined, and the perioperative data were compared according to the presence of APF. Read More

Ultrasound Med Biol 2018 Oct 16. Epub 2018 Oct 16.

Department of Medicine, University of Washington, Seattle, Washington, USA. Electronic address:

Boiling histotripsy (BH) is an experimental focused ultrasound technique that produces non-thermal mechanical ablation. We evaluated the feasibility, short-term histologic effects and the resulting acute inflammatory response to BH ablation of renal cell carcinoma (RCC) in the Eker rat. Genotyped Eker rats were monitored for de novo RCCs with serial ultrasound (US) imaging. Read More

J Vasc Surg Venous Lymphat Disord 2018 Nov;6(6):730-736

Department of Radiology, Division of Vascular and Interventional Radiology, University of Michigan Health System, Ann Arbor, Mich; Cardiovascular and Interventional Radiology, Inova Alexandria Hospital, Alexandria, Va. Electronic address:

Objective: The objective of this study was to determine the incidence of vascular and lymphatic complications after attempted transabdominal thoracic duct cannulation.

Methods: There were 58 patients who underwent attempted thoracic duct cannulation. Patients presented with chyle leak in the chest (n = 40), abdomen (n = 9), neck (n = 8), and pelvis (n = 1). Read More

Case Rep Obstet Gynecol 2018 19;2018:8924823. Epub 2018 Sep 19.

Mayo Clinic, Department of Obstetrics and Gynecology, Rochester, MN, USA.

Routine prenatal care in the United States includes screening for asymptomatic bacteriuria (ASB), which occurs in 2 to 7 percent of pregnant women and can cause urinary tract infection and pyelonephritis. We present the case of a pregnant woman affected by multidrug resistant Klebsiella induced ASB during her prenatal screen, which was untreated due to a repeat urine culture showing mixed flora; subsequently, the patient's postpartum course was complicated by pyelonephritis and perinephric abscess, concluding in a radical nephrectomy. Current recommendations are to treat ASB after two consecutive voided urine cultures showing the same bacterial strain in quantitative counts of =/> 10(5) colony forming units (cfu)/mL or a single-catheterized specimen with quantitative count of =/> 10(2) cfu/mL. Read More

Indian J Radiol Imaging 2018 Jul-Sep;28(3):350-353

Department of Radiology, Division of Vascular and Interventional Radiology, University of Michigan Health System, Ann Arbor, Michigan, USA.

Purpose: To report the approach, technical success, clinical outcomes, and complications of interventional radiology-operated endoscopy using the LithoVue disposable endoscope.

Materials And Methods: 12 patients, 6 (50%) males and 6 (50%) females, underwent interventional radiology-operated endoscopy using the LithoVue disposable endoscope between April 2016 and August 2017. Presenting complaint, reason for endoscopic evaluation, technical success, clinical success, procedure time, fluoroscopy time, hospital length of stay, and complications were recorded. Read More

J Med Imaging Radiat Oncol 2018 Oct;62 Suppl 1:96

Department of Radiology, Concord Repatriation General Hospital, Concord, New South Wales, Australia.

J Vasc Interv Radiol 2018 Oct 5. Epub 2018 Oct 5.

Department of Interventional Radiology, Division of Interventional Radiology, Massachusetts General Hospital, 55 Fruit St., GRB 293, Boston, MA 02214. Electronic address:

Purpose: To assess safety and renal-function outcomes after microwave (MW) ablation of localized stage T1 renal cell carcinoma (RCC).

Materials And Methods: A retrospective review was conducted of 38 patients (28 men; mean age, 69 y; range, 51-88 y) who underwent computed tomography (CT)-guided MW ablation for stage T1N0M0 RCC. Baseline and follow-up renal function surrogates including creatinine level and estimated glomerular filtration rate (eGFR) were statistically compared. Read More

Urol Oncol 2018 Sep 15. Epub 2018 Sep 15.

Department of Urology, David Geffen School of Medicine at University of California, Los Angeles, CA; Institute of Urologic Oncology, David Geffen School of Medicine at University of California, Los Angeles, CA.

Background: Although tumor tract seeding from renal mass biopsy (RMB) is exceedingly rare, the possibility of tumor capsule violation from RMB leading to perinephric fat invasion has not been quantified. We evaluated the association between RMB and perinephric fat invasion in patients with clinical T1a renal cell carcinoma who underwent partial or radical nephrectomy.

Materials And Methods: We reviewed the National Cancer Database from 2010-2013 and identified patients who underwent surgery for clinical T1a tumors. Read More

J Korean Med Sci 2018 Sep 1;33(38):e236. Epub 2018 Aug 1.

Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.

Background: Unenhanced computed tomography (UCT) may be useful for evaluating acute pyelonephritis; however, no study has compared UCT with enhanced computed tomography (ECT) as a diagnostic tool. We evaluated a clinical usefulness of UCT versus ECT in acute pyelonephritis (APN).

Methods: We reviewed the clinical and radiological data from 183 APN-suspected patients who underwent UCT and ECT simultaneously at emergency room (ER) over a two-year period. Read More

J Coll Physicians Surg Pak 2018 Sep;28(9):S160-S161

Department of Radiology, Civil Hospital and Dow University of Health Sciences, Karachi.

Large aneurysms seen in renal angiomyolipoma are usually more common in patients with tuberous sclerosis in comparison with sporadic cases and they are more prone to hemorrhage ranging from renal hematoma to life-threatening perirenal hemorrhages. We present a case of 13-year female patient who was referred to Civil Hospital, Karachi, with bilateral flank pain, cutaneous nodule and low intelligence. Her color doppler ultrasound revealed pseudoaneurysm in left kidney on the background of bilateral renal angiomyolipomas. Read More

Urol Oncol 2018 11 27;36(11):499.e17-499.e22. Epub 2018 Aug 27.

Albert Einstein College of Medicine, Bronx, NY; Montefiore Medical Center, Medical Arts Pavilion, Bronx, NY. Electronic address:

Introduction: Recent studies have proposed that nearby fat deposits may have metabolic influence on kidney cancer pathobiology. Both fat quantity and quality may play unique roles in this complex relationship. As such, we investigated whether perinephric fat surface area (PFA), a quantitative measure of fat, or Mayo Adhesive Probability (MAP) score, a qualitative measure, were predictive of malignant pathology or Fuhrman grade in small renal masses. Read More

J Endourol 2018 Oct 25;32(10):928-933. Epub 2018 Sep 25.

1 Department of Urology, Tokyo Women's Medical University , Tokyo, Japan .

Objectives: Mayo adhesive probability (MAP) score quantifies adherent perinephric fat (APF) and is associated with the prolongation of surgery duration or the increase of surgical complication rates.

Patients And Methods: In this study, 311 patients who underwent robot-assisted partial nephrectomy (RAPN) at our institute were included. APF was quantified using the MAP score calculated using perinephric fat thickness and stranding seen on a preoperative enhanced CT scans. Read More

Curr Opin Urol 2018 Nov;28(6):544-549

Division of Urology, Department of Surgical Sciences, San Giovanni Battista Hospital, University of Studies of Torino, Turin, Italy.

Purpose Of Review: To summarize the current knowledge about the evaluation of disease persistence and recurrence after focal therapy ablation (FTA) for small renal masses and to assess the outcomes and complications of related treatment options.

Recent Findings: FTA procedures continuously increased over the last 20 years, being now performed in more than one on 10 patients with T1a renal cell carcinoma. Disease recurrence seems to occur more often following radiofrequency ablation (RFA) compared with cryoablation. Read More

Beijing Da Xue Xue Bao Yi Xue Ban 2018 Aug;50(4):743-746

Department of diagnostic Ultrasound，d HospPeking University Thirital 100191, China.

Xanthogranulomatous pyelonephritis (XGP) is an unusual form of chronic pyelonephritis in which the renal parenchyma is destroyed and replaced by lipid-laden foamy macrophages. It usually affects middle-aged women with a history of recurrent urinary tract infection, diabetes, or kidney stones. The inflammatory process is usually diffuse and can extend beyond the kidney. Read More

BJU Int 2018 Aug 16. Epub 2018 Aug 16.

Department of Urology, Mayo Clinic, Rochester, MN, USA.

Objective: To investigate the prognostic significance of various patterns of extrarenal extension that comprise pathological stage T3a clear-cell renal cell carcinoma (ccRCC) amongst patients undergoing nephrectomy for non-metastatic disease.

Patients And Methods: A retrospective review of 563 patients who underwent radical nephrectomy for pathologically confirmed T3aN0/NxM0 ccRCC between 1970 and 2011 was performed. All pathological slides were re-reviewed by one urological pathologist. Read More

Case Rep Urol 2018 9;2018:9285671. Epub 2018 Jul 9.

Department of Urology, Abiko Toho Hospital, 1851-1 Abiko, Abiko-shi, Chiba-ken 270-1166, Japan.

We present a case of a 45-year-old female who experienced rupture of a right calyceal diverticulum caused by ureteroscopy. Fifteen hours after the operation, she had severe right flank pain and a high fever (38.9°C). Read More

Clin Lymphoma Myeloma Leuk 2018 Nov 9;18(11):724-730. Epub 2018 Aug 9.

Department of Hematology, Affiliated ZhongShan Hospital of Dalian Medical University, Dalian, People's Republic of China. Electronic address:

TEMPI (telangiectasias, erythrocytosis with elevated erythropoietin, monoclonal gammopathy, perinephric fluid collections, intrapulmonary shunting) syndrome is a newly described clinical entity that is generally considered a plasma cell dyscrasia with multiple system involvement. The etiology and pathophysiology of this condition remains elusive. Nevertheless, clonal plasma cells and monoclonal protein appear to be major contributors. Read More

Isr Med Assoc J 2018 Aug;20(8):499-503

Department of Nephrology and Hypertension, Hebrew University-Hadassah School of Medicine, Jerusalem, Israel.

Background: Risk factors for bleeding complications after percutaneous kidney biopsy (PKB) and the role of primary hemostasis screening are not well established.

Objectives: To determine the role of primary hemostasis screening and complication outcomes among individuals who underwent PKB.

Methods: We reviewed data of 456 patients who underwent PKB from 2010 to 2016 in a large university hospital. Read More

Anim Genet 2018 Oct 1;49(5):483-487. Epub 2018 Aug 1.

Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.

The identification of genetic variations underlying desired phenotypes is one of the main challenges of current livestock genetic research. High-throughput transcriptome sequencing has been recognized as an efficient way to unravel the rich genetic variants across various species. The Lanzhou Fat-Tail sheep is an endangered sheep breed in China with a notable feature of an exaggerated fat tail that also independently occurs in other sheep breeds. Read More

Cent European J Urol 2018 16;71(2):228-233. Epub 2018 Apr 16.

Department of Urology, Insititute of Nephro Urology, Bangalore, India.

Introduction: Emphysematous pyelonephritis (EPN) is a rare clinical entity, characterized by gas in the renal system, due to an acute, fulminant and potentially fatal necrotizing process with varying clinical presentations. It is much more aggressive than uncomplicated pyelonephritis, with the mortality of 20-40% in the contemporary meta-analysis.

Material And Methods: A retrospective record review of inpatients at the Institute of Nephro Urology, Bangalore, India (2007-2014), who were treated after EPN was diagnosed with the aid of a CT (computed tomography) scan. Read More

J Robot Surg 2018 Jul 7. Epub 2018 Jul 7.

Department of Urology, CHU Rennes, 2 rue Henri Le Guilloux, 35000, Rennes, France.

Controversies have been raised and still exist regarding several technical aspects of robot-assisted partial nephrectomy (RAPN). While the "perfect RAPN" has still to be determined, we aimed to report a simplified technique of RAPN in a step-by-step fashion and the perioperative outcomes of a single-center series. A simplified technique of RAPN was developed, refined and standardized over the past 7 years in an academic department of urology to make it as safe and as reproducible as possible, the main goal being to make it an "easy to learn" technique for fellows. Read More

Rheumatol Int 2018 Oct 29;38(10):1941-1948. Epub 2018 Jun 29.

Division of Rheumatology, Department of Internal Medicine, Catholic Kwandong University College of Medicine, International St. Mary's Hospital, Simgok-dong 291, Seo-gu, Incheon, Republic of Korea.

Immunoglobulin G4-related disease (IgG4-RD) is a chronic, immune-mediated-, systemic disease that is characterized by IgG4 plasma cell infiltration with fibrotic changes in various organs. The most affected organs are pancreas and salivary glands. Kidney can be rarely involved, and is usually represented as a renal mass and organomegaly. Read More

J Endourol 2018 Sep 31;32(9):891-895. Epub 2018 Jul 31.

1 Division of Urology, Rush University Medical Center , Chicago, Illinois.

Introduction: Pyelovenous/pyelolymphatic backflow from acute ureteral obstruction, manifesting radiologically as perinephric fat stranding (PFS), may result in elevated serum creatinine. Among patients with acutely obstructing ureterolithiasis, we evaluated the relationship between degree of PFS and changes in serum creatinine from baseline.

Methods: Our tertiary care center's radiology dictation system (Fluency Discovery, M Modal) was queried for noncontrast abdominopelvic CT studies obtained in the Emergency Department for patients with obstructing ureteral calculi from 7/2015 to 4/2016. Read More

Med Sci Monit 2018 Jun 21;24:4254-4261. Epub 2018 Jun 21.

Clinical Laboratory, First Affiliated Hospital of Guangdong Pharmaceutical University, Guongzhou, Guangdong, China (mainland).

BACKGROUND Cytokeratin 19 (CK19) is a typical epithelial marker. In this study, we determined whether epidermal growth factor (EGF) or basic fibroblast growth factor (bFGF) could enhance CK19 expression in adipose-derived stem cells (ADSCs), thereby inducing the differentiation of ADSCs into epithelial-like cells. MATERIAL AND METHODS ADSCs were isolated from perinephric fat, and the expression of CD29, CD90, and CD105 was confirmed. Read More

Clin Transplant 2018 Aug 29;32(8):e13312. Epub 2018 Jun 29.

Division of Vascular and Endovascular Surgery, Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA.

Renal transplantation remains the definitive treatment for end-stage renal disease (ESRD). The shorter renal vein in right donor nephrectomies is associated with higher incidence of technical failure. We present here our experience with autologous internal jugular vein (IJV) conduits to facilitate living-donor transplants. Read More

Am J Surg Pathol 2018 Sep;42(9):1253-1261

University of Calgary and Calgary Laboratory Services, Calgary, AB, Canada.

Staging criteria for renal cell carcinoma differ from many other cancers, in that renal tumors are often spherical with subtle, finger-like extensions into veins, renal sinus, or perinephric tissue. We sought to study interobserver agreement in pathologic stage categories for challenging cases. An online survey was circulated to urologic pathologists interested in kidney tumors, yielding 89% response (31/35). Read More

Am J Surg Pathol 2018 Sep;42(9):1156-1165

Robert J Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic.

The incidence of renal cell carcinoma (RCC) is known to be higher in patients with end-stage renal disease, including those with acquired cystic kidney disease due to dialysis. Acquired cystic disease (ACD)-associated RCC was recently incorporated into the 2016 WHO Classification of Tumors of the Urinary System and Male Genital Tract as a distinct entity and is reportedly the most common RCC arising in end-stage renal disease. In this study, we sought to further describe clinicopathologic findings in a large series of ACD-RCC, emphasizing histologic features, immunophenotype, clinical outcome, and patterns of disease spread. Read More

J Urol 2018 Sep 24;200(3):656-657. Epub 2018 May 24.

Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, Utah.

Urol Case Rep 2018 May 1;18:35-37. Epub 2018 Mar 1.

Department of Urology, Faculty of Medicine, Indonesia University, Cipto Mangunkusumo Hospital, Jalan Diponegoro No. 71, Jakarta 10430, Indonesia.

Int J Surg 2018 Jun 30;54(Pt A):216-221. Epub 2018 Apr 30.

Department of Urology, Medical College of People's Liberation Army, Chinese People's Liberation Army General Hospital, Beijing, China. Electronic address:

Objectives: To introduce a 'kidney priority' strategy in treating large renal angiomyolipoma (RAML) with retroperitoneal laparoscopic nephron sparing surgery (RLNSS).

Patients And Methods: From 2010 to 2017, 41 patients with large RAML underwent RLNSS. Distinguished from the standard practice, the kidney was preferentially mobilized and separated from the RAML. Read More

J Nepal Health Res Counc 2018 Mar 13;16(1):66-72. Epub 2018 Mar 13.

Department of Nephrology, National Academic of Medical Sciences, Bir Hospital, Kathmandu, Nepal.

Background: Percutaneous renal biopsy is performed for diagnosis and prediction of prognosis of renal diseases. Adequacy of tissue and clinically significant bleeding are the main issues of the procedure. We aimed to compare these issues in renal biopsy by blind and real time ultrasound guided technique. Read More

Int J Mol Sci 2018 Apr 29;19(5). Epub 2018 Apr 29.

School of Biology and Pharmaceutical Engineering, Wuhan Polytechnic University, Wuhan 30023, China.

The present study aims to investigate the protective effects of ω-3 polyunsaturated fatty acids (ω-3PUFAs) against high-fat diet induced male mouse reproductive dysfunction and to explore circadian regulation mechanisms. Male C57BL/6 mice were randomly divided into three groups and fed a normal chow diet (control group, CON), a high-fat diet (HFD group) or a HFD supplemented with fish oil (FO group) for 12 weeks. After 12 weeks of feeding, the body weight and the ratio of perinephric and epididymal fat weight to body weight were significantly higher in the HFD group compared with the CON group. Read More

J Emerg Med 2018 07;55(1):96-100

Department of Emergency Medicine, University of Virginia Health System, Charlottesville, Virginia.

Background: Renal colic is a frequently encountered diagnosis among emergency department patients. Point-of-care (POC) ultrasound has taken on an increasingly important role in the diagnostic strategy of this disease, as it has been shown to be an effective modality for diagnosis and for guiding management. The primary pathology that the emergency physician will evaluate for in cases of suspected renal colic is hydronephrosis, which is a dilatation of the renal pelvis and calyces resulting from a distal obstruction such as a ureteral stone. Read More

J Community Hosp Intern Med Perspect 2018 17;8(2):76-79. Epub 2018 Apr 17.

Department of Internal Medicine, SSM St. Mary's Hospital - St. Louis, St. Louis, MO, USA.

Group B streptococcus infections (GBSI) are commonly associated with neonates and pregnant women, but may also affect nonpregnant adults. Among its spectrum of manifestations, perinephric abscess (PA) is exceedingly rare. Comorbid conditions such as diabetes mellitus (DM) and immunosuppression increase the risk of GBSI. Read More

Urology 2018 Jul 18;117:150-152. Epub 2018 Apr 18.

Department of Urology, Loma Linda University Health, Loma Linda, CA.

Perinephric urinomas commonly arise following traumatic injury or high-grade obstruction from kidney stones or lower urinary tract disorders. Not only are spontaneous urinomas rare in the pediatric population, but malignancy presenting with perinephric urinomas have only been described in the adult population. In this case report, we report flank pain from a spontaneous perinephric urinoma as the presenting symptom of lymphoma in a pediatric patient. Read More

World J Urol 2018 Oct 19;36(10):1635-1642. Epub 2018 Apr 19.

Department of Urology, Rennes University Hospital, Rennes, France.

Objective: To assess the performance of computed tomography (CT) texture analysis to predict the presence of adherent perinephric fat (APF).

Materials And Methods: Seventy patients with small renal tumors treated with robot-assisted partial nephrectomy were included. Patients were divided into two groups according to the presence of APF. Read More

Indian J Nucl Med 2018 Apr-Jun;33(2):161-164

Department of Nuclear Medicine, Apollo Hospitals, Chennai, Tamil Nadu, India.

Tc diethylenetriaminepentaacetic acid (DTPA) renogram is a commonly performed evaluation postrenal transplant to assess graft function and for early detection of suspected immediate and late transplant-associated complications. Although several modalities can be utilized to detect perinephric collection in posttransplant period, the utility of Tc DTPA single-photon emission-computed tomography (SPECT-CT) is not recognized. Herein, we discuss the incremental role of seldom considered SPECT-CT in early detection, leading to timely appropriate management and graft salvage in a case of posttransplant deteriorating renal allograft as a result of subcapsular hematoma. Read More

Am J Emerg Med 2018 Dec 28;36(12):2187-2191. Epub 2018 Mar 28.

Department of Emergency Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea.

Introduction: The aim of this study was to identify factors associated with absent hematuria in patients with symptomatic urinary stones.

Methods: This retrospective study analyzed the clinical and imaging findings of emergency department patients who underwent computed tomography (CT) for suspected ureteral colic over the past 2years. All patients also underwent a microscopic urinalysis, and the presence of 4 or more red blood cells/high-power field was defined as microhematuria. Read More

Eur Radiol 2018 Sep 19;28(9):3751-3759. Epub 2018 Mar 19.

Radiology and Imaging Sciences, National Institutes of Health Clinical Center, 10 Center Dr, Bethesda, MD, 20892, USA.

Objectives: To use magnetic resonance imaging (MRI) and computed tomography (CT) to define abdominal involvement in Erdheim-Chester disease (ECD), and to investigate the association between these findings and the BRAF mutation.

Methods: This prospective study was performed on 61 ECD patients (46 men). The MRI and CT imaging studies were reviewed independently by two experienced radiologists. Read More

Urol Case Rep 2018 Mar 21;17:26-28. Epub 2017 Nov 21.

Department of Urology, School of Medicine, Bushehr University of Medical Sciences, Bushehr, Iran.

Abdom Radiol (NY) 2018 Oct;43(10):2555-2563

Department of Radiology, MedStar Georgetown University Hospital, CCC Building, Ground Floor, 3800 Reservoir Road NW, Washington, DC, 20007, USA.

In patients with end-stage renal disease, the treatment of choice for most patients is renal transplantation. Complications that occur after kidney transplant can be broadly divided into vascular and non-vascular categories. Non-vascular complications can further be divided into surgical and medical categories. Read More

Oncotarget 2018 Feb 15;9(11):10091-10099. Epub 2017 Dec 15.

Department of Urology, Chinese PLA General Hospital, Kidney Disease State Key Laboratory of Chinese PLA General Hospital, Beijing, 100853, China.

In patients with renal cell carcinoma (RCC), postoperative upstaging including perinephric fat invasion (PNI) and renal sinus invasion (RSI) leads to unfavorable oncological outcomes. Determining the preoperative risk factors for postoperative upstaging could be beneficial for treatment planning. In this study, 267 RCC patients who underwent radical nephrectomy were studied retrospectively. Read More

Radiol Case Rep 2017 Dec 18;12(4):731-737. Epub 2017 Aug 18.

Radiology department, Southend University Hospital, Essex, UK.

We describe a rare case of renal lymphangioma presenting as a focal unilateral multicystic renal mass and document the first reported use of triparametric ultrasound (B-mode, Doppler, and contrast-enhanced ultrasound) in its diagnosis and discrimination from other focal multicystic lesions. Renal lymphangiomas are rare, benign, typically developmental lesions composed of cystic dilatation of the lymphatic ducts, usually occurring bilaterally as perinephric collections or parapelvic cysts mimicking hydronephrosis. Radiologists have an important role in suggesting the diagnosis, as clinical presentation can be nonspecific. Read More