155 results match your criteria Mesoblastic Nephroma Imaging


Pediatric Renal Neoplasms:: MR Imaging-Based Practical Diagnostic Approach.

Magn Reson Imaging Clin N Am 2019 May;27(2):279-290

Department of Radiology, Seattle Children's, University of Washington, 4800 Sand Point Way Northeast, Seattle, WA 98105, USA.

Pediatric renal tumors may be malignant or benign. Wilms tumor, the most common malignant pediatric renal tumor, arises sporadically or with various syndromes. Renal cell carcinoma typically presents in older children. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S10649689193000
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http://dx.doi.org/10.1016/j.mric.2019.01.006DOI Listing
May 2019
5 Reads

Congenital Mesoblastic Nephroma Presenting with Hematuria in a Neonate.

J Nippon Med Sch 2018 ;85(5):297-299

Department of Radiology, Shandong Provincial Hospital affiliated to Shandong University.

Congenital mesoblastic nephroma (CMN) is a rare tumor of infancy. CMNs can be histologically divided into classic, cellular, and mixed subtypes. Cellular CMNs are difficult to differentiate from Wilms tumors. Read More

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http://dx.doi.org/10.1272/jnms.JNMS.2018_85-48DOI Listing
February 2019
1 Read

Specific computed tomography imaging characteristics of congenital mesoblastic nephroma and correlation with ultrasound and pathology.

J Pediatr Urol 2018 Dec 1;14(6):571.e1-571.e6. Epub 2018 Aug 1.

Department of Radiology, The First Affiliated Hospital, Sun Yat-sen University, 58th, The Second Zhongshan Road, Guanzhou, China. Electronic address:

Introduction: Congenital mesoblastic nephroma (CMN) is a common solid renal tumor in the neonate. Congenital mesoblastic nephroma can be divided into classic, cellular, and mixed types. The prognosis of CMN is very optimistic. Read More

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http://dx.doi.org/10.1016/j.jpurol.2018.07.020DOI Listing
December 2018
2 Reads

Dramatic bone remodeling following larotrectinib administration for bone metastasis in a patient with TRK fusion congenital mesoblastic nephroma.

Pediatr Blood Cancer 2018 Oct 12;65(10):e27271. Epub 2018 Jun 12.

Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee.

Mesoblastic nephroma is the most frequent renal tumor in newborns and young infants, and the cellular type is characterized by an ETV6-NTRK fusion, which constitutively activates the tropomyosin-related kinase (TRK) signaling pathway. Larotrectinib is a highly selective TRK inhibitor with activity in adult and pediatric patients who have TRK fusions. We present a rare case of a patient with mesoblastic nephroma metastatic to bone who had a dramatic response to larotrectinib. Read More

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http://dx.doi.org/10.1002/pbc.27271DOI Listing
October 2018
1 Read

Fetal biparametric MR imaging in the diagnosis of congenital mesoblastic nephroma.

Turk J Urol 2018 May 1;44(3):278-280. Epub 2018 May 1.

Department of Surgical and Biomedical Sciences, Division of Radiology 2, S. Maria della Misericordia Hospital, Perugia University, Perugia, Italy.

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http://dx.doi.org/10.5152/tud.2018.49696DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5937649PMC
May 2018
4 Reads

[Mesenchymal abdominal tumors in children].

Authors:
G A Krombach

Radiologe 2018 Jan;58(1):3-9

Klinik für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Giessen, Justus-Liebig Universität Giessen, Klinikstraße 33, 35392, Giessen, Deutschland.

Mesenchymal tumors in childhood comprise benign and malign entities and differ regarding typical sites of manifestation, age peak and clinical symptoms. In some cases biopsy is mandatory. If nephroblastoma is a possible diagnosis, biopsy must be avoided by all means in order to avoid biopsy tract metastasis. Read More

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http://dx.doi.org/10.1007/s00117-017-0333-9DOI Listing
January 2018
6 Reads

Unusual Presentation of Metanephric Stromal Tumor in a Neonate.

Indian J Med Paediatr Oncol 2017 Jul-Sep;38(3):357-359

Department of Paediatric Surgery, LTMG Hospital, Mumbai, Maharashtra, India.

Metanephric stromal tumor (MST) of kidney is an under-reported benign stromal specific renal neoplasm with good prognosis. This tumor is to be differentiated from congenital mesoblastic nephroma and clear-cell sarcoma of the kidney. In this case report, we describe the imaging, gross, and microscopic features of MST with ischemic left kidney in a 1-month-old child and discuss treatment with relevant literature. Read More

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http://dx.doi.org/10.4103/ijmpo.ijmpo_27_16DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5686983PMC
December 2017
11 Reads

Imagistic and histopathological description of a cystic nephroma during early second trimester of gestation. Case report.

Med Ultrason 2016 Dec;19(3):327-329

IMOGEN, Centre of Advanced Research Studies, Cluj-Napoca, Romania.

Cystic nephroma is a rare and benign renal tumour of unknown origin, usually diagnosed in the first years of childhood or during adult life. To our knowledge, there are no records in the literature of this particular tumour being descried prenatally. We present a case of a fetus diagnosed with cystic nephroma on 16 weeks of gestation. Read More

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https://www.medultrason.ro/medultrason/index.php/medultrason
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http://dx.doi.org/10.11152/mu-930DOI Listing
December 2016
5 Reads

Bi-parametric magnetic resonance imaging applied to obstetrics.

J Obstet Gynaecol 2017 Jul 17;37(5):670-672. Epub 2017 Mar 17.

d Santa Maria del Carmine Hospital , Provincial Health Care Services, Institute of Pathology , Rovereto , Italy.

Foetal magnetic resonance imaging (MRI) plays an increasingly important role in the diagnosis of foetal abnormalities. Over the years, we have successfully applied bi-parametric MRI (bp-MRI) to the following obstetric conditions: (1) neurologic vascular diseases; (2) assessment of lung parenchyma maturation; (3) renal pathologies, such as polycystic kidney, suspected renal infarction, unilateral or bilateral renal agenesis; (4) placental pathologies, as twin-twin transfusion syndrome or placenta accreta; (5) benignant and malignant congenital tumours or cysts of the liver, such as haemangioendothelioma, hepatoblastoma or metastatic neuroblastoma, of the kidney (e.g. Read More

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http://dx.doi.org/10.1080/01443615.2017.1281237DOI Listing
July 2017
13 Reads

Management of mixed type congenital mesoblastic nephroma: Case series and review of the literature.

J Neonatal Perinatal Med 2017 ;10(1):113-118

Department of Pediatrics, Division of Neonatology, College of Medicine, Univeristy of Kentucky, Lexington, KY, USA.

Congenital mesoblastic nephroma (CMN) is the most common renal tumor of infancy; however, it occurs infrequently with an incidence of 1 : 125,000. The cellular and classical variants are the most common subtypes of tumors, with a mixed variant occurring infrequently. We describe two cases of mixed variant CMN, which presented within days of each other differing in their clinical behavior. Read More

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http://dx.doi.org/10.3233/NPM-1617DOI Listing
October 2017
2 Reads

Cytological diagnosis of mesoblastic nephroma: A report of three cases with summary of prior published cases.

Diagn Cytopathol 2016 Oct 21;44(10):823-7. Epub 2016 Jun 21.

Department of Pathology, IPGME&R, Kolkata, India.

Congenital mesoblastic nephroma (CMN) is a rare pediatric renal neoplasm, occurring most commonly in the first few months of life, with a favourable clinical outcome. Accurate pre-operative cytological diagnosis of this entity is important as pre-operative chemotherapy is not recommended and surgery is the treatment of choice. Cytodiagnosis of this rare tumor is discussed in only a few case reports. Read More

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http://dx.doi.org/10.1002/dc.23519DOI Listing
October 2016
14 Reads

Uncommon renal tumors in children: A single center experience.

J Indian Assoc Pediatr Surg 2016 Apr-Jun;21(2):61-5

Department of Paediatric Surgery, Nil Ratan Sircar Medical College and Hospital, Kolkata, West Bengal, India.

Aims: Scrutiny over the clinical behaviors, management, and the final outcome of some rare renal neoplasm in order to find out some hidden facts about these tumors which are playing an important role in the disease course and its management.

Materials And Methods: Retrospective evaluation of uncommon (non-Wilms') renal neoplasm in the pediatric population in a tertiary care center. Fifteen cases of uncommon renal tumors were treated in our institution over the last 5 years (January 2008 to December 2012). Read More

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http://dx.doi.org/10.4103/0971-9261.176940DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4790130PMC
April 2016
12 Reads

Renal Tumors of Childhood: Radiologic-Pathologic Correlation Part 1. The 1st Decade: From the Radiologic Pathology Archives.

Radiographics 2016 Mar-Apr;36(2):499-522

From the Department of Radiology and Radiological Sciences (E.M.C.), F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences (A.R.G.), 4301 Jones Bridge Rd, Bethesda, MD 20814; Pediatric Radiology Section, American Institute for Radiologic Pathology, Silver Spring, Md (E.M.C.); and Department of Pathology, Eastern Virginia Medical School, Norfolk, Va (R.M.C.).

Wilms tumor is the second most common pediatric solid tumor and by far the most common renal tumor of infants and young children. As most tumors are large at presentation and are treated with nephrectomy, the role of imaging is primarily in preoperative planning and evaluation for metastatic disease. However, with treatment protocols increasingly involving use of preoperative (neoadjuvant) chemotherapy (the standard in Europe) and consideration of nephron-sparing surgery, the role of imaging is evolving to include providing initial disease staging information and a presumptive diagnosis to guide therapy. Read More

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http://dx.doi.org/10.1148/rg.2016150230DOI Listing
January 2017
9 Reads

Growing Renal Mass: Lessons Learned on the Road From an Atypical Presentation to Successful Therapy.

Urol Case Rep 2015 Sep 26;3(5):157-60. Epub 2015 Jun 26.

Division of Urology, The Children's Hospital of Philadelphia, Philadelphia, USA.

A 25 4/7 week boy was born with a prenatal diagnosis of polyhydramnios and enlarged left kidney. Over the next 2 months serial ultrasounds demonstrated abnormal growth of the kidney, with 28.9% split function. Read More

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http://dx.doi.org/10.1016/j.eucr.2015.06.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4672655PMC
September 2015
3 Reads

Congenital Mesoblastic Nephroma Presenting With Hematuria in a Neonate: A Case Report.

Urology 2016 Feb 23;88:189-91. Epub 2015 Nov 23.

Department of Paediatric Surgery and Urology, Children's Hospital at Westmead, Sydney, New South Wales, Australia; Discipline of Paediatrics & Child Health, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia.

Congenital mesoblastic nephroma (CMN) is the most frequent renal neoplasm of newborns and young infants. Four cases presenting with hemorrhagic manifestations have been reported in the English literature (Hu et al, 2006; Bolande et al, 1967). We report the unusual clinical and radiographic findings of a 2-day-old neonate with hematuria secondary to a CMN. Read More

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http://dx.doi.org/10.1016/j.urology.2015.10.026DOI Listing
February 2016
3 Reads

Congenital mesoblastic nephroma: Its diverse clinical features - A literature review with a case report.

J Obstet Gynaecol 2016 14;36(3):340-4. Epub 2015 Oct 14.

a Department of Obstetrics and Gynecology , Jichi Medical University , Tochigi , Japan.

To characterise congenital mesoblastic nephroma (CMN), with special emphasis on polyhydramnios and the neonatal prognosis, we summarise 31 CMN patients (30 reported patients and the present patient). CMN was detected at a median of 30 weeks' gestation, and infants were delivered at a median of 34 weeks' gestation. Of 27 patients with available data, 19 (70%) had polyhydramnios, of which 8 required amnio- drainage. Read More

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http://dx.doi.org/10.3109/01443615.2015.1060203DOI Listing
January 2017
2 Reads

In vivo imaging of Aminopeptidase N (CD13) receptors in experimental renal tumors using the novel radiotracer (68)Ga-NOTA-c(NGR).

Eur J Pharm Sci 2015 Mar 13;69:61-71. Epub 2015 Jan 13.

Department of Nuclear Medicine, University of Debrecen, Hungary; Scanomed LTD, Debrecen, Hungary. Electronic address:

Purpose: Aminopeptidase N (APN/CD13) plays an important role in tumor neoangiogenic process and the development of metastases. Furthermore, it may serve as a potential target for cancer diagnosis and therapy. Previous studies have already shown that asparagine-glycine-arginine (NGR) peptides specifically bind to APN/CD13. Read More

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http://dx.doi.org/10.1016/j.ejps.2015.01.002DOI Listing
March 2015
9 Reads

Congenital mesoblastic nephroma: Clinical analysis of eight cases and a review of the literature.

Oncol Lett 2014 Nov 1;8(5):2007-2011. Epub 2014 Sep 1.

Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai 201102, P.R. China.

Congenital mesoblastic nephroma (CMN) is a mesenchymal renal tumor. The aim of the present study was to review the clinical characteristics and outcome of CMN in infants. A retrospective file review was conducted of eight cases of CMN treated at the Children's Hospital of Fudan University between 2004 and 2012. Read More

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http://dx.doi.org/10.3892/ol.2014.2489DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4186628PMC
November 2014
8 Reads

Multinodular Goiter in children: an important pointer to a germline DICER1 mutation.

J Clin Endocrinol Metab 2014 Jun 14;99(6):1947-8. Epub 2014 Mar 14.

Department of Endocrinology and Diabetes (S.R.R., T.J., C.S.Y.C.), Princess Margaret Hospital for Children; School of Pediatrics and Child Health (S.R.R., G.B., T.J., C.S.Y.C.), University of Western Australia; Departments of Pathology (A.C.), and Diagnostic Imaging (A.B., N.P.), Princess Margaret Hospital for Children; Genetic Services of Western Australia (G.B.), Princess Margaret and King Edward Memorial Hospitals; Institute for Immunology and Infectious Diseases (G.B.), Murdoch University; Telethon Institute for Child Health Research (T.J.), Perth, WA 6008, Australia; (J.R.P.), Minneapolis, Minnesota; and Program in Cancer Genetics, Department of Oncology and Human Genetics (W.D.F.), McGill University, Montreal, QC H3T 1E2, Canada.

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http://dx.doi.org/10.1210/jc.2013-3932DOI Listing
June 2014
9 Reads

Antenatally detected solid tumour of kidney.

BMJ Case Rep 2014 Feb 13;2014. Epub 2014 Feb 13.

Department of Pediatric Surgery, All India Institute of Medical Sciences (AIIMS), New Delhi, Delhi, India.

Congenital renal tumours are rare and usually benign. Polyhydramnios is the most common mode of presentation. Although most cases have been diagnosed postnatally, with advances in imaging technology, an increasing number of cases are being detected on antenatal scans. Read More

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http://casereports.bmj.com/content/2014/bcr-2013-202084.full
Web Search
http://casereports.bmj.com/cgi/doi/10.1136/bcr-2013-202084
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http://dx.doi.org/10.1136/bcr-2013-202084DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3926452PMC
February 2014
3 Reads

Metanephric stromal tumor: An unusual pediatric renal neoplasm.

J Indian Assoc Pediatr Surg 2013 Jul;18(3):115-7

Department of Radio Diagnosis, Safdarjung Hospital and VM Medical College, New Delhi, India.

A renal tumor in a 14-month- old child, who was initially diagnosed as mesoblastic nephroma, but on review post surgery was diagnosed as hyper-differentiated metanephric stromal tumor, with its excellent prognostic outcome. An attempt is made to document imaging features that may enable one to suspect this rare condition. The literature is reviewed with emphasis on its distinction from its look-alikes in the pediatric age group. Read More

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http://dx.doi.org/10.4103/0971-9261.116045DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3760310PMC
July 2013
29 Reads

Multiphasic contrast-enhanced CT and MRI findings of adult mesoblastic nephroma: A report of two cases.

Indian J Radiol Imaging 2013 Jan;23(1):78-80

Department of Radiology, Zhongshan Hospital, Fudan University and Shanghai Medical Imaging Institute, Department of Medical Imaging, Shanghai Medical School, Fudan University, Shanghai 200032, People's Republic of China.

Mesoblastic nephroma (MN) presenting in an adult is extremely rare. The computed tomography (CT) and magnetic resonance imaging (MRI) features of this tumor in adulthood have not been widely reported. We present two additional cases of adult MN and describe the multiphasic contrast-enhanced CT and MRI findings. Read More

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http://dx.doi.org/10.4103/0971-3026.113619DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3737620PMC
January 2013
4 Reads

Case report: Multimodality imaging of a cystic nephroma.

Radiol Technol 2013 Jul-Aug;84(6):559-66

University of Oklahoma Health Sciences Center, Tulsa, USA.

Cystic nephroma is a rare, benign, cystic neoplasm of the kidney. Its defining features include a discrete, complex cystic mass with multiple thin septations. Cystic nephroma often is confused with many different complex cystic masses of the kidney such as mixed epithelial stromal tumors, Wilms tumors, and cystic renal cell carcinoma. Read More

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February 2014
4 Reads

Mixed epithelial and stromal tumor of the kidney.

Kaohsiung J Med Sci 2013 May 21;29(5):280-3. Epub 2012 Dec 21.

Department of Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.

A 44-year-old woman who underwent radical nephrectomy due to a left renal mass presented to our clinic. Results of the histopathological examination showed a mixed epithelial and stromal tumor of the kidney, a rare benign lesion of the kidney. The epidemiology, histopathological features, imaging features, possible pathogeneses, and treatment alternatives are discussed, and the relevant literature is reviewed. Read More

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http://dx.doi.org/10.1016/j.kjms.2012.09.008DOI Listing
May 2013
4 Reads

Cellular mesoblastic nephroma with liver metastasis in a neonate: prenatal and postnatal diffusion-weighted MR imaging.

Korean J Radiol 2013 Mar-Apr;14(2):361-5. Epub 2013 Feb 22.

Department of Radiology and Research Institute of Radiological Science, Severance Children's Hospital, Yonsei University College of Medicine, Seoul 120-752, Korea.

Congenital mesoblastic nephroma (CMN) is the most common renal tumor in the first year of life. Here, we present unique findings of cellular variant CMN seen on prenatal and postnatal MRI with diffusion-weighted imaging (DWI).The mass was well-visualized on prenatal MR DWI with diffusion restriction in the solid portions. Read More

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http://dx.doi.org/10.3348/kjr.2013.14.2.361DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3590353PMC
September 2013
8 Reads

Cytodiagnosis of congenital mesoblastic nephroma: a case report.

Diagn Cytopathol 2013 Mar 26;41(3):234-8. Epub 2011 Aug 26.

Department of Pathology, Government Medical College, Miraj, Maharashtra, India.

Mesoblastic nephroma (MN) is the most common renal tumor diagnosed in infancy. A case of congenital MN was diagnosed in a 6-month old child by fine-needle aspiration cytology. The smears were cellular and consisted of plump spindle cells arranged in clusters along with scattered naked nuclei in the background. Read More

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http://dx.doi.org/10.1002/dc.21764DOI Listing
March 2013
8 Reads

Prenatal sonographic diagnosis of multicystic congenital mesoblastic nephroma.

J Clin Ultrasound 2013 Nov-Dec;41 Suppl 1:59-61. Epub 2012 Dec 27.

Department of Obstetrics and Gynecology, Istanbul University, Istanbul Medical Faculty, Istanbul, Turkey.

The authors report an unusual presentation of congenital mesoblastic nephroma as a multilocular cystic renal lesion. Prenatal sonography revealed a unilateral, encapsulated, multilocular cystic mass with solid components measuring 5.7 × 5. Read More

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http://dx.doi.org/10.1002/jcu.22032DOI Listing
July 2014
6 Reads

Prenatal intrarenal neuroblastoma mimicking a mesoblastic nephroma: a case report.

J Pediatr Surg 2012 Aug;47(8):e21-3

Département de chirurgie viscérale et urologique pédiatrique, Pôle enfant, Hôpital Lapeyronie, 34295 Montpellier, France.

Mesoblastic nephroma is by far the most frequent intrarenal fetal tumor. To the best of our knowledge, we report the first case of a newborn with an intrarenal neuroblastoma that was discovered prenatally. An intrarenal echogenic and homogenous mass was observed on routine prenatal ultrasonography, corroborated by magnetic resonance imaging, in a 30-week gestation fetus. Read More

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http://dx.doi.org/10.1016/j.jpedsurg.2012.03.090DOI Listing
August 2012
32 Reads

Prenatal diagnosis of congenital mesoblastic nephroma.

Fetal Diagn Ther 2013 20;33(1):79-80. Epub 2012 Feb 20.

Unit of Paediatric Surgery, CHU de Bicêtre, Université Paris Sud 11, Le Kremlin Bicêtre, France.

A case of prenatal diagnosis of congenital mesoblastic nephroma by magnetic resonance is described. Read More

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http://dx.doi.org/10.1159/000336464DOI Listing
June 2013
3 Reads

Ossifying renal tumor of infancy (ORTI) - a rare diagnosis.

Klin Padiatr 2011 May 12;223(3):178-9. Epub 2011 May 12.

Department of Pediatric Surgery and Pediatric Urology, Children's Hospital of Cologne, Germany.

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http://dx.doi.org/10.1055/s-0031-1275350DOI Listing
May 2011
5 Reads

Mixed epithelial and stromal tumor of the kidney with elevated serum level of cancer antigen 125.

J Formos Med Assoc 2011 Feb;110(2):125-8

Division of Plastic and Reconstructive Surgery, School of Medicine, National Yang-Ming University, Taipei, Taiwan.

Mixed epithelial and stromal tumor of the kidney is a newly categorized lesion, with few reported cases. We report a rare case of a 45-year-old woman with a palpable abdominal mass and elevated serum level of serum cancer antigen 125, who was not receiving hormones or contraceptive agents. Abdominal magnetic resonance imaging revealed a large multilocular cystic tumor that arose in the left central kidney. Read More

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http://dx.doi.org/10.1016/S0929-6646(11)60020-XDOI Listing
February 2011
7 Reads
1.700 Impact Factor

Cystic nephroma masquerading as hydatid cyst of the kidney.

Indian J Pathol Microbiol 2010 Oct-Dec;53(4):877-9

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http://dx.doi.org/10.4103/0377-4929.72029DOI Listing
February 2011
3 Reads

Neonatal renal tumours.

Authors:
Mark Powis

Early Hum Dev 2010 Oct;86(10):607-12

Department of Paediatric Surgery, Leeds Teaching Hospitals NHS Trust, Leeds, LS1 3EX, United Kingdom.

Neonatal renal tumours are rare, with only 7% of all neonatal tumours arising from the kidney. Presentation is usually as a flank mass or as a coincidental finding on either antenatal or postnatal ultrasound. Mesoblastic nephroma is the most common tumour to be found at this age, but Wilms' tumour and other malignant and benign tumours occur. Read More

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http://dx.doi.org/10.1016/j.earlhumdev.2010.08.018DOI Listing
October 2010
3 Reads

An unusual presentation of a mixed epithelial and stromal tumor in an elderly male.

ScientificWorldJournal 2010 Sep 14;10:1810-3. Epub 2010 Sep 14.

Department of Urology, Emory University School of Medicine, Atlanta, GA, USA.

Mixed epithelial and stromal tumors (MESTs) of the kidney are rare renal neoplasms characterized by mixed cystic and solid components. These tumors are typically present in middle-aged women as a flank mass, or as a cause of flank pain or hematuria. We outline the case of an older male who presented with an enlarging abdominal mass causing symptoms that suggested a partial small bowel obstruction. Read More

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http://dx.doi.org/10.1100/tsw.2010.171DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5763916PMC
September 2010
9 Reads

Mixed epithelial and stromal tumor of the kidney or adult mesoblastic nephroma: an update.

Urol J 2010 ;7(3):141-7

Department of Urology, Kamkar Hospital, Qom University of Medical Sciences, Qom, Iran.

Purpose: Our aim was to review the spectrum of usual and unusual clinical and morphologic findings observed in mixed epithelial and stromal tumor of the kidney (MEST).

Materials And Methods: On the basis of MEDLINE database searches, we assessed all aspects of MEST or adult mesoblastic nephroma since the first report in 1997 till the end of 2009.

Results: Mixed epithelial and stromal tumor is a relatively rare and distinct neoplasm of the kidney that should be distinguished from other renal neoplasms. Read More

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February 2011
2 Reads

Contribution of magnetic resonance imaging to prenatal differential diagnosis of renal tumors: report of two cases and review of the literature.

Fetal Diagn Ther 2010 30;28(2):100-8. Epub 2010 Jun 30.

Arkansas Children's Hospital, 1 Children’s Way, Little Rock, AR 72202, USA.

Enlargement of a kidney on prenatal imaging is usually due to hydronephrosis or cystic renal disease, and much less often results from solid tumors such as mesoblastic nephroma, Wilms' tumor, nephroblastomatosis, renal sarcoma, and angiomyolipoma. All can be diagnosed by ultrasound. Magnetic resonance imaging is useful not only in confirming the presence of a renal mass, but also in the evaluation of the contralateral kidney for subtle abnormalities. Read More

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http://dx.doi.org/10.1159/000313655DOI Listing
December 2010
2 Reads

Cystic nephroma: a diagnostic dilemma.

Saudi J Kidney Dis Transpl 2010 May;21(3):518-20

Department of Surgery, University College of Medical Sciences and Guru Teg Bahadur Hospital, Delhi, India.

Cystic nephroma (CN) is a rare benign neoplasm of kidney with excellent prognosis. An accurate pre-operative diagnosis differentiating CN from other cystic renal malignancies may be impossible by clinical and radiological examination, and histopathological examination provides the final diagnosis. This report describes two adult patients with large multi-locular cystic renal masses on imaging and the diagnosis of CN was clinched post-operatively by the honeycomb appearance of the cut specimen and the finding of multiple, non-communicating fluid filled cysts lined by cuboidal or flattened epithelial cells and absence of blastemal cells on microscopy. Read More

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May 2010
2 Reads

[Surgical treatment of congenital mesoblastic nephroma].

Cir Pediatr 2009 Oct;22(4):201-4

Sección de Urología Infantil, Servicio de Cirugía Pediátrica, Hospital Universitario 12 de Octubre, Madrid.

Background: Renal tumors are rare in infants less than 6 months of age, being congenital mesoblastic nephroma the most frecuent in this age group. We reported 4 cases treated in our hospital in the last years.

Methods: We analyze age, sex, the clinical presentation as well as diagnosis and treatment. Read More

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October 2009
2 Reads

Congenital collision tumors, neonatal renal mesoblastic nephroma and pararenal paraganglioma.

J Perinatol 2009 Oct;29(10):714-6

Department of Radiology, Mallinckrodt Institute of Radiology, St Louis Children's Hospital, Washington University School of Medicine, St Louis, MO 63110, USA.

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http://dx.doi.org/10.1038/jp.2009.103DOI Listing
October 2009
3 Reads

Mixed epithelial and stromal tumors of the kidney: an overview.

Arch Pathol Lab Med 2009 Sep;133(9):1483-6

Department of Pathology, Shadyside Hospital, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania 15232, USA.

Mixed epithelial and stromal tumor of the kidney is a recently recognized distinct neoplasm that should be distinguished from other renal neoplasms. These tumors are relatively rare with a female preponderance. Imaging studies are not diagnostic but reveal a solid or solid and cystic mass in most cases. Read More

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http://dx.doi.org/10.1043/1543-2165-133.9.1483DOI Listing
September 2009
2 Reads

Cellular mesoblastic nephroma (infantile renal fibrosarcoma): institutional review of the clinical, diagnostic imaging, and pathologic features of a distinctive neoplasm of infancy.

Pediatr Radiol 2009 Oct 21;39(10):1066-74. Epub 2009 Jul 21.

Department of Radiology, Ege University Medical Faculty, AD Bornova, Izmir 35100, Turkey.

Background: Cellular mesoblastic nephroma has been associated with a more aggressive course than classic mesoblastic nephroma, including local recurrences and metastases.

Objective: To define the clinicopathologic and imaging features distinguishing cellular from classic mesoblastic nephroma.

Materials And Methods: Retrospective review of clinical charts and imaging studies of ten children with mesoblastic nephroma from 1996 to 2007 at a large children's hospital. Read More

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http://dx.doi.org/10.1007/s00247-009-1348-9DOI Listing
October 2009
3 Reads

Imaging of congenital mesoblastic nephroma with pathological correlation.

Pediatr Radiol 2009 Oct 21;39(10):1080-6. Epub 2009 Jul 21.

Department of Radiology, Children's Hospital Boston, Boston, MA 02115, USA.

Background: There are a variety of imaging findings for congenital mesoblastic nephroma (CMN) and two main pathological variants: classic and cellular.

Objective: To determine whether imaging findings in children can predict the likely pathological variant.

Materials And Methods: We reviewed imaging in children with pathology-proven CMN. Read More

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http://dx.doi.org/10.1007/s00247-009-1354-yDOI Listing
October 2009
6 Reads

[Management of antenatal fetal abdominal tumors. Clues for the diagnosis of a congenital mesoblastic nephroma].

J Gynecol Obstet Biol Reprod (Paris) 2009 Jun 21;38(4):277-85. Epub 2009 Apr 21.

Service de pédiatrie et réanimation néonatale, hôpital Antoine-Béclère, 92141 Clamart cedex, France.

The prenatal diagnosis of abdominal mass poses the problem of its origin. Renal tumors are rarer than neuroblastoma but they are most often congenital mesoblastic nephroma. The congenital mesoblastic nephroma has a good forecast in spite of a sonographic impressive aspect. Read More

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http://dx.doi.org/10.1016/j.jgyn.2009.02.006DOI Listing
June 2009
2 Reads

Cellular mesoblastic nephroma in an infant: report of the cytologic diagnosis of a rare paediatric renal tumor.

Diagn Cytopathol 2009 May;37(5):377-80

Department of Pathology, All India Institute of Medical Sciences, New Delhi, India.

Congenital mesoblastic nephroma is a rare pediatric tumor with a favorable clinical outcome. Cytological features of this uncommon tumor and diagnostic difficulties with other commoner pediatric renal neoplasms have been inadequately discussed in the available literature. We describe the case of a 1-year-old girl who presented with a right renal mass. Read More

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http://doi.wiley.com/10.1002/dc.21028
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http://dx.doi.org/10.1002/dc.21028DOI Listing
May 2009
4 Reads

Sonographic diagnosis of an unusual case of multilocular cystic nephroma mimicking polycystic kidney disease.

Ultraschall Med 2008 Dec 25;29 Suppl 5:264-7. Epub 2008 Nov 25.

Klinik für Kinder- und Jugendmedizin, Sozialstiftung Bamberg.

The following is a report of the unusual case of a multilocular cystic nephroma in an 8-year-old boy who was transferred to our unit with a palpable abdominal tumor. The patient suffered from thoracic pain and night sweating. The laboratory values were normal. Read More

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http://dx.doi.org/10.1055/s-2008-1027853DOI Listing
December 2008
7 Reads

Imaging accuracy and incidence of Wilms' and non-Wilms' renal tumors in children.

J Pediatr Surg 2008 Jul;43(7):1301-7

Division of Pediatric Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX, USA.

Purpose: The purpose of this study is to determine the actual incidence, age distribution, and preoperative imaging accuracy of non-Wilms' tumors (nWT) in children with renal masses.

Methods: Pathologic reports from all tumor nephrectomies or open renal biopsies performed at a single institution from September 1999 to June 2005 were analyzed. Patient demographics, pathologic findings, specific imaging study descriptors, and differential diagnoses were tabulated. Read More

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http://dx.doi.org/10.1016/j.jpedsurg.2008.02.077DOI Listing
July 2008
6 Reads

Best cases from the AFIP: Multilocular cystic renal tumor: cystic nephroma.

Radiographics 2008 Jul-Aug;28(4):1221-5; discussion 1225-6

Department of Diagnostic Radiology, Kingston General Hospital, Queen's University, 76 Stuart St, Kingston, ON, Canada K7L 2V7.

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http://dx.doi.org/10.1148/rg.284075184DOI Listing
October 2008
11 Reads

Prenatal sonographic findings of congenital adrenal cortical adenoma.

J Ultrasound Med 2008 Jul;27(7):1091-3

Divisions of Maternal-Fetal Medicine, State University of New York, Downstate Medical Center, Brooklyn, New York 11203-2098, USA.

The differential diagnosis of prenatally diagnosed adrenal masses includes neuroblastoma, adrenal hemorrhage, adrenal and cortical renal cysts, adrenal adenoma and carcinoma, subdiaphragmatic pulmonary sequestration, Beckwith-Wiedemann syndrome, duplication of the renal system, Wilms tumors, congenital mesoblastic nephroma, and mesenteric and enteric duplication cysts. The worldwide annual incidence of childhood adrenal cortical neoplasms ranges between 0.3 and 0. Read More

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July 2008
9 Reads

Congenital mesoblastic nephroma rich from mitosis after in vitro fertilization: a case report.

J Pediatr Surg 2008 May;43(5):E27-9

Department of Pediatric Surgery, Faculty of Medicine, Baskent University, 06490 Bahçelievler, Ankara, Turkey.

Recently, various childhood tumors such as leukemia, neuroblastoma, hepatoblastoma, retinoblastoma, and central nervous system tumors in patients born after assisted conception have been reported. Although involvement of in vitro fertilization in the tumor pathogenesis was not established, the likely effect of assisted reproductive technology has been increasingly considered in these tumors in the last decade. Congenital mesoblastic nephroma is the most common renal tumor of infancy younger than 6 months associated with an overall good prognosis. Read More

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http://dx.doi.org/10.1016/j.jpedsurg.2008.01.008DOI Listing
May 2008
4 Reads

Part II: Treatment of primary malignant non-Wilms' renal tumours in children.

Lancet Oncol 2007 Sep;8(9):842-8

Institute of Urology and Nephrology, University College London Hospitals NHS Foundation Trust, London, UK.

Renal-cell carcinoma, clear-cell sarcoma, (congenital) mesoblastic nephroma, rhabdoid tumour, and renal medullary carcinoma form a heterogeneous group of childhood renal malignancies known as non-Wilms' tumours. Progress has been slow in improving the management of these tumours to decrease morbidity and increase survival. However, greater cooperation between national and international centres should engender specialisation, and an increased knowledge of the molecular biology of these tumours will inevitably lead to substantial progress over the next decade. Read More

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http://dx.doi.org/10.1016/S1470-2045(07)70276-0DOI Listing
September 2007
9 Reads