Study of genotype/phenotype relationships involving the Wilms' tumor (WT) gene, WTI, in WT patients has provided insights into the function of the WT1 protein, a transcriptional regulator, and has suggested possible mutational mechanisms important in theetiologyof WT. For example, the identification
Clinical phenotypes and Wilms tumor
โ Scribed by Clericuzio, Carol L.
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 595 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0098-1532
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โฆ Synopsis
Abstract
Wilms tumor can occur in association with a number of recognizable patterns of malformation, as first described by Miller et al. in 1964 [1]. This paper represents a synthesis of the current state of knowledge regarding recognizable phenotypes associated with Wilms tumor. Specific disorders discussed include the BeckwithโWiedemann syndrome, which has been localized to 11p15.5; isolated hemihypertrophy; sporadic aniridia, which is almost always associated with del(11p13); genital anomalies, particularly male pseudohermaphroditism and the DenysโDrash syndrome; and more weakly associated or uncommon conditions, such as neurofibromatosis and Perlman syndrome, respectively. Wilms tumor (WT) surveillance for specific high risk phenotypes should include a rational schedule of abdominal ultrasound examinations, taking into account the epidemiology of WT associated with specific disorders. Physical examination, with emphasis on abdominal palpation, and urinalysis should also be performed on a rational schedule. The schedule of examinations needs to be arrived at with input from clinical geneticists, oncologists, epidemiologists and pathologists with WT expertise. Lastly, careโtakers of high risk individuals should be taught abdominal palpation, to be performed daily at home. ยฉ 1993 WileyโLiss, Inc.
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## Abstract The epidemiological and clinical features of Wllms' tumor (WT) were analyzed in 176 patients admitted to the Brazilian WT Study Group. The occurrence of congenital anomalies (9.1%) and the M:F ratio (0.83) were comparable to those observed by the US National WT Study and the Internation