Document Detail

Enlarged fetal bladder: Differential diagnosis and outcomes.
MedLine Citation:
PMID:  12811794     Owner:  NLM     Status:  MEDLINE    
The sonographic finding of an enlarged fetal bladder may simply be a transitory normal variant, but it may also be secondary to reflux or to obstructive, neurogenic, or myopathic causes. In this report, we describe the cases of 3 fetuses with an enlarged bladder, each of which had a different cause. The first fetus had posterior urethral valve obstruction, the second, a ruptured neurogenic bladder, and the third, megacystic-microcolon-intestinal hypoperistalsis syndrome. When sonographic examination reveals an enlarged fetal bladder, the ureter, kidneys, genitalia, and spine should be evaluated carefully. Although sonography is good at identifying urinary tract abnormalities, it often cannot provide the specific diagnosis or cause. We recommend frequent sonographic monitoring to evaluate such fetuses for persistence of or changes in bladder enlargement and for changes in the volume of amniotic fluid because these signs may be indicators of abnormalities of renal function and risk factors for a poor prognosis. Analysis of fetal electrolyte levels can also aid in determining the prognosis and whether the condition is amenable to therapeutic intervention.
Michael G Pinette; Jacquelyn Blackstone; Joseph R Wax; Angelina Cartin
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of clinical ultrasound : JCU     Volume:  31     ISSN:  0091-2751     ISO Abbreviation:  J Clin Ultrasound     Publication Date:    2003 Jul-Aug
Date Detail:
Created Date:  2003-06-17     Completed Date:  2003-11-10     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0401663     Medline TA:  J Clin Ultrasound     Country:  United States    
Other Details:
Languages:  eng     Pagination:  328-34     Citation Subset:  IM    
Copyright Information:
Copyright 2003 Wiley Periodicals, Inc. J Clin Ultrasound 31:328-334, 2003
Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Maine Medical Center, 887 Congress Street, Suite 200, Portland, Maine 04102, USA.
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MeSH Terms
Colon / abnormalities,  ultrasonography
Diagnosis, Differential
Fetal Diseases / therapy,  ultrasonography*
Hydronephrosis / ultrasonography
Intestines / abnormalities,  ultrasonography
Rupture, Spontaneous
Ultrasonography, Prenatal*
Urethral Obstruction / ultrasonography
Urinary Bladder / abnormalities,  ultrasonography*
Urinary Bladder, Neurogenic / ultrasonography

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