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|
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| Hypoplasia
and Dysplasia Account for 50% |
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| of
Abdominal Masses of the Newborn |
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| (Prevalence 0.5% of all Pregnancies) |
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|
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| Both Hypoplasia
and Dysplasia are associated with urologic abnormalities, |
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| but the cause and
effect is not clear: |
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| 1. | Uretero-pelvic
junction UPJ obstruction. |
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| 2. | Uretero-vesicular
junction UVJ obstruction. |
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| 3. | Mega-ureter. |
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