Monday, July 2, 2012

What is the DD of an abdominal mass in a neonate?

GU tract (70%)
- MCDK (most common single entity)
- hydronephrosis (PUV, urinary duplication and ectopia, UPJO)  hydro is the most common
- AR/AD PCKD overall entity
- RV thrombosis
- Wilms’ tumour
- congenital mesoblastic nephroma (most common renal tumour in neonate)
- distended bladder
non-GU tract (30%)
- neuroblastoma (most common extra-cranial tumour in kids)
- teratoma
- GI duplication
- adrenal hemorrhage
- hydrometrocolpos
- ovarian cysts
- giant cystic meconium ileus



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