Abdominal Mass in a Neonate

Abdominal Mass in a Neonate:

A)Renal(form about 55%)

1-Hydronephrosis(25%)

2-Multicystic kidney(15%).

3-Infantile polycystic kidney.

4-Mesoblastic nephroma(benign hamartoma).

5-Renal vein thrombosis.

6-Wilms tumor.

B)Genital(about 15%)

1- Hydro-metrocolpos.

2-Ovarian cyst.

C)Gastro-intestinal(15%):commonly associated with obstruction.

1-Duplication:Commenest bowel mass in neonate.Commonly in the right lower quadrant.

2-Mesenteric cyst.

D)Non renal retroperitoneal(10%)

1-Adrenal hemorrhage

2-Neuroblastoma

3-Teratoma

E)Hepato-spleno-biliary

1-Hepatoblastoma

2-Hepatic cyst

3-Splenic hematoma

4-Choledochal cyst