[Neonatal splenic cyst].

The author found five splenic cysts during ultrasound newborn screening. The size of cysts were between 5 and 11 mm. One of them slowly arised from 7 to 11 mm during 9 months. The other four held spontaneously. There were no cyst in other abdominal organs. The author could observe the process of healing in two cases: the size of cysts did not altered but in the inside of the cysts seemed the echopoor structure of the spleen. Later the site of the cysts were not visible more. The author saw similar splenic cysts in a four and a five years old children. The first was more time investigated in his first year of life with ultrasound by the author and no cyst was visible in his spleen. The etiology is not known but the accumulation of cases in time and space refer to an infective origin.