[Prenatally diagnosed mesenchymal hamartoma of the liver].

Reported in this paper is the case of a female newborn with mesenchymal hamartoma of the liver. High-accuracy ultrasonography diagnostics were applied to the mother admitted for examination for suspicion of fetal hydronephrosis in the 31st week of pregnancy. A 7 x 4 cm compartmental process was delineable in the abdominal region of the foetus and was variably viewed in ultrasonography in cystic or solid form. A girl, 2,650 g in body weight and 47 cm in body length, was delivered by caesarean section in the 35th week of pregnancy. Postnatal nutritional disorders were accompanied with recurrent vomiting. Sonography, computed tomography and scintigraphy were performed, and the prenatally diagnosed process was identified as a cystic growth in the right liver lobe with enclosure of the V. cava inferior. A typical hepatolobectomy was performed on the newborn on her 15th day of age, with the V. cava enclosing part being left unextirpated. Mesenchymal hamartoma of the liver was the histological diagnosis. Only one prenatally diagnosed case of this kind had been known from literature before.