[The echographic dimensions of the liver in the term newborn and its relation to anthropometric variables].

We decided to undergo a study looking for normal liver size in relation with other anthropometric measures. Fifty healthy, appropriate for gestational age term-babies, born at the Hospital de Ginecopediatría Número 48, Centro Médico Nacional del IMSS, León, Guanajuato, México, were examined by hepatic ultrasound. The vertical diameter was 6.0 +/- 0.75 cm, transverse 8.26 +/- 0.72 cm, AP 5.44 +/- 0.5 cm. The longitudinal cross section area was 16.21 +/- 2.5 cm2, and the transverse cross section area 22.53 +/- 3.4 cm2. We found most important correlation between vertical diameter and longitudinal cross section area with the anthropometric measures. The hepatic measures correlate better with the weight. Ultrasound provides a rapid, accurate and convenient method for study the liver size and morphology in the neonate.