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Am J Perinatol 1999; Volume 16(Number 9): 0463-0468
DOI: 10.1055/s-1999-6805
Copyright © 1999 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA. Tel: +1(212)760-0888 x132

Transient Hyperechogenicity of the Renal Medullary Pyramids: Incidence in the Healthy Term Newborn

Bassem Jeries Khoory, Ivo Andrea Bergamo Andreis, Lidia Vino, Vassilios Fanos
  • Departments of Pediatrics (IABA, LV) and Radiology (BJK, VF), University Hospital, Verona, Italy
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Publication History

Publication Date:
31 December 1999 (online)

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ABSTRACT

-A screening program was performed on 1881 clinically healthy term newborns, aimed at detecting eventual pathological conditions not diagnosed during pregnancy. Seventy-three cases of transient hyperechogenicity of the renal medullary pyramids were observed, involving one or both kidneys with either sectorial or diffuse pattern. None of the neonates examined had evidence of renal dysfunction and follow-up ultrasound scans demonstrated complete resolution of the sonographic picture. Medullary hyperechogenicity is not rare in healthy term newborns (3.9%); it presents rapid resolution and should be considered in differential diagnosis of pathological conditions.

KEYWORD

Hyperechogenicity - kidney - newborn

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