Nutcracker Syndrome and Right Renal Agenesis. A Rare Association

Authors

  • Sandalio Durán Álvarez Hospital Pediátrico Universitario William Soler
  • María Isabel Abijana Rodríguez Hospital Pediátrico Universitario William Soler
  • Andrea Carolina Peña Morales Hospital Pediátrico Universitario William Soler
  • Niurka Díaz Zayas Hospital Pediátrico Universitario William Soler

Keywords:

nutcracker syndrome, nutcracker phenomenon, orthostatic proteinuria, unilateral renal agenesis, single kidney.

Abstract

Introduction: Nutcracker syndrome is considered an infrequent and poorly thought out anomaly in medical practice; its incidence is not well established due to its varied symptomatology. Unilateral renal agenesis is estimated to be between 1/2500 and 1/4000 live births.

Objectives: To describe an 18-year-old female patient with suspected pre-natal imaging-confirmed right renal agenesis after birth, who was admitted due to proteinuria.

Case presentation: An 18-year-old female patient with known right renal agenesis, in whom a urine test detected proteinuria from the age of 13. In the study it was classified as orthostatic proteinuria and evolutionarily she referred mild and transient left low back pain. Renal ultrasound, performed to assess single kidney growth, showed dilation of the left renal vein. The ultrasound study was repeated to specify aorto-mesenteric angle and left renal vein dilation, and nutcracker syndrome was confirmed. 

Conclusions: The association between right renal agenesis and nutcracker syndrome is extremely rare, and, when it presents with orthostatic proteinuria and occasional low back pain, it should be followed expectantly, but surgical treatment is not needed in most cases.

 

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Author Biographies

Sandalio Durán Álvarez, Hospital Pediátrico Universitario William Soler

Profesor Consultante de Pediatría

María Isabel Abijana Rodríguez, Hospital Pediátrico Universitario William Soler

Especialista de Primer Grado en Pediatría, Máster en Atención Integral al Niño, Diplomada en Nefrología

Andrea Carolina Peña Morales, Hospital Pediátrico Universitario William Soler

Residente de Tercer Año de Pediatría

Niurka Díaz Zayas, Hospital Pediátrico Universitario William Soler

Especialista de Primer Grado en Radiología

Published

2023-08-07

How to Cite

1.
Durán Álvarez S, Abijana Rodríguez MI, Peña Morales AC, Díaz Zayas N. Nutcracker Syndrome and Right Renal Agenesis. A Rare Association. Rev Cubana Pediatría [Internet]. 2023 Aug. 7 [cited 2025 Aug. 2];95. Available from: https://revpediatria.sld.cu/index.php/ped/article/view/2164

Issue

Section

PEDIATRÍA