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Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet

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[Horseshoe lung with normal pulmonary venous return].

A Gondra Sangroniz¹, J Elorz Lambarri, M A Villar Alvarez

¹Hospital de Basurto, Bilbao, España. ainhoa.gondrasangroniz@osakidetza.net

Anales De Pediatria (Barcelona, Spain : 2003)

|July 13, 2010

Summary

This case study presents a rare congenital anomaly, horseshoe lung, in a child without the typical abnormal venous drainage. This finding expands understanding of congenital lung malformations and their varied presentations.

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Area of Science:

Medical diagnostics
Pediatric pulmonology
Congenital anomalies

Background:

Horseshoe lung is a rare congenital anomaly involving a pulmonary parenchyma isthmus connecting lung bases behind the heart, often with unilateral pulmonary hypoplasia.
Approximately 80% of horseshoe lung cases are associated with scimitar syndrome, characterized by specific venous and arterial abnormalities.

Observation:

A six-year-old girl presented with recurrent lower respiratory infections.
Imaging revealed right lung hypoplasia, dextrocardia, and a bridging pulmonary isthmus, consistent with horseshoe lung.
The patient exhibited normal right pulmonary venous drainage, with systemic arterial supply to the hypoplastic right lung originating from the abdominal aorta.

Findings:

The presented case of horseshoe lung occurred without the commonly associated scimitar syndrome, specifically lacking abnormal pulmonary venous drainage.
This case highlights a variant presentation of horseshoe lung, differing from the typical 80% association with scimitar syndrome.

Implications:

This case broadens the spectrum of horseshoe lung presentations, emphasizing the importance of considering atypical forms.
Understanding these variations is crucial for accurate diagnosis and management of congenital lung anomalies in pediatric patients.
Further research into the genetic and developmental factors underlying these variations may improve diagnostic and therapeutic strategies.