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Bilateral Sprengel Deformity
Joseph Junewick, MD FACR
over 7 years ago
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Tracheal Bronchus

Case Detail

Anatomy: Chest
Junewick
Joseph Junewick, MD FACR
Diagnostic Category: Genetic or Congenital
Created: over 7 years ago
Updated: over 7 years ago
Tags: PEDS
Modality/Study Types: CT 3D
Activities:
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History

Teenager with chest pain.


Case Images


Diagnosis

Anomalous Right Upper Lobe Bronchus

Clinical Notes

Left pneumothorax was diagnosed by chest radiography. CT requested to evaluate for subpleural bleb or other congenital anomaly of the lung.

Findings

CT – Coronal reformatted images demonstrate left pneumothorax and anomalous segmental bronchus arising from the trachea with bronchiectasis. Volume rendered virtual endoscopic CT image shows the origin of the anomalous bronchus proximal to the carina.

Discussion

Tracheal bronchus is an ectopic or accessory bronchus often arising from the right side of the trachea just proximal to the carina. It is a normal finding in pigs and is often referred to as a pig bronchus; it is unusual in humans (found in about 1%).

Tracheal bronchus can presentwith recurrent right upper lobe pneumonia and/or bronchiectasis but is often asymptomatic.

Tracheal bronchus can be associated with tracheal stenosis, tracheoesophageal fistula, single pulmonary artery and trisomy 21.



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