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KEY FACTS
Terminology
Imaging
Pathology
Clinical Issues
TERMINOLOGY
Definitions
- Common arterial vessel arising from heart, giving rise to aorta, pulmonary arteries (PAs), & coronaries
- Classic radiographic appearance: Cardiomegaly, ↑ pulmonary vascularity, narrow mediastinum, right aortic arch
- Truncus arteriosus is heart lesion most commonly associated with right aortic arch (30-40%)
- Category: Cyanotic, cardiomegaly, ↑ pulmonary vascularity
- Hemodynamics
- Both ventricles are connected to pulmonary & systemic circulation
- Flow admixture across ventricular septal defect (VSD) & within truncus → cyanosis
- Postnatal drop in pulmonary vascular resistance → relative ↑ in pulmonary blood flow → volume overload of pulmonary circulation
- Frequently associated with absent thymus & parathyroid glands: DiGeorge syndrome
IMAGING
General Features
Radiographic Findings
CT Findings
MR Findings
Echocardiographic Findings
Angiographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Staging, Grading, & Classification
Gross Pathologic & Surgical Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
Selected References
- Ly R et al: Multimodality imaging before persistent truncus arteriosus repair in a 36-year-old woman. Eur Heart J Case Rep. 4(6):1-2, 2020
- Sinha M et al: Type A3 truncus arteriosus with infracardiac total anomalous pulmonary venous return and single ventricle physiology: a triad of tribulations. J Cardiovasc Comput Tomogr. 14(6):e137-8, 2020
- Chikkabyrappa S et al: Common arterial trunk: physiology, imaging, and management. Semin Cardiothorac Vasc Anesth. 23(2):225-36, 2019
- Fujiwara K et al: Truncus arteriosus with major aortopulmonary collateral arteries. Ann Thorac Surg. 108(2):e105-6, 2019
- Sharma A et al: Atypical variant of truncus arteriosus: sinusal origin of pulmonary artery segment with non-confluent branch pulmonary arteries. BMJ Case Rep. 12(4), 2019
- Naimo PS et al: Impact of truncal valve surgery on the outcomes of the truncus arteriosus repair. Eur J Cardiothorac Surg. 54(3):524-31, 2018
- Greenhouse DG et al: Truncus arteriosus versus tetralogy of Fallot with pulmonary atresia. Cardiol Young. 27(4):801-3, 2017
- Karakulak UN et al: Multimodality imaging of major aortapulmonary collateral arteries in type IV truncus arteriosus. Acta Cardiol. 70(3):361-2, 2015
- Koplay M et al: Truncus arteriosus: diagnosis with dual-source computed tomography angiography and low radiation dose. World J Radiol. 6(11):886-9, 2014
- Altun G et al: Crossed pulmonary arteries associated with persistent truncus arteriosus and right aortic arch on the three-dimensional computed tomographic imaging. Anadolu Kardiyol Derg. 13(5):E29, 2013
- O'Byrne ML et al: Morbidity in children and adolescents after surgical correction of truncus arteriosus communis. Am Heart J. 166(3):512-8, 2013
- Fogel MA et al: Cardiac magnetic resonance of the common arterial trunk and transposition of the great arteries. Cardiol Young. 22(6):677-86, 2012
- Diab K et al: Left hemitruncus associated with tetralogy of fallot: fetal diagnosis and postnatal echocardiographic and cardiac computed tomographic confirmation. Pediatr Cardiol. 31(4):534-7, 2010
- Frank L et al: Cardiovascular MR imaging of conotruncal anomalies. Radiographics. 30(4):1069-94, 2010
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Pathology
Clinical Issues
TERMINOLOGY
Definitions
- Common arterial vessel arising from heart, giving rise to aorta, pulmonary arteries (PAs), & coronaries
- Classic radiographic appearance: Cardiomegaly, ↑ pulmonary vascularity, narrow mediastinum, right aortic arch
- Truncus arteriosus is heart lesion most commonly associated with right aortic arch (30-40%)
- Category: Cyanotic, cardiomegaly, ↑ pulmonary vascularity
- Hemodynamics
- Both ventricles are connected to pulmonary & systemic circulation
- Flow admixture across ventricular septal defect (VSD) & within truncus → cyanosis
- Postnatal drop in pulmonary vascular resistance → relative ↑ in pulmonary blood flow → volume overload of pulmonary circulation
- Frequently associated with absent thymus & parathyroid glands: DiGeorge syndrome
IMAGING
General Features
Radiographic Findings
CT Findings
MR Findings
Echocardiographic Findings
Angiographic Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Staging, Grading, & Classification
Gross Pathologic & Surgical Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
Selected References
- Ly R et al: Multimodality imaging before persistent truncus arteriosus repair in a 36-year-old woman. Eur Heart J Case Rep. 4(6):1-2, 2020
- Sinha M et al: Type A3 truncus arteriosus with infracardiac total anomalous pulmonary venous return and single ventricle physiology: a triad of tribulations. J Cardiovasc Comput Tomogr. 14(6):e137-8, 2020
- Chikkabyrappa S et al: Common arterial trunk: physiology, imaging, and management. Semin Cardiothorac Vasc Anesth. 23(2):225-36, 2019
- Fujiwara K et al: Truncus arteriosus with major aortopulmonary collateral arteries. Ann Thorac Surg. 108(2):e105-6, 2019
- Sharma A et al: Atypical variant of truncus arteriosus: sinusal origin of pulmonary artery segment with non-confluent branch pulmonary arteries. BMJ Case Rep. 12(4), 2019
- Naimo PS et al: Impact of truncal valve surgery on the outcomes of the truncus arteriosus repair. Eur J Cardiothorac Surg. 54(3):524-31, 2018
- Greenhouse DG et al: Truncus arteriosus versus tetralogy of Fallot with pulmonary atresia. Cardiol Young. 27(4):801-3, 2017
- Karakulak UN et al: Multimodality imaging of major aortapulmonary collateral arteries in type IV truncus arteriosus. Acta Cardiol. 70(3):361-2, 2015
- Koplay M et al: Truncus arteriosus: diagnosis with dual-source computed tomography angiography and low radiation dose. World J Radiol. 6(11):886-9, 2014
- Altun G et al: Crossed pulmonary arteries associated with persistent truncus arteriosus and right aortic arch on the three-dimensional computed tomographic imaging. Anadolu Kardiyol Derg. 13(5):E29, 2013
- O'Byrne ML et al: Morbidity in children and adolescents after surgical correction of truncus arteriosus communis. Am Heart J. 166(3):512-8, 2013
- Fogel MA et al: Cardiac magnetic resonance of the common arterial trunk and transposition of the great arteries. Cardiol Young. 22(6):677-86, 2012
- Diab K et al: Left hemitruncus associated with tetralogy of fallot: fetal diagnosis and postnatal echocardiographic and cardiac computed tomographic confirmation. Pediatr Cardiol. 31(4):534-7, 2010
- Frank L et al: Cardiovascular MR imaging of conotruncal anomalies. Radiographics. 30(4):1069-94, 2010
