Multimodal Imaging for the Diagnosis of Accessory Mitral Valve Tissue

Christian Byskov Nielsen; Bjarne Linde Nørgaard; Jesper Møller Jensen; Steen Hvitfeldt Poulsen; Morten Steen Kvistholm Jensen; Mariann Tang; Brian Bridal Løgstrup

doi:10.7326/AIMCC.2023.0738

Multimodal Imaging for the Diagnosis of Accessory Mitral Valve Tissue

Christian Byskov Nielsen^*, Bjarne Linde Nørgaard, Jesper Møller Jensen, Steen Hvitfeldt Poulsen, Morten Steen Kvistholm Jensen, Mariann Tang, Brian Bridal Løgstrup

^*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review

Abstract

Accessory mitral valve tissue (AMVT) is a rare congenital cardiac anomaly often diagnosed in childhood and is associated with left ventricular outflow tract obstruction. We present a case of an asymptomatic adult man in his 60s with an incidental finding of AMVT. A transthoracic echocardiography and transesophageal echocardiography initially raised suspicion of AMVT, but the precise origin of the anomaly was established using a dynamic 4-dimensional cardiac computed tomography scan, ultimately confirming the diagnosis. This case highlights the potential value of multimodality imaging in the diagnosis of AMVT and rules out other differential diagnoses.

Originalsprog	Engelsk
Artikelnummer	e230738
Tidsskrift	Annals of Internal Medicine Clinical Cases
Vol/bind	3
Nummer	5
DOI	https://doi.org/10.7326/AIMCC.2023.0738
Status	Udgivet - maj 2024

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10.7326/AIMCC.2023.0738Licens: CC BY-NC-ND

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title = "Multimodal Imaging for the Diagnosis of Accessory Mitral Valve Tissue",

abstract = "Accessory mitral valve tissue (AMVT) is a rare congenital cardiac anomaly often diagnosed in childhood and is associated with left ventricular outflow tract obstruction. We present a case of an asymptomatic adult man in his 60s with an incidental finding of AMVT. A transthoracic echocardiography and transesophageal echocardiography initially raised suspicion of AMVT, but the precise origin of the anomaly was established using a dynamic 4-dimensional cardiac computed tomography scan, ultimately confirming the diagnosis. This case highlights the potential value of multimodality imaging in the diagnosis of AMVT and rules out other differential diagnoses.",

keywords = "Accessory mitral valve tissue, Aortic regurgitation, Aortic valve, Atrial fibrillation, Cardiac computed tomography, Cardiac magnetic resonance, Cardiac surgery, Computed axial tomography, Congenital heart disease, Diagnostic techniques, Direct oral anticoagulant, Echocardiography, Left ventricular outflow tract, Transesophageal echocardiography, Transthoracic echocardiography",

author = "Nielsen, {Christian Byskov} and N{\o}rgaard, {Bjarne Linde} and Jensen, {Jesper M{\o}ller} and Poulsen, {Steen Hvitfeldt} and Jensen, {Morten Steen Kvistholm} and Mariann Tang and L{\o}gstrup, {Brian Bridal}",

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AU - Nielsen, Christian Byskov

AU - Nørgaard, Bjarne Linde

AU - Jensen, Jesper Møller

AU - Poulsen, Steen Hvitfeldt

AU - Jensen, Morten Steen Kvistholm

AU - Tang, Mariann

AU - Løgstrup, Brian Bridal

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N2 - Accessory mitral valve tissue (AMVT) is a rare congenital cardiac anomaly often diagnosed in childhood and is associated with left ventricular outflow tract obstruction. We present a case of an asymptomatic adult man in his 60s with an incidental finding of AMVT. A transthoracic echocardiography and transesophageal echocardiography initially raised suspicion of AMVT, but the precise origin of the anomaly was established using a dynamic 4-dimensional cardiac computed tomography scan, ultimately confirming the diagnosis. This case highlights the potential value of multimodality imaging in the diagnosis of AMVT and rules out other differential diagnoses.

AB - Accessory mitral valve tissue (AMVT) is a rare congenital cardiac anomaly often diagnosed in childhood and is associated with left ventricular outflow tract obstruction. We present a case of an asymptomatic adult man in his 60s with an incidental finding of AMVT. A transthoracic echocardiography and transesophageal echocardiography initially raised suspicion of AMVT, but the precise origin of the anomaly was established using a dynamic 4-dimensional cardiac computed tomography scan, ultimately confirming the diagnosis. This case highlights the potential value of multimodality imaging in the diagnosis of AMVT and rules out other differential diagnoses.

KW - Accessory mitral valve tissue

KW - Aortic regurgitation

KW - Aortic valve

KW - Atrial fibrillation

KW - Cardiac computed tomography

KW - Cardiac magnetic resonance

KW - Cardiac surgery

KW - Computed axial tomography

KW - Congenital heart disease

KW - Diagnostic techniques

KW - Direct oral anticoagulant

KW - Echocardiography

KW - Left ventricular outflow tract

KW - Transesophageal echocardiography

KW - Transthoracic echocardiography

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DO - 10.7326/AIMCC.2023.0738

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SN - 2767-7664

VL - 3

JO - Annals of Internal Medicine Clinical Cases

JF - Annals of Internal Medicine Clinical Cases

IS - 5

M1 - e230738

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Multimodal Imaging for the Diagnosis of Accessory Mitral Valve Tissue

Abstract

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