CONCLUSIONS
In conclusion, AMVT is an important cardiac lesion that is usually
discovered incidentally. This case was presented because of its rarity
in childhood. We emphasize that AMVT should be kept in mind in the
differential diagnosis of LVOT obstruction, especially in adult patients
with chest pain, dyspnea, and systolic murmur. A comprehensive
evaluation is required to determine the need for surgical intervention.
Recently, 3D echocardiography has played a fundamental role in patients’
diagnosis, treatment, and follow-up. Congenital heart surgeons should be
aware of the clinical and pathological features of AMVT to avoid
overlooking them during surgery.