A study of the factors inducing the development of childhood-onset myasthenia gravis using CDR3 spectratyping analysis of the TCR repertoire.

Myasthenia gravis (MG) is an autoimmune disease. AChR-specific autologous helper T (Th) cells are essential to the pathogenesis of MG. Factors correlated with the development of childhood-onset MG are unknown.

Wolff-Parkinson-White (WPW) syndrome in isolated noncompaction of the ventricular myocardium (INVM).

Isolated noncompaction of the ventricular myocardium (INVM) is a rare morphological abnormality caused by cessation of the compaction of the loose interwoven meshwork of myocardial fibers during intrauterine life. Three cases of INVM, including 2 siblings, were diagnosed from 2-dimensional echocardiographic findings of Wolff-Parkinson-White syndrome type B to which INVM can be attributed.