  The behavior of charged and neutral pion masses in the presence of a static
uniform magnetic field is studied in the framework of the two-flavor
Nambu-Jona-Lasinio (NJL) model. Analytical calculations are carried out
employing the Ritus eigenfunction method. Numerical results are obtained for
definite model parameters, comparing the predictions of the model with present
lattice QCD (LQCD) results.
