  The size estimation problem in electrical impedance tomography is considered
when the conductivity is a complex number and the body is two-dimensional.
Upper and lower bounds on the volume fraction of the unknown inclusion embedded
in the body are derived in terms of two pairs of voltage and current data
measured on the boundary of the body. These bounds are derived using the
translation method. We also provide numerical examples to show that these
bounds are quite tight and stable under measurement noise.
