  This short note considerably simplifies a reconstruction method by the author
(Comm. PDE, 45(9):1118--1133, 2020), for reconstructing piecewise constant
layered conductivities (PCLC) from partial boundary measurements in electrical
impedance tomography. Theory from monotonicity-based reconstruction of extreme
inclusions eliminates most of the bookkeeping related to multiple components of
each layer, and also simplifies the involved test operators. Moreover, the
method no longer requires a priori lower and upper bounds to the unknown
conductivity values.
