Temperature distribution along the Z = constant line through Tmax for cases 1 to 4. For case 1, 2 and 3, 4 this line was through Z = 0.087 and Z = 0.0889 respectively. Both temperature dependent and constant conductivity was used for the tumour models and the homogenous non-tumour models. Temperature dependent conductivity has the same effect on thermal lesion size as in the previous figure. Interestingly the tumour cases resulted in lower temperatures in this direction compared to the only fat cases.