Magnetic　hyperthermia　ablates　malignant　cells　by　the　heat　produced　by　power　dissipation　of　magnetic　nanoparticles　(MNPs)　under　an　alternating　magnetic　field.　Most　of　the　works　in　literature　consider　a　uniform　magnetic　field　for　solving　numerical　models　to　estimate　the　temperature　field　during　a　hyperthermia　treatment,　however　this　assumption　is　generally　not　true　in　real　circumstances.　This　paper　considers　the　magnetic　field　produced　by　a　solenoid　and　analyzes　its　effects　on　the　treatment　temperature.　To　that　end,　a　set　of　partial　differential　equations　is　numerically　solved　for　a　specific　tumor　model　using　the　finite　element　method　and　the　obtained　results　are　analyzed　to　draw　general　conclusions.　The　magnetic　field　inside　the　solenoid　is　obtained　by　using　Maxwell＇s　theory,　and　the　treatment　temperature　of　the　tumor　model　is　determined　by　using　Rosensweig＇s　theory　and　Pennes　bio-heat　transfer　equation.　Simulation　results　demonstrate　that　the　temperature　field　obtained　using　a　solenoid　model　is　similar　to　that　obtained　considering　a　uniform　magnetic　field　if　tumor　is　centered　with　respect　to　solenoid　and　if　the　physical　characteristics　of　solenoid　are　properly　defined　based　on　tumor　volume.　As　the　distance　of　tumor　from　the　solenoid　center　is　increased,　the　effects　of　non-uniformity　of　magnetic　field　become　more　evident　and　the　adoption　of　the　proposed　model　is　necessary　to　obtain　accurate　results.　(C)　2017　Elsevier　B.V.　All　rights　reserved.