deleted photos reappear when i update phone

[AC Question]

i have a HTC One (M8) running 4.4.2.

whenever i update my phone with new music i have loaded into itunes (via iSyncr) it puts back photos i have previously deleted from the phone. despite clicking on the 'delete everywhere' option each time they keep reappearing.

anyone have any ideas to stop this happening please?

 

[B. Diddy]

Is it album art, or are they actually photos you took?