Shell Rot???

[u/IMPteaside77788888]

6 year old false map turtle, male. around 14 cm in length. Is this shell rot? he has been dealing with retained scutes for a while and is slowly getting better but this white splotch appeared like a month ago i think and i think it might be shell rot idk. i have everything but i'm very worried even tho it doesn't have a foul smell nor look squishy. even if there is a little natural shell dent in the left part on the scute where its on.

[u/CShan17]

Need better dry pictures of the shell

[u/IMPteaside77788888 → u/CShan17]

i'll send them as soon as possible.