Have intercostal tarlov cysts (they think) on the left t6-7 and right t7-8. could these cysts be causing the tight band around chest area by compressing nerves?

Yes of course: if that what you have these cysts also known as perineural they are dilations of the nerve root sheaths to formed abnormal sacs filled with cerebrospinal fluid CSF they can cause progressive painful radiculopathy nerve pain for more information you can watch Dr Frank Feigenbaum discuss Tarlov Cysts on youtube www.youtube.com/watch?v=Hzpnfmx3tw good luck thank you for using health tap

Perhaps but,: Tarlov Cysts are uncommon (unless one has disorders like Ehlers-Danlos syndrome) and present the vast majority of the time in the lumbosacral spine. Older series suggest these need to get relatively large in order to cause symptoms, although that report was a small series. Suggest you speak to the physician who ordered your imaging regarding the potential of these to be causing your symptoms.