Trying to figure out where heart ends. Is it blue line or the red line? Sorry if this is not the right place to ask. Thanks in advance. Any idea what is the dark spot (yellow question mark?)

submitted by /u/benderrodrigue [link] [comments]

source https://www.reddit.com/r/Radiology/comments/kjkshw/trying_to_figure_out_where_heart_ends_is_it_blue/