thoracoscope

noun

tho·​ra·​co·​scope thə-ˈrāk-ə-ˌskōp  -ˈrak- 

: an endoscope that is inserted through a puncture in the chest wall in an intercostal space (as for the visual examination of the chest cavity)

thoracoscopic

thə-ˌrāk-ə-ˈskäp-ik  -ˌrak- 

adjective