To dream of a medical cadaver represents feelings about using failure to learn. Using total failure to learn how to stop it from happening again. Gaining experience about why failure occurred. Using others neglected losses to learn.
Cadavers may also reflect an expert attitude about investigating failures and losses.
Negatively, medical cadavers in a dream may reflect an insensitive attitude about others losses or failures. A cold or callous attitude about learning to be mitigate failure.