Yes - ascaris roundworms hatch and grow into larvae in the lungs. They travel to the intestines in phelm where they grow into adulthood and reproduce. The eggs travel in the blood to the lungs where they incubate and hatch. This is why ascaris roundworm infections will cause upper respitory problems that will come and go for no apparent reason.
This is also why it is so very important to spit out any phelm duruing a parasite cleanse - the lungs will clear themselves of eggs, larvae and toxins and you don't want to swallow that stuff back into your body.