Parasite actress Park So-Dam is recovering from surgery that she underwent for treating her papillary thyroid cancer, according to PEOPLE.

On Monday, Park’s ArtistCompany representative told CNN that the 30-year-old was diagnosed with the thyroid condition during a recent health check, halting plans to promote her new movie Special Delivery.

The rep also said that Park was “very disappointed” to miss out on the press tour.

The agency said, “The company would like to once again thank all the people for showing support for Special Delivery and actress Park So-Dam, as well as the actors and crew of Special Delivery overcoming this difficult time together.”

“Actor Park So-Dam will focus on her recovery so that she can see you all healthy in the future, and ArtistCompany will also do our best to help the actor recover her health,” they added.

Papillary thyroid carcinoma is the most common type of cancer that affects your thyroid, according to WebMD. It is only about as big as a quarter, but the hormones it makes help control how your body works, including your blood pressure, heart rate, and temperature.

Several types of thyroid cancer exist, according to Mayo Clinic. Some grow very slowly and others can be very aggressive. Most cases of thyroid cancer can be cured with treatment.

Apart from Parasite, Park has appeared in a number of South Korean movies, including Steel Cold Winter, Beautiful Mind, The Priests, Ode to the Goose, and Cinderella and the Four Knights.

Park gained an international following after her key role in Parasite, bagging the Academy Awards with four wins. The film, released in 2019, claimed the rare feat of winning the Palme d’Or at Cannes and the Oscar for best picture at the 92nd Academy Award.