Pop star Taylor Swift has for the first time revealed specifics of her mother Andrea's battle with cancer, in a new interview."While (my mom) was going through treatment (for breast cancer), they found a brain tumour. And the symptoms of what a person goes through when they have a brain tumour is nothing like what we have ever been through with her cancer before. So it is just been a really hard time for us as a family," Taylor said, opening up on the ordeal in an interview to Variety.Also Read:?Taylor Swift, Lizzo Ariana Grande and more nominated for 2020 iHeartRadio Music AwardsFans of the singer will get to know details about the 62-year-old Andrea's ailment, and how the entire family has struggled with the situation, in a new Netflix documentary film titled " Miss Americana ", reports hollywoodlife.com.The documentary film directed by Lana Wilson will trace the singer-songwriter's life and career.