what kind of cancer did topanga have

Topanga Lawrence, played by Danielle Fishel, was diagnosed with ductal carcinoma in situ (DCIS), which is a very early stage of breast cancer, often referred to as stage 0 breast cancer. DCIS is a non-invasive form of breast cancer where cancer cells are confined to the milk ducts and have not spread to surrounding breast tissue. Danielle Fishel described her diagnosis as "high-grade DCIS with microinvasion," meaning the cancer cells were aggressive and had begun to breach the duct membrane slightly, which can classify it as stage 1. She underwent surgery to remove the cancer and has been undergoing follow-up treatment. This early detection gives a high chance of cure with proper treatment.