Maisy Geyer is a sweet, courageous, and wonderfully sassy 4-year-old from Havertown, PA, who is bravely battling B-cell acute lymphoblastic leukemia (B-ALL). Despite the immense challenges she faces, Maisy's bright smile, resilient spirit, and infectious personality continue to shine every single day, inspiring everyone who has the privilege of knowing her. She loves all things princesses, enjoys attending preschool at St. Dorothy’s, and is happiest when she’s spending time with her family, playing with her cousins, and making memories with her two siblings—a 6-year-old sister and a 2-year-old brother. B-ALL is a rare, fast-growing blood cancer in which the bone marrow produces too many immature, abnormal B-cell white blood cells that are unable to function properly. Last November, Maisy's parents, Erin and Michael, noticed a slight limp when she walked and a bump on her head that persisted for more than a month. While these symptoms may not have immediately pointed to cancer, they knew something wasn't right. Concerned, they took Maisy to her pediatrician, who ordered bloodwork and X-rays. After her bloodwork revealed low blood counts, Maisy was referred to Children's Hospital of Philadelphia (CHOP) for further evaluation. At CHOP, doctors conducted additional testing, including new X-rays that revealed an abnormality in her left leg consistent with cancer involvement. On December 7, 2025, Maisy was diagnosed with B-ALL. Since her diagnosis, Maisy has already endured numerous lumbar punctures, weekly chemotherapy treatments, and immunotherapy with Blina, administered through a continuous intravenous infusion. Because she has not responded well to several treatment protocols, her medical team has had to adjust her chemotherapy regimen multiple times. Approximately five treatment cycles into her journey, Maisy still faces a lengthy road ahead. Her treatment plan at CHOP is expected to continue for another two years and will include additional chemotherapy, lumbar punctures, and other unpredictable procedures. In these early stages of Maisy's cancer journey, the family has already experienced significant financial strain. They have incurred increased grocery expenses to ensure Maisy has access to foods she enjoys and can tolerate, helping her maintain her weight and strength throughout treatment. Something they never imagined worrying about was simply keeping enough food in the house for Maisy, her siblings, and themselves. In addition, frequent trips to and from CHOP have resulted in substantial transportation and fuel costs, creating even more stress during an already overwhelming time. As Maisy enters the delayed intensification phase of treatment in July, the family anticipates even greater challenges. Due to the intensity of the chemotherapy regimen, Erin will likely take more time away from work to care for her daughter. With young children at home and a new baby expected in July, the Geyers are facing tremendous emotional and financial hardship. These burdens will likely continue throughout Maisy's treatment and recovery. Any support provided to this family will help ease some of the pressure they are carrying and allow them to focus on what matters most— Maisy's health and recovery.