Pediatric phyllodes tumors: A review of the National Cancer Data Base and adherence to NCCN guidelines for phyllodes tumor treatment

Phyllodes tumors are fibroepithelial breast lesions that are uncommon in women and rare among children. Due to scarcity, few large pediatric phyllodes tumor series exist. Current guidelines do not differentiate treatment recommendations between children and adults. We examined national guideline adherence for children and adults. We queried the NCDB (2004–2014) for female patients with phyllodes tumor histology, excluding patients with missing age or survival data. Patients were stratified by age (pediatric