Carcinoma of the breast in women 30 years of age or less.
D000293:Adolescent; D000328:Adult; D001943:Breast Neoplasms / Q000453:epidemiology* / Q000235:genetics / Q000401:mortality / Q000473:pathology / Q000532:radiotherapy / Q000601:surgery / Q000628:therapy; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology; D008408:Mastectomy; D011247:Pregnancy; D011379:Prognosis