Primary Embryonal Rhabdomyosarcoma of the Breast: A Case Report and Literature Review

This case illustrates the need for early biopsy of rapidly enlarging breast masses in adolescents, the central diagnostic role of muscle-specific immunohistochemical markers, and the importance of uninterrupted multimodal therapy in primary breast ERMS. It also underscores the limitations of currently available regimens in refractory disease and highlights the need for collaborative, guideline-based management, and clinical-trial enrollment when feasible.