Rapidly Progressive IgA Nephropathy in a Patient With a History of Breast Cancer: A Case Report and Literature Review. - Montesinos, Roger Leon; Marca, Edwin Quispe; Torrico, Carla Arnez; Herbas, Daniel Segura; Limachi, Luis Céspedes; Arenas, Zulma Tapia; Mamani, Wilder Villca; Gurumallesh Prabu, Poorani (Case Reports in Nephrology, 2026)