Renal, Urology and Electrolytescommon
A 38-year-old woman has recurrent episodes of visible haematuria, but her renal function is normal and urine protein excretion is minimal. The episodes begin within 48 hours of sore throats and resolve spontaneously. Blood pressure is normal, serum C3 and C4 are normal, and there is no rash, arthritis or pulmonary symptom. Which diagnosis is most likely?