What is the most likely diagnosis for a child with facial swelling, cola-colored urine, and a recent history of a sore throat?

The clinical presentation of facial swelling, cola-colored urine, and a recent history of a sore throat strongly suggests postinfectious glomerulonephritis. This condition often arises as a complication following infections, particularly after a streptococcal throat infection. The sore throat indicates a prior infection that can trigger an autoimmune response, leading to glomerular inflammation and subsequent symptoms.

Facial swelling, or edema, can develop as a result of increased fluid retention and altered kidney function, which is characteristic of glomerulonephritis. The cola-colored urine signifies the presence of blood (hematuria) and possibly protein (proteinuria) in the urine, typical of glomerular injury. This set of symptoms aligns closely with postinfectious glomerulonephritis, which commonly presents in children after certain infections.

IgA nephropathy, while it can present with hematuria, typically does not follow a recent sore throat and has a different clinical timeline and pattern. Alport syndrome involves hearing loss and progressive renal failure, which are not indicated in this case. Thin basement membrane disease can lead to hematuria as well, but again, the context of a recent sore throat and the acute nature of the presentation suggest postinfect