A 18 year old obese male presents with severe edema. Urinary…
A 18 year old obese male presents with severe edema. Urinary protein is 8g/24 hr. A renal biopsy is performed. On light microscopy (LM), 20% of the glomeruli have the lesion illustrated in the image. Immunofluorescence (IF) showed some glomerular low intensity IgM staining but electron microscopy (EM) reveals no deposits. What is the best diagnosis?