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The patient is a 42 y/o Southern Indian male who presents with longstanding, subnephrotic proteinuria, mild edema, and renal insufficiency. Pick the most likely diagnosis and further testing required for diagnosis. A. Fibronectin glomerulopathy, immunohistochemical staining for fibronectin B. Collagenofibrotic Glomerulopathy, electron microscopy of deposits C. Fibrillary Glomerulopathy, electron microscopy of deposits and routine immunofluorescence panel D. AL-type Renal Amyloidosis, Congo red stain, and IHC/IF for kappa and lambda E. Light Chain Deposition Disease, IHC/IF for kappa and lambda and electron microscopy of deposits Answer: B. Collagenofibrotic glomerulopathy is a rare renal disease secondary to the deposition of type...