Bun-50 Cr-5.0 UA-3+ blood 3+ protein dysmorphic RBCs noted
Spot protein/creatinine ratio- 5g/d
C3/C4- normal, FK506 level- 10
Renal transplant ultrasound- no gross abnormality
Given the worsening renal function, a transplant biopsy is immediately performed. The light microscopy and immunofluorescence appear below:
The answer and explanation will be posted on Monday June 21st
Michael Lattanzio DO
*RFN board questions are meant to help introduce concepts about nephrology related diseases and do not represent actual questions seen on the ABIM exam.