A 52-year-old woman is being treated by her primary care doctor for a chronic illness.At this year’s annual checkup, her BUN and creatinine are significantly elevated and she has 3 proteinuria on...

A 52-year-old woman is being treated by her primary care doctor for a chronic illness.At this year’s annual checkup, her BUN and creatinine are significantly elevated and she has 3 proteinuria on urine dipstick.A renal biopsy reveals Congo red staining and apple green birefringence under polarized light. Which chronic disease does this patient have?

A. Lesch-Nyhan syndrome (a syndrome of hyperuricemia)

B. Diabetes mellitus, type 2

C. Diabetes insipidus

D. Systemic lupus erythematosus

E. Amyloidosis