On a Friday night, a 22 year old male presents with hemoptysis, hypertension, hematuria, RBC casts and mild edema and proteinuria. Immunofluorescence using anti-IgG antibodies is displayed. What is the pathogenesis of this condition?
Read DetailsA patient receives a deceased donor kidney transplant. One year later, the patient presents with increasing serum creatinine. A renal transplant biopsy is performed and reveals infiltrating lymphocytes within the interstitium and also invading the tubules (‘tubulitis”). Which of the following is the most likely diagnosis?
Read DetailsA child presents with a palpable abdominal mass. A nephrectomy is performed. elevated. A representative light microscopic image is shown. Assuming this solid mass involves the kidney and is neoplastic, what is the most likely diagnosis?
Read DetailsA 56-year-old man comes to the emergency department with a 4-day history of colicky right flank pain that radiates to the groin and hematuria. Ultrasound examination of the kidneys shows right-sided hydronephrosis and a dilated ureter. Which of the following is most likely to be found on urinalysis?
Read DetailsA 54 year old man suffers an acute myocardial infarction and is admitted to the hospital. He has severe hypotension and requires pressors (IV catecholamines) to support his blood pressure. Two days later the following labs are obtained as his urine output has declined. What is the most likely cause of the patient’s elevation in serum creatinine level given the information provided?
Read DetailsAn elderly woman patient is post-op from having a subdural hematoma surgically evaluated. On post-op day 1 her urine output declines and she becomes lethargic and obtunded. Laboratory testing is performed. What is the most likely diagnosis?
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