Patient presents with nausea/vomiting, tiredness, and oliguria. We keep him in for observation as we perform a differential diagnosis, a ddx. Blood is drawn from the patient. Excess protein is found in the blood, and hyperphosphatemia is detected. Patient begins to complain of hematuria. Kidney biopsy is performed. H&E stain is used. This is what we see: Question: What does the patient have? a) Renal Cell Carcinoma b) Polycystic Kidney Disease c) Maple Syrup Urine Disease d) Diabetic Nephropathy P.S.: You're free to use Google to look up any confusing medical terms. Good luck
Answer is renal cell carcinoma, aka kidney cancer. The white, cauliflower looking spot on the right of the stain is the neoplasm. A neoplasm is a tumor. Some neoplasms are benign, others are malignant, aka cancerous. As you can see in the stain, the tumor on the right side is invading healthy kidney tissue of the left side. Congrats @MetaMonkeyz and @Agardino
