Which Patnaik grade has the 93% survival at 1500 days versus 6% for the worst grade?

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Study for the ACVIM Small Animal Internal Medicine Exam to enhance your veterinary knowledge. Prepare with flashcards and multiple-choice questions, featuring hints and explanations. Ensure success in your exam journey!

Multiple Choice

Which Patnaik grade has the 93% survival at 1500 days versus 6% for the worst grade?

Explanation:
Patnaik grading reflects how differentiated or aggressive a tumor is, and prognosis gets worse as differentiation decreases. The best-differentiated tumors have the most favorable long-term survival, while the poorly differentiated ones have the poorest outcomes. In this scenario, the high survival figure (93% at 1500 days) corresponds to the well-differentiated, less aggressive tumors, which is Grade I. The very low survival (6%) at the same time point belongs to the worst grade, which is Grade III. So the grade with the 93% survival is Grade I.

Patnaik grading reflects how differentiated or aggressive a tumor is, and prognosis gets worse as differentiation decreases. The best-differentiated tumors have the most favorable long-term survival, while the poorly differentiated ones have the poorest outcomes. In this scenario, the high survival figure (93% at 1500 days) corresponds to the well-differentiated, less aggressive tumors, which is Grade I. The very low survival (6%) at the same time point belongs to the worst grade, which is Grade III. So the grade with the 93% survival is Grade I.

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