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Oncology and Hematology

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RECIST 1.1 Response Assessment

Calculate baseline, nadir, and current tumour burden and classify response as CR, PR, SD, or PD.

Enter lesion diameters in millimetres. Use the same target lesions at baseline, nadir, and current assessment. A maximum of 5 target lesions should be followed.

Target lesion diameters

Baseline lesions
Nadir lesions
Current lesions

Source / note: RECIST 1.1 response categories: Complete Response (CR), Partial Response (PR), Stable Disease (SD), and Progressive Disease (PD). PD requires either new lesions or at least 20% increase from nadir with an absolute increase of at least 5 mm.

Disclaimer: This calculator is intended for educational and clinical support purposes only. Final decisions must be made by qualified clinicians using full clinical, imaging, laboratory, pathological, and multidisciplinary assessment.

Note: MedicalC is NOT medical software and does NOT issue diagnoses or treatment recommendations. The calculators are for educational and informational purposes, use published medical formulas, and are not a substitute for medical consultation. Results should be interpreted by professionals.Read the full disclaimer.