Mets Day 1078: More CT analysis shows 50% tumor shrinkage

Last night Hopkins posted another analysis of my CT scan. The clinical trial team apparently wanted to measure as precisely as possible the sizes of the two target tumors. I'm not sure I understand how the math is done, but the bottom line conclusion is that these two tumors have shrunk by 50% after three rounds of Opdivo.

Here's the language of the supplemental analysis:
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Exam 1: CHZ 8080 - CT SUPPLEMENTAL READ R0 - Mar 24, 2015 13:47

RESULT: This report is dictated with specific measurement of index
lesions as RECIST 1.1. Please see the original clinical report of the CT
scan of the neck from 3/24/2015.

COMPARISON: 2/10/2015.
RECIST 1.1:
Longest unidimensional measurement in mm for non-nodal disease.
Short axis measurements for nodes.

TARGET LESIONS:
TL1: Left level 5 lymph node measures 9 x 12 mm at slice position 208
compared to 16 x 18 mm previously.

TL2: Left level 4 lymph node measures 7 x 9 mm at slice position 256
compared to 16 x 20 mm previously.

NON-TARGET LESIONS:
None

NEW LESIONS:
None.

IMPRESSION: Decrease in SOD from 32 mm at baseline to 16 mm.
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This is amazing news. I am humbled and filled with gratitude. I am grateful to God, and all those who continue to show faith on my behalf. Thank you.