Postby menreeq » Tue Mar 05, 2019 3:05 am
Generally, a 7-8 mm lesion on CT can be detected on PET. Smaller lesions that are very hypermetabolic can sometimes be seen. But if a lesion is smaller than 8 mm, and it is negative on PET, you can’t be sure that it is truly negative because it may be too small.
Sometimes a person will need all modalities. Each has its advantages and limitations.
Stage IIA rectosigmoid CC (T3N0M0)
Dx 6/5/17 @age 41ls
Workup: c-scope, EUS, rectal MRI, CT C/A/P
AdenoCA 5.5cm, WHO Grade 2, 0/22 LN, no distant mets
CEA 1.9 (6/5/17), 0.8 (2/28/18), 1.0 (9/17/18), 1.1 (4/16/19), 1.0 (9/24/19), 1.7 (7/8/20)
No lymphovasc/perineural invasion, clear margins
MSI intact, OncotypeDx RS 7
Lap sig colectomy 6/23/17, no ileo/colostomy
Genetics neg for mutations, 4 VUS
Xeloda monotherapy 8/13/17-1/22/18
PET/CT 3/21/18 NED
CT C/A/P 9/17/18 NED, 3/8/19 NED, 9/19/19 NED, 5/13/20 NED