PMC8034780_01
Dual tracer positron emission tomography and computed tomography scan (18F-fluorodeoxyglucose positron emission tomography and computed tomography and 68Ga-DOTATATE positron emission tomography and computed tomography) showing both somatostatin receptor expressing and fluorodeoxyglucose avid hypodense liver lesions, largest in segment IVa and IVb measuring 6.6 x 5.0 cm with SUVmax (18F-fluorodeoxyglucose)-21.3 (panel A) and SUVmax (68Ga-DOTATATE)-33 (panel B)
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F1
The scans revealed both somatostatin receptor (SSTR) expressing and FDG-avid hypodense liver lesions, largest in segment IVa and IVb measuring 6.6 cm x 5.0 cm with SUVmax (FDG)-21.3 and SUVmax on 68Ga-DOTATATE PET/CT 33 with no other distant site of metastasis identified [Figure 1].
PMC8034780_02
Dual tracer positron emission tomography and computed tomography evaluation (18F-fluorodeoxyglucose and 68Ga-DOTATATE) demonstrates the progression of disease with fluorodeoxyglucose avid lesions of the lower third part of the esophagus (now measuring approximately 4.5 cm), multiple hypodense liver lesions (largest measuring 7.2 cm x 7 cm), multiple abdominal enlarged lymph nodes (largest perigastric lymph node measuring 4.1 cm x 2.9 cm) all showing more avidity on 18F fluorodeoxyglucose scan (panel A) compared to 68Ga-DOTATATE positron emission tomography and computed tomography (panel B)
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F2
All these lesions showed more avidity on the 18F-FDG scan compared to 68Ga-DOTATATE scan, which showed minimal uptake in the aforementioned lesions [Figure 2].