Inclusion Criteria

Inclusion Criteria

- Males and females 18 years of age or older

- Subjects pre-scheduled for clinically-indicated PET scan

- Subjects with newly diagnosed or recurrent untreated disease (lymphoma) based on
abdominal and/or pelvic adenopathy or masses on CT within 6 months of PET scan
Exclusion Criteria

- Allergy to Lomotil (Diphenoxylate hydrochloride, Atropine sulfate)

- Subjects with one or more episodes of diarrhea within 24 hours prior to PET scan

- Women who are breast-feeding

- Subjects with a history of severe liver disease, jaundice, dehydration, or
narrow-angle glaucoma