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Thursday, July 28, 2005
A 39-year-old woman with a history of stage 3A Hodgkin's lymphoma, nodular sclerosing type, treated with high-dose chemotherapy and stem cell transplant, was referred for FDG-PET imaging prior to radiation therapy. A CT scan (not shown) performed about 1 week before the FDG-PET study revealed a confluent soft tissue density, measuring approximately 5 cm x 3 cm, in the anterior mediastinum, but was otherwise unremarkable. The patient underwent 2 PET scans, A and B. PET scan B was performed 5 days after A.
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PET scan B was performed after pretreating the patient with which one of the following?
A
Benzodiazepines
B
Phenothiazines
C
Antihistamines
D
Salicylates
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Explanation
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