Fig. 3From: PET/CT vs CECT in assessment of therapeutic response in lymphomaA 25-year-old patient with large B cell lymphoma. a, b His initial study revealed a large ill-defined hypermetabolic right para-pharyngeal soft tissue mass lesion noted to be measuring about 5.7 × 7 × 7.5 cm achieving SUV max ~ 11.1. c, d His interment study revealed regressive course as regards the size of the previously reported soft tissue mass lesion roughly measuring about 2.5 × 2.5 × 5 cm; the mass is non-FDG avid with total metabolic response. This case showed partial regression by CT and total regression by PET/CTBack to article page