Testicular torsion is a common differential diagnosis of acute scrotal pain along with acute epididymo-orchitis, which may lead totesticular non-viability. Doppler ultrasound and testicular scintigraphy are two routinely used modalities for the assessment oftesticular viability. However, in some cases, these investigations may prove inadequate in differentiating between the two entitieswith widely differing management. Here, we present a case of a 52-year-old male with questionable viability of testis, who wasinvestigated initially using testicular scintigraphy and was further subjected to a regional 18F-FDG PET/CT scan, in view ofinconclusive findings with the conventional modalities.