Incremental Role of ¹⁸FDG PET/CT in Assessment of Testicular Viability / 대한핵의학회잡지

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

Diagnostic Value of Color Doppler Ultrasonography and Testicular Scintigraphy in Acute Scrotum / 대한비뇨기과학회지

Color Doppler ultrasonography and testicular scintigraphy were used to evaluate 43 patients with acute scrotal pain. Color Doppler ultrasonography predicted properly the need of surgery in 5 of 6 patients with testicular torsion but testicular scintigraphy correctly diagnosed all 11 patients with testicular torsion. Color Doppler ultrasonography demonstrated increased epididymal or testicular flow in all 27 patients with acute epididymitis and testicular scintigraphy showed increased uptake in all 7 patients with acute epididymitis. But Color Doppler ultrasonography misdiagnosed 1 patient with testicular torsion as acute epididymitis and testicular scintigraphy misdiagnosed 1 patient with pyocele as testicular torsion. The authors found that the sensitivity and the specificity of color Doppler ultrasonography were 83% and 100% and the sensitivity and the specificity of testicular scintigraphy were 100 % and 89% in the diagnosis of testicular torsion. Color Doppler ultrasonography is as effective as testicular scintigraphy and it is an accurate and rapid diagnostic method in assessing perfusion and anatomy of the acute scrotal lesions.