Male Pelvic Squamous Cell Carcinoma of Unknown Primary Origin

Figure 1

Contrast-enhanced CT scan of the pelvis demonstrates a 6.5 × 5.1 cm mass within the right pelvis (arrows), bordered by the right obturator internus, right seminal vesicles, and bladder diverticulum. The epicenter of the mass is centered at the internal iliac neurovascular bundle.

(a)

(b)