Massive Pelvic Lymphadenopathy Due to Recurrent Non-Hodgkin Lymphoma Incidentally Revealed on a 99mTc-MDP Bone Scintigraphy.

A 58-year-old man underwent Tc-MDP bone scintigraphy to evaluate the cause of diffuse bone pain. The images did not identify the exact cause of his symptoms. However, a "light bulb"-shaped urinary bladder and diffused increased activity in the scrotal region and left thigh were noted, which suggest a mass effect in the pelvis. A CT scan of the pelvis revealed soft tissue compressing the urinary bladder. A diagnosis of recurrent lymphoma was made.