The glomus tumor invasion of jugular bulb is diagnosed by: (A) Carotid angiography, (B) Veebral venousvenography, (C) X-ray, (D) Jugular venography
Answer is D. MRI - gives soft tissue extent of tumor; Magnetic Resonance Angiography (MRA) shows compression of the carotid aery whereas magnetic resonance venography shows invasion of jugular bulb by the tumor.