Panel discussion: glomus jugulare tumors of the temporal bone. Radiological appearance of glomus tumors

Jugulotympanic paragangliomas

Jugulotympanic paragangliomas are the most common tumors of the middle ear and temporal bone. Although these larger tumors can prove to be formidable, the advent of microscopic and skull base surgical techniques has greatly enhanced the ability to treat and manage these tumors.

The glomus tumor and its biology

This section has attempted to detail the histopathologic, biologic, pathophysiologic, and epidemiologic characteristics of jugulotympanic paragangliomas. These features do not stand devoid of clinical significance, but rather lay the foundation for the formulation of logical diagnostic and therapeutic approaches to these fascinating tumors.

Irresectable tumours of the temporal bone

Sporadic case reports and the few published series of expanding lesions of the deep petrous temporal bone propose a variety of surgical approaches to ensure excision. All such surgery represents a compromise between exposure adequate for total removal and avoidance of further neurological deficit. Unfortunately pathology in the petrous apex evolves relatively silently and diagnosis is delayed. In many cases total excision is impossible. We present a series of patients presenting with advanced tumours of the deep petrous temporal bone in order to illustrate the spectrum of disease encountered, the limited role of surgery and the natural history of irresectable pathology in this remote and inaccessible area.

High-resolution computed tomography of paragangliomas of the head and neck

High-resolution computed tomography with intravenous contrast enhancement is the initial procedure performed on individuals who present with signs and symptoms of a paraganglioma of the head and neck. Clinical information about these entities is reviewed and technical considerations are discussed.