January 2026 Research Update

This month, the clearest progress was in how imaging might better show whether a glomus jugulare tumor is involving the internal carotid artery, a key structure near the skull base. In 21 surgically confirmed cases, a contrast MRI sequence called BRAVO matched the surgeon's findings for overall tumor extent better than either standard contrast MRI (FSE) or CT. For the internal carotid artery itself, however, CT was more accurate than BRAVO at judging whether the tumor wrapped around the artery or narrowed it, though BRAVO was still more accurate than standard MRI. The overall message is that different scans may each add something, rather than one test fully replacing the others. [1]

In 21 patients, BRAVO imaging showed perfect agreement with what was seen during surgery for the Fisch C-type classification (a way surgeons describe how far the tumor extends in the temporal bone). For internal carotid artery encasement and narrowing, BRAVO agreed with the surgical findings more closely than standard contrast MRI (FSE) did, but less closely than CT. The authors concluded that BRAVO and CT provide complementary information for assessing the artery. This matters because clearer pre-surgery mapping can help teams anticipate technical difficulty and risks, even though the study did not test whether outcomes improved. [1]

For patients, this adds practical information about why the care team may order more than one kind of scan before deciding on surgery or other approaches. The evidence here is from a small group where surgery provided a strong reference point for comparison, so it may matter in care settings that use surgery and detailed preoperative imaging. What remains uncertain is whether using BRAVO changes long-term results or symptoms, since this study focused on how well scans matched what surgeons saw. [1]

This month also highlighted how glomus jugulare tumors can sometimes show up in unexpected ways. A single patient had mainly hypoglossal nerve (tongue movement) problems without the more typical nearby lower cranial nerve issues, and imaging pinpointed a tumor position that could explain this selective nerve involvement. The report also underscored that some of these tumors can be hormone-active, which can shape what tests are done and how follow-up is planned. [2]

In this case, MRI and CT showed a mass in the jugular foramen near the hypoglossal canal, with bone erosion and signs of a highly vascular tumor. Blood testing showed elevated metanephrines, supporting that the tumor was biochemically active, and a multidisciplinary team chose non-surgical management with planned radiotherapy and surveillance. The authors suggested the tongue weakness may have been due to external pressure on the nerve near the canal rather than the tumor growing into the canal. [2]

For patients and caregivers, this report mainly adds awareness that new or isolated tongue weakness can, in rare situations, be linked to a jugular paraganglioma, and that careful imaging can clarify which nerve is affected and why. It also shows that checking for hormone activity (using blood metanephrines) may be part of evaluation in some people, especially when symptoms like palpitations or sweating are present. Because this is a single case, it is best viewed as an example of what can happen and how evaluation may be organized, rather than a guide to what to expect for most patients. [2]