High-resolution CT in the evaluation of glomus tumors of the temporal bone.

Abstract

High-resolution computed tomography (HRCT) was performed in 33 cases of glomus tumors of the temporal bone and 10 cases of other tumors in and around the jugular foramen. HRCT helped to differentiate glomus tumors from vascular anomalies and from other benign or malignant lesions, and to determine the extent of deep involvement. It provided essential information for planning the surgical approach. When a lesion is large or appears atypical, complementary angiography is helpful. Otherwise, angiography may not be necessary.

Squamous cell carcinoma of the temporal bone

“…Multiplanar imaging is important because as was the case in our study, many patients have very limited findings on physical examination, and assessment of disease extent by physical examination alone is often inadequate. Modern imaging now allows accurate assessment of temporal bone cancer extension to the surrounding areas, such as the dura, brain, carotid artery, jugular foramen, and temporomandibular joint 31–34…”

MR imaging, CT, and angiography features of endolymphatic sac tumors: report of two cases

“…Glomus tumors are the most common tumors of the middle ear and the second most common tumors of the temporal bone after acoustic schwannomas [15]. These tumors originate from the neural crest cells, grow slowly, have a capsule, and are hypervascular [15,16]. Glomus tumors cause expansion in the jugular foramen, and erosion of the bony structures, and enhance prominently after contrast administration.…”

High Resolution Computed Tomography in the Evaluation of Temporal Bone Cholesteatoma

“…Out of the 12 HRCT diagnosed cases of CSOM 2 patients were found to have cholesteatoma with ossicular disruption on surgery and biopsy. 1 patient on biopsy was a case of paraganglioma 5,6,7,8,910 of the middle ear. The difficulty in diagnosis was mainly because of the lack of contrast as the patient refused contrast study for fear of allergic complications.…”