Table 4.
| Benign | Malignant | Enhancing lesions with jugular foramen widening | Enhancing lesions without jugular foramen widening | 
|---|---|---|---|
| Paraganglioma (glomus tympanicum) | Primary malignancy | Paraganglioma (glomus jugulare) | Paraganglioma (glomus tympanicum) | 
| Paraganglioma (glomus jugulare) | Metastasis | Jugular bulb (dehiscent) | Hemangioma | 
| Jugular bulb (dehiscent) | Rhabdomyosarcoma | Schwannoma (jugular foramen) | Adenoma | 
| Hemangioma | Meningioma (jugular foramen) | ||
| Schwannoma | Metastasis | ||
| Meningioma | |||
| Adenoma | |||
| Langerhans cell histiocytosis |