Glomus tympanicum paraganglioma

Dr Yuranga Weerakkody and Dr Henry Knipe et al.

Glomus tympanicum paragangliomas (chemodectomas) are the most common middle ear tumor

There is a female predominance (M:F = 1:3); presentation is most common when patients are more than 40 years old 1,2

May be incidental but symptomatic masses produce pulsatile tinnitus, otalgia, or conductive hearing loss 1,3

Glomus tympanicum paragangliomas arise from the Jacobson nerve at the cochlear promontory

CT is usually the best modality to assess these masses. 

  • soft tissue mass lateral to the cochlear promontory
  • ossicles may or not be destroyed and may simply be encased
  • surrounding bony destruction may be present in aggressive tumors
  • intact jugular bulb

Surgical resection is the treatment of choice 4

On imaging consider:

Share article

Article information

rID: 40262
Tag: cases
Synonyms or Alternate Spellings:
  • Glomus tympanicum
  • Glomus tympanicum tumour
  • Glomus tympanicum chemodectomas
  • Glomus tympanicum tumors
  • Glomus tympanicum tumours
  • Glomus tympanicum tumor

Support Radiopaedia and see fewer ads

Cases and figures

  • Figure 1: distribution of paragangliomas
    Drag here to reorder.
  • Case 1
    Drag here to reorder.
  • Case 2
    Drag here to reorder.
  • Case 3
    Drag here to reorder.
  • Case 4
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.