Fisch Classification of Glomus Jugulare

  • A – Tumors limited to the middle ear space
  • B – Tumors limited to the middle ear or mastoid without involvement of the intralabyrinthine space of the temporal bone
  • C – Tumors ┬áinvolving the intralabyrinthine and apical spaces of the temporal bone, with extension into the apex
  • D1 – Tumors with intracranial extension < 2 cm in diameter
  • D2 – Tumors with intracranial extension > 2 cm in diameter

Reference:

Fisch U MD. Microsurgery of the skull base. Stuttgart: Thieme; 1988