Structures passing through Jugular foramen : Mnemonic

Mnemonic: IPS 9,10,11 MAP JOE

Anterior part: IPS

1. Inferior Petrosal Sinus

Middle part: 9, 10, 11 MAP

1. CN IX
2. CN X
3. CN XI
4. Meningeal br. of Ascending Pharyngeal artery

Posterior part: JOE

1. Jugular vein (internal; lower end of sigmoid sinus)
2. Occipital artery
3. Emissary vein

Vernet’s syndrome (Jugular foramen syndrome)

• Unilateral paresis of 9, 10 and 11 cranial nerves together
• Results in ipsilateral paresis of sternocleidomastoid and trapezius muscle, dysphonia, homolateral vocal cord paralysis, and loss of taste sensation from ipsilateral posterior 1/3 of tongue, uvula, larynx and pharynx
• Cause:
  • Trauma
  • Tumor (Glomus tumors, meningioma, acoustic neuroma, metastatic CP angle tumors)
  • Inflammation