Table 1.
Case Reports of Trigeminal Neuralgia Caused by Cerebellopontine Angle Lipomas
| Reference | Age (y) | M/F | Symptoms | Duration | L/R | Management | Findings | Complete/Incomplete Resection | Postoperatively |
|---|---|---|---|---|---|---|---|---|---|
| Note the intimate relationship between cranial nerves (CN) and the lipoma. Postoperative CN deficits are common and surgical approaches favor incomplete resection. AICA, anterior inferior cerebellar artery; CBZ, carbamazepine; NR, not reported; TN, trigeminal neuralgia. | |||||||||
| Budka et al5 | 26 | F | L TN, Vertigo R TN, R hearing loss | 2 | R | Surgery | Pea sized lipoma Lipomatous infiltration of acoustic nerve | Incomplete | TN relief No additional deficit |
| Graves and Schemm12 | 26 | M | TN, dizziness, tinnitus Mild hearing loss | 5 | L | Surgery | CNVII, VIII, IX, X involved. CN V compressed. Adherent to brainstem. Rhizotomy | Incomplete. Nerves embedded & vascular | TN relief Complete hearing loss |
| Rosenbloom et al13 | 28 | M | TN V2 Hypoaesthesia V1V2 Nausea dizziness Headaches L ptosis | 1 y | L | Surgery | Yellow VII VIII IX incorporated V1,V2 adjacent | Incomplete Adherent to CN, vessels, brainstem | Headache & facial pain alleviated but new hearing loss & persistent dizziness |
| Delgado Mije et al14 | 35 | F | TN V3 | NR | R | Surgery | Yellow. Adherent to brainstem, enveloping V | Incomplete CN involved | TN relief |
| Aihara et al15 | 47 | F | TN VII dysfunction | 1 y | R | Surgery | CNVII, VIII encompassed. Attached to CNV | Incomplete | NR |
| Kato et al16 | 13 | F | TN V3 | 6 m | R | Surgery | Yellow Encasing VII, VIII, AICA. V infiltrated Rhizotomy | Incomplete | TN relief. V2 V3 deficits. Transient tinnitus, hearing loss, nystagmus (3 mo) |
| Behar et al17 | 23 | M | TN V3 L ptosis | 6 m | R | CBZ Surgery | CN VII, VIII, IX, X course through mass | Incomplete (CN) | Hearing loss |
| Celik et al18 | 32 | M | TN | 8 | L | Surgery | Yellow Encasing VII, VIII Displacing V | Incomplete Trauma to VII &VIII | TN relief Facial n. palsy, hearing loss |
| Raieli et al20 | 8 | M | TN V3 Facial spasm | 2 y | R | CBZ Imaging | NR | NR | NR |
| Alafaci et al19 | 16 | F | TN V2 V3 Vertigo Hearing loss | 2 y | R | Surgery | Yellow Incorporating VII VIII AICA displaced causing compression Histo: nerve fibers traversing adipose tissue | Incomplete CN involved | TN relief Hearing loss same Temporary facial n. palsy |
| Schlierter et al21 | 24 | M | TN | NR | L | Medical | NR | NR | NR |
| Marton et al22 | 46 | M | Hearing loss (12 y) TN (10 y) severe for year | 1 y | L | Surgery | Between V and VII/VIII complex | Incomplete Arachnoid debridement only | TN relief Hearing deficit same |