Abstract
About 10% of all intracranial tumors are localized in the cerebellopontine angle and in the internal auditory canal. Less than 2% of these are lipomas. Furthermore, it can be expected that lipomas in this position with a bilateral localization are exceedingly rare. We describe a 70-year-old-woman with lipomas in both internal auditory canals presented in the literature for the first time and include a detailed literature research.
Get full access to this article
View all access options for this article.
References
1.
Bancroft
LW
Kransdorf
MJ
Peterson
JJ
. Benign fatty tumors: Classification, clinical course, imaging appearance, and treatment . Skeletal Radiol. 2006 ; 35 (10 ): 719 –33 .
2.
Singh
SP
Cottingham
SL
Slone
W
. Lipomas of the internal auditory canal . Arch Pathol Lab Med. 1996 ; 120 (7 ): 681 –683 .
3.
Yildiz
H
Hakyemez
B
Koroglu
M
. Intracranial lipomas: Importance of localization . Neuroradiology. 2006 ; 48 (1 ): 1 –7 .
4.
Kazner
E
Stochdorph
O
Wende
S
. Intracranial lipoma. Diagnostic and therapeutic considerations . J Neurosurg. 1980 ; 52 (2 ): 234 –245 .
5.
Suzuki
M
Takashima
T
Kadoya
M
. Pericallosal lipomas: MR features . J Comput Assist Tomogr. 1991 ; 15 (2 ): 207 –209 .
6.
Muludemann
WO Schuhmann
Schreiber
H
. Cerebellopontine angle lipoma: A rare differential diagnosis . Skull Base Surg. 1997 ; 7 (4 ): 199 –205 .
7.
Sataloff
RT
. Hearing loss associated with hereditary diseases and syndromes . Ear Nose Throat J. 1983 ; 62 (11 ): 571 –593 .
8.
Osaka
K
Handa
H
Matsumoto
S
. Development of the cerebrospinal fluid pathway in the normal and abnormal human embryos . Childs Brain. 1980 ; 6 (1 ): 26 –38 .
9.
Donati
F
Vassella
F
Kaiser
G
. Intracranial lipomas . Neuropediatrics. 1992 ; 23 (1 ): 32 –38 .
10.
Leibrock
LG
Deans
WR
Bloch
S
. Cerebellopontine angle lipoma: A review . Neurosurgery . 1983 ; 12 (6 ): 697 –699 .
11.
Christensen
WN
Long
DM
Epstein
JI
. Cerebellopontine angle lipoma . Hum Pathol. 1986 ; 17 (7 ): 739 –743 .
12.
Saunders
JE
Kwartler
JA
Wolf
HK
. Lipomas of the internal auditory canal . Laryngoscope. 1991 ; 101 (10 ): 1031 –1037 .
13.
Dazert
S
Aletsee
C
Brors
D
. Rare tumors of the internal auditory canal . Eur Arch Otorhinolaryngol. 2005 ; 262 (7 ): 550 –554 .
14.
Klob
J
. Zur Pathologie der Fettgeschwulste . Z K K Gesellsch Arzte Wien. 1859 ; 673 –675 .
15.
Rodriguez
Prado N
Pendas
JL Llorente
Martinez
JR Gomez
. [Cerebellopontine angle and internal auditory canal lipomas: Report of four cases and review of the literature] . Acta Otorrinolaringol Esp. 2004 ; 55 (3 ): 126 –130 .
16.
Bigelow
DC
Eisen
MD
Smith
PG
. Lipomas of the internal auditory canal and cerebellopontine angle . Laryngoscope. 1998 ; 108 (10 ): 1459 –1469 .
17.
Huang
TS
. Primary intravestibular lipoma . Ann Otol Rhinol Laryngol. 1989 ; 98 (5 Pt 1 ): 393 –395 .
18.
Dahlen
RT
Johnson
CE
Harnsberger
HR
. CT and MR imaging characteristics of intravestibular lipoma . Am J Neuroradiol. 2002 ; 23 (8 ): 1413 –1417 .
19.
Greinwald
JH
Jr
. Lassen LF. Lipomas of the internal auditory canal . Laryngoscope. 1997 ; 107 (3 ): 364 –368 .
20.
Wong
ML
Larson
TI
Brackmann
DE
. Lipoma of internal auditory canal . Otolaryngol Head Neck Surg. 1992 ; 107 (3 ): 374 –376 .
21.
Asthagiri
AR
Parry
DM
Butman
JA
. Neurofibromatosis type 2 . Lancet. 2009 ; 373 (9679 ): 1974 –1986 .
22.
Amonkar
PP
Amonkar
UKK
Patil
JA
. Cerebellopontine angle lipomas, multiple pigmented nevi, and temporal lobe hypoplasia: A new neurocutaneous syndrome? Am J Roentgenol. 1997 ; 169 (5 ): 1429 –1430 .
23.
Gerganov
VM
Hore
N
Herold
C
. Bilateral malignant melanoma metastases to the internal auditory canal/cerebellopontine angle: Surgical management and preservation of function . J Neurosurg. 2008 ; 108 (4 ): 803 –807 .
24.
Kohan
D
Downey
LL
Lim
J
. Uncommon lesions presenting as tumors of the internal auditory canal and cerebellopontine angle . Am J Otol. 1997 ; 18 (3 ): 386 –392 .
25.
Ajal
M
Roche
J
Turner
J
. Unusual lesions of the internal auditory canal . J Laryngol Otol. 1998 ; 112 (7 ): 650 –653 .
26.
Samii
M
Matthies
C
. Management of 1000 vestibular schwannomas (acoustic neuromas): The facial nerve-preservation and restitution of function . Neurosurgery . 1997 ; 40 (4 ): 684 –694 ; discussion 694–695.
27.
Christensen
WN
Long
DM
Epstein
JI
. (1986) Cerebellopontine angle lipoma . Hum Pathol. 1986 ; 17 (7 ): 739 –743 .
28.
Ashkenasi
RS
Royal
SA
Cuffe
MJ
. Cerebellopontine angle lipoma in a teenager . Pediatr Neurol. 1990 ; 272 –274 .
