We present the case of a 67-year-old woman referred to our hospital with an eight week history of walking difficulties and nausea. On CT scans a tumour in the right cerebellopontine angle (CPA) was diagnosed. The tumour was resected and histopathological examination revealed an adenocarcinoma, suspected to be a metastasis from breast carcinoma treated surgically twelve years earlier.
AokiSSasakiYMachidaT: Contrast-enhanced MR images in patients with meningioma: Importance of enhancement of the dura adjacent to the tumour. Am J Neuroradiol11: 935–938, 1990.
2.
BaldwinDKingTTChevrettonE: Bilateral cerebellopontine angle tumours in neurofibromatosis type 2. J Neurosurg74: 910–915, 1992.
3.
BrackmannDEBartelsLJ: Rare tumours of the cerebellopontine angle. Otolaryngol Head Neck Surg88: 555–559, 1982.
4.
BrackmannDEKwartlerJA: A review of acoustic tumours: 1983–1988. Am J Otol11: 216–232, 1990.
5.
BuisDRPeerdemanSMVandertopWP: Metastatic adenocarcinoma in cerebellopontine angle, presenting as a meningioma: A case report of rare occurrence. Acta Neurochir146: 1369–1372, 2004.
6.
DebevecM: Management of patients with brain metastases of unknown origin. Neoplasma37: 601–606, 1990.
7.
DhopeshVPYagnikPM: Brain metastasis: Analysis of patients without known cancer. South Med J78: 171–172, 1985.
8.
GoldsherDLittAWPintoRS: Dural “tail” associated with meningiomas on Gd-DTPA-enhanced MR images: Characteristics, differential diagnostic value, and possible implications for treatment. Radiology176: 447–450, 1990.
9.
HiramatsuKMiyazawaTSuzukiK: Calvarial metastasis of cervical carcinoma showing the dural tail sign on magnetic resonance imaging (in Japanese). No To Shinkei47: 63–67, 1995.
10.
KawaharaYNiiroMYokoyamaS: Dural congestion accompanying meningioma invasion into vessels: The dural tail sign. Neuroradiology43: 462–465, 2001.
11.
LewanskiCRBotwoodNGlaserMG: Bilateral cerebellopontine metastases in a patient with an unknown primary. Clin Oncol (R Coll Radiol)11: 272–273, 1999.
12.
MallucciCLWardVCarneyAS: Clinical features and outcomes in patients with non-acoustic cerebello-pontine angle tumours. J Neurol Neurosurg Psychiatry66: 768–771, 1995.
MoriokaTMatsushimaTIkezakiK: Intracranial adenoid carcinoma mimicking meningioma: Report of two cases. Neuroradiology35: 462–465, 1993.
15.
SenegorM: Prominent meningeal “tail sign” in a patient with a metastatic tumour. Neurosurgery29: 294–296, 1991.
16.
SimonettiLBacciAAgatiR: Neoplasie extra-assiali. In: Trattato Italiano di Risonanza Magnetica in Neuroradiologia. Ed. Dal PozzoG., UTET, Firenze2001: Pp. 613–651.
17.
ThomasNWKingTT: Meningiomas of the cerebello-pontine angle. A report of 41 cases. Br J Neurosurg10: 59–68, 1996.
18.
TokumaruAO'UchiTEguchiT: Prominent meningeal enhancement adjacent to meningioma on Gd-DTPA-enhanced MR images: Histopathologic correlation. Radiology175: 431–433, 1990.
19.
van de PolMvan AalstVCWilminkJT: Brain metastases from an unknown primary tumour: Which diagnostic procedures are indicated?J Neurol Neurosurg Psychiatry61: 321–323, 1996.