Type:
Educational Exhibit
Keywords:
Oncology, MR, Imaging sequences, Neoplasia
Authors:
S. Kadri1, S. Arooj2, A. Ghulam Mohammad 2, N. Ahmed2, F. ahmad3, T. Mahmood2; 1Karachi, karachi/PK, 2Karachi/PK, 3Lahore/PK
DOI:
10.26044/ecr2019/C-3274
Background
Cerebellopontine angle is a space filled with cerebrospinal fluid.
The lateral border,
formed by the petrous temporal bone.
Medially it is continuous with the pontine and medullary cisterns,
and pons itself.
The posterior border is formed by the cerebellar hemisphere.
The CPA roof is limited by the tentorium and its attachment to the petrous bone.
The fifth through eighth cranial nerves are in the upper part of the CPA cistern,
and the lower portion contains the 9th,
10th,
and 11th cranial nerves.
Cerebellopontine angle (CPA) tumors are the most common neoplasms in the posterior fossa,
accounting for 5-10% of intracranial tumors.
Various anatomic structures may be involved in CP Angle pathology .
Usually,
a proper MRI examination is sufficient for an accurate diagnosis.
The different sequences can be used specially designed for the investigation of the various structures .
For this purpose the radiologist plays important role in reaching an accurate diagnosis and to provide the road map to clinician.