Learning objectives
To review the recommended imaging protocol and the utility of various Magnetic Resonance Imaging (MRI) sequences in identification and characterization of Intraventricular neoplasms.
To give differential diagnosis based upon the location and appearance of the lesion within the ventricle.
To be able to correlate the imaging (MRI) with the pathologic findings for the optimal management of the lesion.
Background
Intraventricular Lesions represent a subgroup of intracranial lesions with unique and characteristic image patterns that helps in the differential diagnosis1.
The ventricles are surrounded by ependymal and sub ependymal plate formed by the glial cells that can give rise to ependymoma and sub ependymoma.
Besides,
this lining and the septum pellucidum which is located between the corpus callosum and fornix,
separating the lateral ventricles,
can give rise to central neurocytoma 2.
The choroid plexus is the most vascularized structure located in the ventricular system and...
Findings and procedure details
Retrospective search for cases of Intraventricular neoplasms was done and MRI features were reviewed.
In this Pictorial review we will focus on MRI protocol for intraventricular neoplasms and will illustrate case based findings with special emphasis on correlation with histological diagnosis.
MRI protocol Axial,
Sagittal and coronal T1-Post Contrast,
axial FLAIR and T1-W1 of the brain are acquired.
DWI and ADC maps may be obtained in selected cases.
Axial,
coronal and sagittal T1- Post contrast are analyzed first to document the location of Intraventricular Lesion.
Conclusion
Intraventricular mass lesions arise from different types of tissues found in the central nervous system.
Therefore,
there exists a variety of presentation depending upon the type and location of the cell involved in the lesion.
In the present study,
the authors aimed at reviewing the imaging of important intraventricular lesions.
MRI findings in light of patients demographic details and clinical data can play a vital role to help radiologists understand the pathological process,
narrow the differential diagnosis and reach an accurate diagnosis.
Personal information
Sadia Sajjad
Medical Resident
Department of Radiology
Hamad General Hospital,
Doha,
Qatar
[email protected]
Nida Fatima
Resident Neurosurgeon
Department of Neurosurgery
Hamad General Hospital,
Doha,
Qatar
[email protected]
Sidra Sajid
Medical Intern
[email protected]
Surjith Vattoth
Senior consultant Radiology
Hamad General Hospital,
Doha,
Qatar
[email protected]
References
1.
Leite CC,
Sequeiros IM,
Lacerda MTC,
et al.
Tumores intraventriculares: achados à ressonância magnética.
Rev Imagem.
2001;23:73–85
2.
Koeller KK,
Sandberg GD; Armed Forces Institute of Pathology.
Cerebral intraventricular neoplasms:radiologic-pathologic correlation.
Radiographics.
2002;22:1473–505.
3.
Tien RD.
Intraventricular mass lesions of the brain: CT and MR findings.
AJR Am J Roentgenol.
1991;157:1283–90.
4.
Abosch,
A.,
McDermott,
M.W.
and Wilson,
C.B.
(2000) Lateral Ventricular Tumors.
In: Kaye,
A.H.
and Black,
P.M.,Eds.,
Operative Neurosurgery,
cilt 1,
Churchill Livingstone,
London,
800-812.