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[CT and MRI characteristics of tumours of the temporal bone and the cerebello-pontine angle].
Radiologe. 2003 Mar; 43(3):219-26.R

Abstract

Tumours lesions of the temporal bone and of the cerebello-pontine angle are rare. This tumours can be separated into benign and malignant lesions. In this paper the CT and MRI characteristics of tumours of the temporal bone and the cerebello-pontane angle will be demonstrated. High resolution CT (HRCT) as usually performed in the axial plane are using a high resolution bone window level setting, coronal planes are the reconstructed from the axial data set or will be obtained directly. With the MRI FLAIR sequence in the axial plane the whole brain will be scanned either to depict or exclude a tumour invasion into the brain. After this,T2-weighted fast spin echo sequences or fat suppressed inversion recovery sequences in high resolution technique in the axial plane will be obtained from the temporal bone and axial T1-weighted spin echo sequences before and after the intravenous application of contrast material will be obtained of this region. Finally T1-weighted spin echo sequences in high resolution technique with fat suppression after the intravenous application of contrast material will be performed in the coronal plane. HRCT and MRI are both used to depict the most exact tumorous borders. HRCT excellently depicts the osseous changes for example exostosis of the external auditory canal, while also with HRCT osseous changes maybe characterized into more benign or malignant types. MRI has a very high soft tissue contrast and may therefore either characterize vascular space-occupying lesions for example glomus jugulare tumours or may differentiate between more benign or malignant lesions. In conclusion HRCT and MRI of the temporal bone are excellent methods to depict and mostly characterize tumour lesions and can help to differentiate between benign and malignant lesion. These imaging methods shall be used complementary and may have a great impact for the therapeutic planning.

Authors+Show Affiliations

Abteilung für Osteologie/Universitätsklinik Radiodiagnostik, AKH Wien, Vienna, Austria.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Evaluation Study
Journal Article

Language

ger

PubMed ID

12664237

Citation

Imhof, H, et al. "[CT and MRI Characteristics of Tumours of the Temporal Bone and the Cerebello-pontine Angle]." Der Radiologe, vol. 43, no. 3, 2003, pp. 219-26.
Imhof H, Henk CB, Dirisamer A, et al. [CT and MRI characteristics of tumours of the temporal bone and the cerebello-pontine angle]. Radiologe. 2003;43(3):219-26.
Imhof, H., Henk, C. B., Dirisamer, A., Czerny, C., & Gstöttner, W. (2003). [CT and MRI characteristics of tumours of the temporal bone and the cerebello-pontine angle]. Der Radiologe, 43(3), 219-26.
Imhof H, et al. [CT and MRI Characteristics of Tumours of the Temporal Bone and the Cerebello-pontine Angle]. Radiologe. 2003;43(3):219-26. PubMed PMID: 12664237.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [CT and MRI characteristics of tumours of the temporal bone and the cerebello-pontine angle]. AU - Imhof,H, AU - Henk,C B, AU - Dirisamer,A, AU - Czerny,C, AU - Gstöttner,W, PY - 2003/3/29/pubmed PY - 2003/6/10/medline PY - 2003/3/29/entrez SP - 219 EP - 26 JF - Der Radiologe JO - Radiologe VL - 43 IS - 3 N2 - Tumours lesions of the temporal bone and of the cerebello-pontine angle are rare. This tumours can be separated into benign and malignant lesions. In this paper the CT and MRI characteristics of tumours of the temporal bone and the cerebello-pontane angle will be demonstrated. High resolution CT (HRCT) as usually performed in the axial plane are using a high resolution bone window level setting, coronal planes are the reconstructed from the axial data set or will be obtained directly. With the MRI FLAIR sequence in the axial plane the whole brain will be scanned either to depict or exclude a tumour invasion into the brain. After this,T2-weighted fast spin echo sequences or fat suppressed inversion recovery sequences in high resolution technique in the axial plane will be obtained from the temporal bone and axial T1-weighted spin echo sequences before and after the intravenous application of contrast material will be obtained of this region. Finally T1-weighted spin echo sequences in high resolution technique with fat suppression after the intravenous application of contrast material will be performed in the coronal plane. HRCT and MRI are both used to depict the most exact tumorous borders. HRCT excellently depicts the osseous changes for example exostosis of the external auditory canal, while also with HRCT osseous changes maybe characterized into more benign or malignant types. MRI has a very high soft tissue contrast and may therefore either characterize vascular space-occupying lesions for example glomus jugulare tumours or may differentiate between more benign or malignant lesions. In conclusion HRCT and MRI of the temporal bone are excellent methods to depict and mostly characterize tumour lesions and can help to differentiate between benign and malignant lesion. These imaging methods shall be used complementary and may have a great impact for the therapeutic planning. SN - 0033-832X UR - https://www.unboundmedicine.com/medline/citation/12664237/[CT_and_MRI_characteristics_of_tumours_of_the_temporal_bone_and_the_cerebello_pontine_angle]_ DB - PRIME DP - Unbound Medicine ER -