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ABSTRACT: Most of the space demands in the cerebellopontine angle lie extra-axially. Important structures run within the cisterns of the cerebellopontine angle, such as the trigeminal, facial and vestibulocochlear nerves as well as the anterior inferior and posterior inferior cerebellar arteries and the veins which lead to the petrosal sinus. The most common space demands are caused by acoustic neuromas, meningeomas, vascular ectasia and aneurysms. Less common are epidermoid and other schwannomas as well as metastases, paragangliomas and arachnoidal cysts. Intra-axial tumours in the area of the cerebellopontine angle include the medulloblastoma, astrocytoma and the ependymoma, which occurs predominantly in children, in addition to the uncommon choroid plexus papilloma. Nearby, there are also space demands around the petrous bone, such as cholesterol granuloma, malignant otitis media, paraganglioma and metastases. For differential diagnosis, an understanding of the space requirements of the tumours in the cerebellopontine angle is needed in addition to knowledge of the anatomical structures.
Der Radiologe 12/2004; 44(11):1113-36; quiz 1137. · 0.61 Impact Factor
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ABSTRACT: Die Mehrzahl der Raumforderungen im Kleinhirnbrckenwinkel liegt extraaxial. Innerhalb der Kleinhirnbrckenwinkelzisterne verlaufen wichtige Strukturen, v.a. N.trigeminus, N.facialis, N.vestibulocochlearis sowie A.cerebelli inferior anterior, A.cerebelli inferior posterior und zum Sinus petrosus fhrende Venen. Die hufigsten Raumforderungen im Kleinhirnbrckenwinkel sind Akustikusneurinom, Meningeom sowie vaskulre Ektasien und Aneurysmen. Seltener sind Epidermoid und andere Schwannome sowie Metastasen, Paragangliome und Arachnoidalzysten. Intraaxial gelegene Tumoren im Bereich des Kleinhirnbrckenwinkels sind v.a. Medulloblastom, Astrozytom und Ependymom, die vorwiegend bei Kindern vorkommen, seltener Plexuspapillome. Daneben finden sich Raumforderungen, die vom Felsenbein ausgehen, wie Cholesterolgranulom, maligne Otitis media, Paragangliome und Metastasen. Zur Differenzialdiagnose sind neben den anatomischen Strukturen auch die Kenntnisse der Darstellung der verschiedenen Raumforderungen und Tumoren im Kleinhirnbrckenwinkel notwendig.Most of the space demands in the cerebellopontine angle lie extra-axially. Important structures run within the cisterns of the cerebellopontine angle, such as the trigeminal, facial and vestibulocochlear nerves as well as the anterior inferior and posterior inferior cerebellar arteries and the veins which lead to the petrosal sinus. The most common space demands are caused by acoustic neuromas, meningeomas, vascular ectasia and aneurysms. Less common are epidermoid and other schwannomas as well as metastases, paragangliomas and arachnoidal cysts. Intra-axial tumours in the area of the cerebellopontine angle include the medulloblastoma, astrocytoma and the ependymoma, which occurs predominantly in children, in addition to the uncommon choroid plexus papilloma. Nearby, there are also space demands around the petrous bone, such as cholesterol granuloma, malignant otitis media, paraganglioma and metastases. For differential diagnosis, an understanding of the space requirements of the tumours in the cerebellopontine angle is needed in addition to knowledge of the anatomical structures.
Der Radiologe 10/2004; 44(11):1113-1137. · 0.61 Impact Factor
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Der Radiologe 12/2002; 42(11):905-8. · 0.61 Impact Factor
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Der Radiologe 10/2002; 42(11):905-908. · 0.61 Impact Factor
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Der Radiologe 01/2002; 41(12):1080-3. · 0.61 Impact Factor
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Der Radiologe 12/2001; 41(11):1005-7. · 0.61 Impact Factor
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ABSTRACT: Lumbar epiduro-arachnoiditis is an infectious disease of the three mengial layers. It is often caused by surgical interventions on the spine. In this survey etiologic factors, clinical symptoms and radiological findings are compared. The radiologic classification of Delamater is described by three clinical cases. The diagnostic value of different procedures such as myelography, postmyelographic computed tomography and MR imaging is evaluated.
Der Radiologe 12/2001; 41(11):987-92. · 0.61 Impact Factor
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Der Radiologe 11/2001; 41(12):1080-1083. · 0.61 Impact Factor
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ABSTRACT: Die Arachnoiditis ist eine entzündliche Erkrankung der 3 meningealen Schichten (Pia, Arachnoidea und Dura) die in aller Regel
durch instrumentelle und chirurgische Eingriffe an der Wirbelsäule entsteht. In diesem Übersichtsbeitrag werden ätiologische
Faktoren, klinische Beschwerden und die radiologischen Befunde vorgestellt. Die Einteilung nach Delamater wird anhand von
3 klinischen Fällen vorgestellt. Differenzialdiagnostische Kriterien zur Abgrenzung gegen andere, insbesondere postoperative
Wirbelsäulenbefunde, werden aufgezeigt. Die diagnostische Wertigkeit der Myelographie, postmyelographische Computertomographie
und Magnetresonanztomographie werden verglichen.
Lumbar epiduro-arachnoiditis is an infectious disaese of the three mengial layers. It is often caused by surgical interventions
on the spine. In this survey etiologic factors, clinical symptoms and radiological findings are compared. The radiologic classification
of Delamater is described by three clinical cases. The diagnostic value of different procedures such as myelography, postmyelographic
computed tomography and MR imaging is evaluated.
Der Radiologe 10/2001; 41(11):987-992. · 0.61 Impact Factor
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Der Radiologe 01/2001; 41(11):1005-1007. · 0.61 Impact Factor
