title: [Space-occupying lesions of the lacrimal gland in CT and MRI exemplified by 4 cases].
abstract: In an extended case report, we discuss four cases with masses in the lacrimal fossa representing the most important entities in this region (lymphoma, pleomorphadenoma, inflammatory pseudotumor, and malignant epithelial tumor). The different indications for CT and MRI are explained. For the differential diagnosis of lacrimal gland lesions, the following imaging parameters are important: the shape of the lacrimal gland, the inner structure, the degree of contrast enhancement, and the surrounding bony structures. In the evaluation of the expansion of lacrimal gland lesions, CT in thin slices with multiplanar reconstructions is equal to MRI. However, the contrast-enhancement of lacrimal glands is better evaluated with MRI than with CT. The bony structures are better visualized on CT than on MRI.
authors.affiliation: Universitätsklinikum Rudolf Virchow, Freie Universität Berlin, Strahlenklinik und Poliklinik.
authors.forename: A J
authors.initials: AJ
authors.lastname: Lemke
authors.forename: N
authors.initials: N
authors.lastname: Hosten
authors.forename: K
authors.initials: K
authors.lastname: Neumann
authors.forename: A
authors.initials: A
authors.lastname: Grote
authors.forename: R
authors.initials: R
authors.lastname: Felix
mesh_terms: D008949:Adenoma, Pleomorphic / Q000175:diagnosis; D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D005094:Exophthalmos / Q000209:etiology; D005134:Eye Neoplasms / Q000175:diagnosis*; D005260:Female; D006801:Humans; D007765:Lacrimal Apparatus / Q000473:pathology; D007766:Lacrimal Apparatus Diseases / Q000175:diagnosis*; D008223:Lymphoma / Q000175:diagnosis; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D016727:Orbital Pseudotumor / Q000175:diagnosis; D011230:Precancerous Conditions / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed
vernacular_title: Raumforderungen der Tränendrüse in CT und MRT am Beispiel von vier Fällen.