title: Hyaluronidase induced orbital pseudotumor as complication of retrobulbar anesthesia.
abstract: The authors describe 5 patients who developed an orbital pseudotumor as a complication of retrobulbar anesthesia. Allergy tests revealed a hypersensitivity to hyaluronidase, suggesting an immunoallergic etiology of the pseudotumor, which needed to be differentiated from other causes of proptosis after retrobulbar injection.
authors.affiliation: Department of Ophthalmology, U.Z. Sint-Rafaël, Leuven, Belgium.
authors.forename: A
authors.initials: A
authors.lastname: Kempeneers
authors.forename: L
authors.initials: L
authors.lastname: Dralands
authors.forename: J
authors.initials: J
authors.lastname: Ceuppens
mesh_terms: D000368:Aged; D000772:Anesthesia, Local / Q000009:adverse effects*; D002387:Cataract Extraction; D005094:Exophthalmos / Q000209:etiology; D005260:Female; D006801:Humans; D006821:Hyaluronoglucosaminidase / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D016727:Orbital Pseudotumor / Q000139:chemically induced* / Q000150:complications / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed
chemical_list: D006821:Hyaluronoglucosaminidase