title: Orbital histiocytic lymphoma arising from the ethmoid sinus.
abstract: Histiocytic lymphoma has been reported previously as an orbital manifestation of systemic malignancy. We report herein a 49-year-old white male with orbital involvement from a sclerosing lesion in the ethmoid sinus that initially caused a biopsy-proven orbital inflammatory mass. This report of an orbito-sinus histiocytic lymphoma underscores the need to re-biopsy symptomatic orbital inflammatory lesions that continue to enlarge.
mesh_terms: D001706:Biopsy; D005005:Ethmoid Sinus / Q000473:pathology*; D006801:Humans; D016403:Lymphoma, Large B-Cell, Diffuse / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009915:Orbit / Q000473:pathology*; D009918:Orbital Neoplasms / Q000473:pathology*; D010255:Paranasal Sinus Neoplasms / Q000473:pathology*