Chalazia (lipogranuloma) are characterized by granulomatous inflammation (epitheloid histiocytes and/or multinucleated giant cells) surrounding clear spaces. The clear spaces are formed by lipid that is dissolved during fixation.
Ophthalmic Atlas Images by EyeRounds.org, The University of Iowa are licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.