title: Differentiation between chalazion and sebaceous carcinoma by noninvasive meibography.
abstract: BACKGROUND
  Sebaceous carcinoma is notorious for masquerading clinically as other benign lesions such as chalazion. A tool to better differentiate between these two conditions would thus be desirable.
  
  
  OBJECTIVE
  To examine the potential application of noninvasive meibography in the differential diagnosis of chalazion and sebaceous carcinoma of the eyelid as a retrospective cross-sectional study.
  
  
  METHODS
  Five individuals with chalazion and three patients with sebaceous carcinoma were observed. Noninvasive meibography was performed to visualize the reflectivity and shape of the lesion in each subject.
  
  
  RESULTS
  Noninvasive meibographic imaging revealed chalazion as a lesion of overall low reflectivity with small regions of higher reflectivity corresponding to lipid granules. On the other hand, the noninvasive meibography revealed sebaceous carcinoma as a poorly marginated lesion of high reflectivity in the eyelid.
  
  
  CONCLUSIONS
  Noninvasive meibographic imaging may prove useful for the differential diagnosis of chalazion and sebaceous carcinoma. It may also be informative in definition of the resection area in carcinoma patients.
authors.affiliation: Department of Ophthalmology, Teikyo University School of Medicine, Tokyo, Japan.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Nemoto
authors.affiliation: Itoh Clinic, Saitama, The University of Tokyo, Tokyo, Japan ; Department of Ophthalmology, The University of Tokyo, Tokyo, Japan.
authors.forename: Reiko
authors.initials: R
authors.lastname: Arita
authors.affiliation: Department of Ophthalmology, Teikyo University School of Medicine, Tokyo, Japan.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Mizota
authors.affiliation: Department of Pathology, Teikyo University School of Medicine, Tokyo, Japan.
authors.forename: Yuko
authors.initials: Y
authors.lastname: Sasajima
keywords: chalazion; eyelid; noninvasive meibography; sebaceous carcinoma