Chalazion

Epidemiology and Etiology:

· Chronic lipogranulomatous reaction to lipid released from the Meibomian glands or glands of Zeis (sebaceous)

Common sites:

·

Gross features:

·

Histologic features:

· Granulomas centred on empty (lipid) vacuoles

Immunophenotype:

Marker:

Sensitivity:

Specificity:

Molecular features:

·

Other features:

·

References:

· Silverberg SG, DeLellis RA, Frable WJ, LiVolsi VA, Wick MR. Silverberg's Principles and Practice of Surgical Pathology and Cytopathology: 2-Volume Set. 4th ed. Churchill Livingstone; 2005:2656.