Chalazion/Hailstone/ Internal hordeolum/ Meibomian cyst/ Tarsal cyst:
A chalazion is a chronic, sterile, granulomatous inflammatory lesion caused by retained sebaceous secretion leaking from the meibomian glands or other sebaceous glands into adjacent stroma.
Chronic granulomatous inflammation of the meibomian gland.
Fate of Chalazion:
- Spontaneous resolution.
- Increased size and causing mechanical ptosis.
- Secondary infection-internal hordeolum (painful chalazion).
- Burst either through skin/conjunctiva.
- Malignant change- Meibomian carcinoma.