Differences between inflammatory pseudotumor and dacryoadenitis

The distinction between dacryoadenitis and inflammatory pseudotumor lies in their clinical presentations. Dacryoadenitis is characterized by swelling of the lacrimal gland, which may be accompanied by ptosis of the upper eyelid. A firm mass can be palpated below the lateral aspect of the supraorbital margin, though tenderness is usually absent. The eye may be displaced inward and downward, and diplopia may occur when looking upward or outward, although proptosis is rare. In contrast, inflammatory pseudotumor typically presents with eye pain, conjunctival injection and edema, proptosis, ocular motility disturbances, and decreased vision. It is important to maintain good ocular hygiene and follow a light, bland diet.