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Title

An unusual case of orbital cellulitis

Purpose	To report an atypical, impressive orbital cellulitis which revealed a lacrimal gland invasion of a temporal bone metastasis of a yet undetected prostate carcinoma.
Methods	A case report of a 58 year old man.
Results	Clinical examination showed a right posterior orbital cellulitis with restriction of the motility, proptosis and hypotropia. The best corrected visual acuity of the right eye was 9/10. A total work-up, including a biopsy of the right temporal bone and lacrimal gland, revealed a metastasis of a poorly differentiated, fully metastasized prostate carcinoma.
Conclusion	Metastatic disease to the orbit is uncommon, presenting only 2% to 9% of all orbital neoplasms. Orbital metastases caused by prostate carcinoma are quite rare, accounting for only 3,6% of all orbital metastases encountered in clinical practice. Atypical cases of orbital cellulitis warrant a meticulous work-up, because more extensive underlying pathology, such as metastatic disease, may be present.

Author 1

Last name	BROUWERS
Initials	K
Department	Department of Ophthalmology, University Hopspital Brussels
City	Brussels

Author 2

Last name	SALU
Initials	P
Department	Department of Ophthalmology, University Hopspital Brussels
City	Brussels