Mucocele
These mucus-filled cysts may invade the orbital cavity in chronic sinusitis.
They displace orbital tissue and cause
exophthalmos.
Treatment is required in the following cases:
❖ Displacement of the globe causes cosmetic or
functional problems, such as lagophthalmos or limited motility.
❖ Compression neuropathy of the optic nerve
results.
❖The mucocele becomes infected (pyocele).
Mycoses (Mucormycosis and Aspergillomycosis)
These rare
disorders occur primarily in immunocompromised patients, such as those with
diabetes mellitus or AIDS. The disorder often spreads from infected paranasal sinuses. The clinical picture is similar to
those of inflam-matory orbital disorders.
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