orbital abscess

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or·bi·tal ab·scess

a collection of pus often located between the orbital periosteum and the lamina papyracea; frequently an extension of purulent infection of the paranasal sinuses, usually the ethmoids.

orbital abscess

An abscess in the orbit of the eye.
See also: abscess


pertaining to the eye socket.

orbital abscess
may be associated with orbital cellulitis. Can be caused by foreign bodies, wounds, tooth infection, or fractures. Clinical signs include protrusion of the globe, pain on opening of the mouth, and often edema of the eyelids.
orbital arteries
the external and internal ophthalmic arteries.
orbital gland
orbital index
the ratio of the height of the orbit to the width.
orbital ligament
the fibrous band which completes the lateral margin of the orbit in the cat, dog and other species which do not have a post-orbital bar; reaches from the frontal process of the zygomatic bone to the zygomatic process of the frontal bone.
orbital neoplasm
in dogs sarcoma and carcinoma common, multilobular osteoma occurs; in other species tumors uncommon except for metastatic lymphoma and cancer eye in cattle and to a lesser extent in horses.
orbital sinus bleeding
often the method of bleeding small rodents; the anesthetized rat or mouse is bled via a microhematocrit tube or pipette inserted through the medial canthus of the eye.
References in periodicals archive ?
Superolateral subperiosteal orbital abscess complicating sinusitis in a child.
Pediatric sinusitis and subperiosteal orbital abscess formation: diagnosis and treatment.
Surgical treatment of subperiosteal orbital abscess.
The clinical manifestations of orbital infection are the primary determining factors in making a provisional diagnosis, and CT is the gold standard for diagnosing an orbital abscess associated with sinusitis.
Orbital abscess (stage IV) is associated with severe proptosis and complete ophthalmoplegia (figure 3).
Open sinus surgery--primarily external ethmoidectomy and the Caldwell-Luc procedure--was widely used up unti l the early 1990s, and it is still considered the procedure of choice for most patients with severe complications of sinusitis or orbital abscess formation.
Through a modified medial canthal ligament approach, a left radical ethmoidectomy and drainage of the orbital abscess were performed.
Chandler et al defined the five stages of orbital complications of sinusitis as inflammatory edema, orbital cellulitis, subperiosteal abscess, orbital abscess, and cavernous sinus thrombosis.
The distinction was essential because an orbital abscess warrants surgical drainage, while orbital cellulitis can be treated with antimicrobial and antifungal chemotherapy a lone.