-2 :: Case - 14049 :: - Orbital pseudotumor
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Tx and Followup:
Antibiotics and steroids with resolution of symptoms anticipated in 48 hours.

Discussion Author: James George Smirniotopoulos, M.D.

Orbital pseudotumor, also known as idiopathic orbital inflammation
• most common cause of an intra-orbital mass in persons 10-40 years old.
• one of the most common causes of unilateral exophthalmos.
• commonly causes bilateral exophthalmos.

» Clinical triad:
• pain
• proptosis
• impaired ocular motility

» Two categories:
• acute: vasculitis with vessel wall necrosis and fibrinoid changes.
• chronic: inflammatory process with diffuse infiltration by lymphocytes, plasma cells, and macrophages.

» Associations:
• Wegener's midline granuloma
• fibrosing mediastinitis
• thyroiditis
• cholangitis

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