Shintaro SUKEGAWA1), Takahiro KANNO1,2), Yuta KOYAMA3), Akane SHIBATA1), Kenichi MATSUMOTO1), Yuka SUKEGAWA-TAKAHASHI1), Kyosuke SAKAIDA1), Shigeto TANAKA3), Yoshihiko FURUKI1) 1)Division of Oral and Maxillofacial Surgery, Kagawa Prefectural Central Hospital, Takamatsu, 760-8557, Japan 2)Department of Oral and Maxillofacial Surgery, Shimane University Faculty of Medicine, Izumo, 693-8501, Japan...

Idiopatic pseudotumor (IP) is a non-specific, non-neoplastic, inflammatory process without identifiable local or systemic causes. IP most commonly affects the orbit, comprising 5% to 8% of all orbital masses with occasional extension to other areas of the skull base. The ophthalmology literature has detailed reviews of IP as a space-occupying intraorbital lesion, but lesion involving only the s...

A 77-year-old Japanese woman presented to an ophthalmologist with an erythematous swollen upper eyelid and diplopia which was initially diagnosed to be idiopathic dacryoadenitis on the basis of a histological evaluation of an orbital mass that was in remission following a 3.5-month period of systemic corticosteroid therapy. She subsequently developed respiratory symptoms, and was finally diagno...

The Tolosa-Hunt syndrome (THS), a steroid-responsive painful ophthalmoplegia secondary to idiopathic granulomatous inflammation, historically has been categorized as a diagnosis of exclusion because of its nonspecific radiologic presentation. Five patients who satisfied the anatomic and clinical criteria of this syndrome underwent high-resolution CT of the orbital apex/cavernous sinus region. T...

The blood-brain barrier disruption (BBBD) procedure is an established strategy to enhance drug delivery to brain tumors. Complication rates associated with this procedure are usually low, but when complications do occur, they usually mandate discontinuation of treatment. Orbital pseudotumor is an inflammatory condition of one or more extraocular muscles that produces limitation of ocular motili...

purpose: to verify the myofibroblastic origin of spindle cells by immunohistochemistry in idiopathic inflammatory pseudotumor (ipt) of the orbit. methods: we reviewed a series of 32 orbital ipts for expression smooth muscle actin (sma), vimentin, desmin and anaplastic lymphokinase (alk). results: the study was performed on histologic samples of 33 patients with a diagnosis of orbital ipt. the l...