Three middle-aged male patients had painless superior temporal orbital tumor causing globe displacement. Roentgenograms revealed superior temporal orbital tumor with lysis of bone. Surgical excision and curettage completely removed the lesions, which extended from the frontal bone to the periorbita and the dura. Histologically, these were cystic lesions containing a granulomatous reaction to bl...

BACKGROUND Mucoceles are slowly expanding cystic lesions with respiratory epithelium containing mucus most commonly affecting the frontal and ethmoidal sinuses. They are caused by obstruction of sinus ostium. Mucoceles exert pressure on the bony boundaries and due to the proximity to the brain and orbit extension to these areas are common. CASE PRESENTATION A case of a frontal mucocele with a...

Cellular uptake and cytotoxicity of nanostructured hydroxyapatite (nanoHAp) are dependent on its physical parameters. Therefore, an understanding of both surface chemistry and morphology of nanoHAp is needed in order to be able to anticipate its in vivo behavior. The aim of this paper is to characterize an engineered nanoHAp in terms of physico-chemical properties, biocompatibility, and its cap...

BACKGROUND The aim of orbital wall reconstruction is to reestablish anatomically exact orbital volumes to avoid long-term complications. Navigation could facilitate complex reconstructions. METHODS Quality of the orbital reconstruction (n=94) was measured based on (A) volume changes and (B) on 3D shape deviations compared to the unaffected side. Volume analysis included segmentation of the or...

The aim of this article is to investigate a retrocaruncular approach for repairing medial orbital wall fractures. A total of 10 fresh cadaver orbits were dissected to investigate a transconjunctival approach to the orbit posterior to the caruncle. Medical records of consecutive patients with medial orbital wall fractures repaired via a retrocaruncular incision at Wilmer Eye Institute over a 10-...

PURPOSE To describe a case of an orbito-nasal cyst in a cat. PROCEDURE An 18-month-old male European short-haired cat was presented to the Ophthalmology service of the Vetsuisse Faculty, University of Zurich for a subcutaneous swelling in the medial canthal region of the right eye (OD). Ophthalmologic, ultrasound and CT examinations, and fine needle aspiration were performed. After lesion exc...

PURPOSE We report 3 cases of unilateral blepharoptosis after orbital medial wall reconstruction and describe the cause and clinical outcome. METHODS Observational case series. RESULTS Three previously healthy patients underwent reconstruction for orbital medial wall fracture. All 3 patients had complete unilateral upper eyelid ptosis with no levator palpebrae superioris muscle function imme...

AIMS To determine the effectiveness and safety of three wall orbital decompression by the coronal approach in Graves' ophthalmopathy. METHODS The records of 125 patients with Graves' ophthalmopathy, who had undergone three wall orbital decompression by coronal approach between April 1984 and October 1993, were studied retrospectively. Special attention was paid to proptosis reduction, changes...

The authors describe the MR appearance of an intraconal orbital vascular leiomyoma that probably arose from smooth muscle in the wall of a vein. Cavernous hemangiomas, schwannomas, neurofibromas, and other well-encapsulated masses can have a similar appearance.

BACKGROUND We present a case report of a professional diver who sustained a fracture of the left orbital medial wall as well as floor exceeding 50% with orbital fat herniation blocking the maxillary sinus ostium. This may result in a closed cavity within the maxillary sinus that could potentially result in barotraumas during future diving. The aim of his surgery consists of repairing the orbita...