Orbital involvement in chronic lymphocytic leukemia (CLL) is rare with very few published cases. We describe a case of unilateral isolated extraocular muscle enlargement in a patient with CLL. An incisional biopsy was performed from the left medial rectus muscle and histology revealed a lymphocytic infiltrate suggestive of CLL. Complete resolution of signs and symptoms was subsequently achieved...

Two patients, previously diagnosed and treated for euthyroid, autoantibody-negative thyroid eye disease, presented with active orbitopathy. An atypical disease course and presentation prompted orbital biopsy. Extraocular muscle histopathology demonstrated noncaseating granulomatous inflammation consistent with presumed orbital sarcoidosis involving multiple extraocular muscles, including the in...

1) Studies were made of the accessory abducens nucleus and its relationship to the extraocular muscles besides the retractor bulbi muscles in the rat. 2) All the extraocular muscles had nerve fiber connections from the accessory abducens nucleus besides the retractor bulbi muscles. 3) The relationship between the accessory facial nucleus and accessory abducens nucleus was investigated. The acce...

Introduction Many medical indications for orbital decompression exist in patients with Graves‘ orbitopathy (GO) of which the dysthyroid optic neuropathie (DON) is rather severe and has to be urgently treated. The neuropathy nerve commonly caused by swelling extraocular muscle tissue resulting a compression area apex orbitae or stretching proptosis. Most common symptoms include decreased color s...

Light microscopy, electron microscopy and morphometry revealed structural details and allowed generation of a three-dimensional reconstruction of the pulley and muscle-pulley interface of extraocular muscle. The inferior rectus orbital layer was bifurcate in shape and extended anterior to the pulley. The putative pulley structure itself was asymmetric; loosely attached at the orbital aspect it ...

Primary, localised orbital amyloidosis has been reported previously in only 15 patients. A case with amyloidosis strictly localised to an extraocular muscle is presented.