orbital fat


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Related to orbital fat: orbital rim

orbital fat 

Fat (e.g. adipose tissue) which fills all the space not occupied by the other structures of the orbit (eyeball, optic nerve, muscles, vessels, etc.). It extends from the optic nerve to the orbital wall and from the apex of the orbit to the septum orbitale.
References in periodicals archive ?
While satisfactory results could be achieved by current blepharoptosis surgical procedures, complications were inevitable due to the unpredictable nature of ptosis surgery.[1],[2],[3] In our modification, the most notable part is to fully release the orbital fat adhesion at first and then remeasure the prolapse distance of the upper eyelid and the function of levator muscle intraoperative in the supine position.
Extremely invasive sample collection (e.g., biopsy of orbital fat or extraorbital muscles), even if it is highly specific due to the close relationship with the location of a disease, must not be taken for granted because of (i) the related discomfort and risks of secondary complications for the patient; (ii) the restricted access for clinical diagnosis, and (iii) the great difficulty in collecting such samples from healthy control subjects.
In the subacute stage, wood assumes a moderate density and may be difficult to distinguish from surrounding orbital fat. In the chronic stage, the density of wood can become higher than that of orbital muscle.
However, the orbital fat thickness was significantly decreased in the responsive group than in the unresponsive group (P <0.05).
Orbital lymphomas are mostly unilateral [2, 3], and the most common sites are the eyelid, conjunctiva, lacrimal gland, and orbital fat tissues.
The superior aspect of the lamina papyracea was drilled away with only a small amount of orbital fat protruding from the foramen of the anterior ethmoidal artery.
CT examination has indicated that the increase in orbital fat in GO is consistent with the degree of exophthalmos and inconsistent with orbital muscle enlargement [19].
(1,4) Other findings include rim calcification in most cases, presence of a fluid level, and ipsilateral orbital fat congestion, though less than 50% of orbital dermoids exhibit fat within the lesion.
Clinical findings of ocular GPA arise from the inflammation of ocular structures, including the globe, orbital fat, orbital nerves, extraocular muscles, lacrimal glands, and optic nerve.
found that, in GO patients, 25% have orbital fat and muscle volumes within an age-specific reference range.
Fat saturation technique on postcontrast T1WI can help separate normal orbital fat from abnormal enhancement.