Left orbit lesion. Orbit: There is an enhancing tubular lesion with low diffusivity in the superonasal aspect of the left orbit that appears that appears to envelope part of the adjacent extraocular muscles. The lesion measures up to approximately 20 mm. The left globe and optic nerve are intact. The right orbit is unremarkable. The orbital walls are intact. Brain: There is no evidence of intracranial hemorrhage, mass, or acute infarct. The brain parenchyma and pituitary gland appear unremarkable. There is no abnormal intracranial enhancement. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. There is a right parotid nodule with high T2 signal and heterogeneous enhancement that measures up to 12 mm.
1. An enhancing tubular lesion with low diffusivity in the superonasal aspect of the left orbit that appears that appears to envelope part of the adjacent extraocular muscles may represent a lymphoproliferative process or metastatic lesion, for example. 2. A right parotid nodule with high T2 signal and heterogeneous enhancement that measures up to 12 mm may represent a primary salivary gland neoplasm or metastasis.3. No evidence of intracranial lesions.