Male, 56 years old, with nocardiosis, on therapy for seven months. Assess for lesion progression. Edema in the right occipital lobe has improved. There remains evidence of an underlying lesion or lesions this location which are partially diffusion restricting and partially susceptibility inducing which could reflect either chronic hemosiderin deposition or mineralization.A lesion in the right centrum semiovale which is mildly diffusion restricting but which does not cause significant surrounding edema is unchanged when compared to the immediate prior examination, and smaller when compared to older exams. A very small focus of abnormal T2 signal and susceptibility in the left superior frontal gyrus is unchanged as well.No other diffusion restricting or edema producing lesions are seen. No other areas of significant susceptibility effect are demonstrated. There are numerous scattered foci of nonspecific T2 hyperintensity within the cerebral white matter. Ill-defined signal abnormality also persists within the dorsal pons and medulla. No abnormal extra-axial collections are seen. The ventricles are stable in size and morphology.An opacity is unchanged involving the left ostiomeatal unit and adjacent nasal cavity. Bilateral globe staphylomas are seen.
1.Continued interval reduction of edema in the right occipital lobe likely related to one or more underlying lesions.2.Additional non-edematous lesions in the right centrum semiovale and left superior frontal gyrus are unchanged.3.No new or progressing lesions are seen.