Pneumocystis Carnii-CT

The hallmark finding of PCP on HRCT scans is ground-glass attenuation, which is present in more than 90% of patients and represents an exudative alveolitis. The term ground-glass refers to parenchymal opacification, which does not obscure the underlying pulmonary architecture. This usually occurs in a bilateral, symmetric, predominantly perihilar distribution and may be geographic or mosaic in appearance, with areas of normal lung adjacent to areas of affected lung. Thickening of interlobular septa (due to edema) and foci of consolidation may be associated.

Reported by Teleradiology Providers

Progressive Multifocal leucoencephalopathy (PML)-MRI

This is a case of known case of AIDS (46yr old male) on Antiretroviral therapy, who developed right sided weakness and memory loss. MRI reveals T2/FLAIR left parietal hyperintensity with diffusion restriction on DWI. There is involvement of splenium of corpus callosum. No post gadolinium enhancement was seen. There was subtle mass effect. Diagnosis of Progressive Multifocal leucoencephalopathy was made (PML). Relative lack of mass effect, non enhancing nature and classical location are points in favor of the diagnosis.

Dr.Sumer K Sethi, MD

Sr Consultant Radiologist ,VIMHANS and CEO-Teleradiology Providers

Editor-in-chief, The Internet Journal of Radiology

Director, DAMS (Delhi Academy of Medical Sciences)