Abstract

Single ring enhancing computed tomography lesions is commonly seen in clinical practice, since from discovered in the late 1970s due to invention of Computed Tomography (CT) of the brain. The advent of CT was made a great impact on medicine because it creates the detail anatomical image. This gives the precise location of slice, soft tissue, revealing bones, organs, brain and blood vessels. Contrasted image of the CT scan enhance the lesion and enables to evaluate the images better. It also helps in accurately localizing the site of lesion and types of lesion in a cost-effective manner as compared to Magnetic Resonance Imaging (MRI). A Prospective study of 25 patients satisfying the inclusion criteria attending OPD and inpatients of Medicine, Neurology, Neurosurgery departments were included in the study. CT is the most sensitive modality in the characterization of single ring enhancing lesions. In this study, single ring enhancing lesions seen are Neurocysticercosis (28%), Tuberculoma (24%), abscess (20%), followed by Toxoplasmosis (8%), Neurosyphilisis (4%), metastasis (4%), maligancy (8%) and CNS lymphoma (4%). Finally, it is concluded that the various clinical aspects in diagnosis of single enhanced ring do not correlate exactly with CT scan findings in all cases. Hence both thorough clinical examination and CT Scan Brain are mandatory.

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