Role of Computed Tomography and Magnetic Resonance Imaging in Orbital Tumors with Histopathological Correlation
Journal Title: International Journal of Contemporary Medical Research - Year 2016, Vol 3, Issue 1
Abstract
Introduction: CT and MRI when performed separately or in combination, will complement each other and provide exact diagnosis. Aim of the study was to evaluate efficacy of CT in orbital tumors and role of MRI to assess thenature, anatomical extent, morphology and aid in decision making for choiceof treatment, and to correlate with histopathological diagnosis. Materials and methods: It is aprospective study of CT and MRI evaluation of Orbital tumors withhistopathological correlation was conducted on 35 patients with a suspicion ofhaving orbital lesion. Results: 17 were male and 18 were female patients. Mild female preponderance is seen with Maximum number of the patients was under 9years. Proptosis is the most common clinical presentation noted in 26 cases (74.3%). The most common tumor in the adult age group was Optic nerve meningioma and in the pediatric group was retinoblastoma, MRI can better differentiate the pseudotumor from lymphoma, by showing the involvement of tendinous part of extraocular muscles, orbital fat stranding and reactive inflammation of sclera. In all the tumors, involving the optic nerve, MRI clearly showed the extent of the lesion and morphology. Except in one case, diagnosis in all the other cases was correlating with histopathological diagnosis. Conclusion: CT and MRI when performed in combination will complement each other and provide correct diagnosis. MRI was superior to access nature, anatomical extent and morphology. Diffusion weighted image and aapparent diffusion coefficient offer a useful additional parameter that can differentiate malignant tumours from benign lesions with high sensitivity and specificity
Authors and Affiliations
P. Sree Hari, Praveen Kumar Alle
Keywords
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