Role of MRI in Evaluation of Orbital Mass Lesions with Ultrasonographic and Histopathological Correlation
Journal Title: International Journal of Medical Research Professionals - Year 2017, Vol 3, Issue 2
Abstract
Background: The orbital pathologies now-a-days are rising, which is probably attributed to the increasing awareness to the clinical symptoms, better availability of health care facilities along with newer advanced diagnosis and treatment options. Most of the masses affects the sensory and motor visual pathways. Early diagnosis with institution of early treatment is required to prevent patient sufferings due to vision problems or permanent vision loss. Aims: The aim of this study was to diagnose, characterize & define the extent of various orbital mass lesions, to differentiate between benign & malignant lesions, to correlate the sensitivity and specificity of MRI findings with Ultrasound and the histopathological diagnosis and to assess its role in the management of patient affected by orbital mass lesions. Material & Method: In this prospective study, the patients clinically suspicious of orbital mass lesions had undergone orbital B-scan examination using Philips HD7XE & SEIMENS ACCUSON USG machines via high frequency probes, and on revelation of mass in B-Scan, all these patients were then subjected to MRI of the orbit with brain sections for further characterization of the mass lesion. MRI study of 40 patients having orbital mass lesions was conducted from the period of March 2015 to September 2016 using GE 3 tesla, 97 channel, magnetic resonance imaging machine, in the department of Radio diagnosis, Mahatma Gandhi Memorial Medical College & M.Y.H. hospital at KRSNA diagnostic center, Indore, Madhya Pradesh. Subsequent follow up had been done along with biopsy correlation as the reference standard. Result: In our study 28% of orbital lesions were classified as inflammatory, 15% lesions were benign and the remaining 57% of orbital lesions were classified as malignant lesions. Among the inflammatory lesions thyroid orbitopathy and pseudo tumor were the most common inflammatory orbital lesions. Cavernous hemangioma was the most common benign orbital mass lesion in our study followed by optic nerve glioma. Retinoblastoma was the most common malignant lesion in our study constituting 25% of the total orbital lesions followed by rhabdomyosarcoma. Conclusion: The sensitivity and specificity of MRI was higher than USG for detection of malignancy. DWMRI imaging alone may lead to misdiagnosis of lesions as inflammatory lesions also depicts restricted diffusion. Hence, MRI along with DWI is a very valuable noninvasive tool for the Identification, characterization and differentiation of orbital mass lesions.
Authors and Affiliations
Rakesh Vijayvargiya, Amaresh Kumar Shukl
Keywords
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- EP ID EP543955
- DOI 10.21276/ijmrp.2017.3.2.032
- Views 78
- Downloads 0
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