Background: Maxillary sinus although shows normal anatomical variations and it is important to know about them. Evaluating maxillary sinus and identifying its variations on Computed Tomography not only detects the different variations but also helps in planning and guiding Various Sinus Surgery and preventing possible complications. Purpose: Aim of this study was to detect anatomical variations of maxillary sinuses in patients using Multi-detector Computed Tomography. Materials and Methods: Paranasal sinuses of 130 patients who were subjected to Computerised Tomography of Paranasal Sinus with CT (Seimens 128 slice Somatom Perspective) machine were studied. Results: A total PNS Para Nasal Sinuses of total 130 patients were studied. Out of which only 36 patients had maxillary sinu variations. Among accessory ostia of maxillary sinus was the commonest anatomical variation and was seen in 23 (18%) of cases. Hyperpneumatization of maxillary sinus was detected in 7cases (5%) and Antral septa were found in 13 cases (10%). Conclusion: Thus, it's important to accurately assess the maxillary sinus on Computed Tomography and to determine the various anatomical variations of the same so as to differentiate pathological lesions from an anatomical variation and avoiding unnecessary surgical explorations and complications.

Background: Menisci transmit the forces across the joint and cushion the mechanical loading of the joint. Thus, it is important to identify meniscal tear. A thorough understanding of normal meniscal anatomy and surrounding structure is critical for diagnosis. Magnetic resonance imaging is the current modality of choice providing fine resolution and multi-planar imaging for identifying the meniscal injuries and the various pattern of tear, helping to plan the subsequent management. The purpose of the work was to study the role of MRI in classifying the meniscal injuries.Methods: MRI Knee of 136 patients with meniscal injuries was studied. All the MR imaging scans were performed on 1.5-T MR system (Siemens magnetom Essenza).Results: A total of 136 patients were studied in which majority of the patient’s i.e.  90.44 % had medial meniscal tear while 18.38 % patients had lateral meniscal tear. Both medial and lateral meniscal tears were found in 8.82 % patients. Among the different types of tears, horizontal tear was the most common tear in both medial and lateral meniscus comprising 52.8 % and 52 % respectively. The tears being most common in the age group 41-50years. There were associated injuries to the other ligaments of the knee joint along with meniscal tear, ACL tear being the most common and was seen in 50% of patients.Conclusions: MRI is a good modality for classifying meniscal injury and evaluation of injuries to the associated ligaments. Secondary signs are good predictors of underlying meniscal tear in equivocal cases.

Background: Pancreatic neoplasms have highly variable clinical presentation and severity. Computerized Tomography (CT) is the modality of choice for investigating pancreatic neoplasms. Objectives: The objective of our study was to study the CT findings of pancreatic neoplasms in a tertiary care centre. Materials and Methods: CT scan of 20 patients with pancreatic neoplasms were studied after scanning on Siemens Somatom Perspective (128 slice). Results: Majority of the patients i.e., 45% had imaging features of epithelial tumours (Adenocarcinoma). Cystic neoplasms and endocrine tumours were the next most common seen in 30% and 15% of patients respectively. Conclusion: From this study we can infer that pancreatic neoplasms show characteristic findings on CT study & it enables us to assess, grade and stage pancreatic neoplasms with a fair degree of reliability non-invasively. It also helps in designing a management plan for better patient care.

Introduction: Magnetic Resonance Cholangiopancreatography (MRCP) is a non-invasive and important imaging modality useful for study of pancreas and biliary system using advanced rapid imaging and invention of new sequences for pancreatic and biliary ductal system. Aims and Objectives: To study role of Magnetic Resonance Cholangiopancreatography (MRCP) finding in various pancreatico-biliary pathologies. Results: Total 60 cases were studied with various pancreatico-biliary conditions. Variety of study showed that 37(62%) out of 60 cases were encountered with biliary pathologies followed by pancreatic lesion in 17(29%) cases and pancreatic-biliary lesions were present in 6 (9%) cases. Among the lesions, most common cases were of obstructive etiology in 24(40%) followed by inflammatory condition in 21(36%), congenital lesions in 7(11%), neoplastic lesions seen in 6(10%) and strictures in the 2 (3%) cases. Conclusion: According to our study, MRCP is an advanced and noninvasive diagnostic imaging of choice for the pancreatico-biliary lesions.

Introduction: Cerebral venous thrombosis is an uncommon disorder commonly seen in young, earlier this incidence was likely underestimated before the introduction of much accurate & non-invasive imaging modality. Now it has estimated that five to eight cases may be seen per year at a single tertiary-care center. Accurate and prompt diagnosis of cerebral venous thrombosis is crucial; because timely and appropriate therapy can reverse the disease process and significantly reduce the risk of acute complications and long-term sequelae. Since the possible causes and clinical manifestations of thrombosis are multiple and varied, imaging plays a primary role in the diagnosis. A wide range of cross-sectional imaging methods and venographic techniques can be used to detect abnormalities in the brain parenchyma as well as the cerebral veins and venous sinuses. Materials and Methods: In this study so far 50 patients have been prospectively taken with suspicion of intracranial vascular lesions & were referred to radiology department for MRI Brain with venography irrespective of age and sex. The study has been conducted taking up 50 patients as per the eligibility criteria with written informed consent. Siemens Magnetom Essenza 1.5 Tesla machine was used for the study. Multi-sequential study in coronal, sagittal and axial sections was taken. Results: This study provides a survey of common clinical findings in suspected cases of cerebral venous thrombosis and in several other disorders that may include a venous thrombotic process as a component. The normal venous anatomy has also been reviewed and potential pitfalls related to image interpretation are described. Conclusion: Finally it was concluded from this study, that majority of the patients diagnosed on MR imaging; were seen to be affected with intra-cerebral veins thrombosis. This study proves MR Venography as standard modality in establishing the early diagnosis of CVT in correlation with non-specific clinical findings.