CT FINDINGS OF MALIGNANT NEOPLASTIC MASSES OF SMALL AND LARGE INTESTINE WITH HISTOPATHOLOGICAL CORRELATION: A CROSS SECTIONAL STUDY

Abstract

AIMS AND OBJECTIVES: To formulate an appropriate scanning protocol technique to evaluate malignant neoplasm of small and large intestine. To dene various CT ndings in malignant bowel neoplasm. To stage bowel neoplasm. To accurately characterize the tumour by histologic type as far as possible. Materials And Methods: In our cross-sectional study, 76 cases of small and large bowel carcinoma were referred to radiology department. After taking informed consent, CECT abdomen of the patients was done. All these patients went for surgical excision of the neoplastic mass; and the mass were sent for HPE examination. Epidemiological data, clinical features, CECT abdominal features were correlated with HPE type of the mass were found out. P-Value<0.05 was considered to be statistically signicant. Results: In Small bowel, ileum was the commonest site of involvement (5.26%), whereas sigmoid colon and rectum (18.42%) was commonest site of involvement in large bowel. Adenocarcinoma was the commonest histological subtype seen in 54 patients (71.05%), followed by lymphoma in 14 patients (18.42%), Mucinous Adenocarcinoma seen in 5 patients (57.5%). and gastrointestinal stromal tumor [GIST] seen in 3 patients(3.94%). Conclusion: Common CT imaging features in malignant bowel neoplasm are bowel Wall thickening >2cm,short Segment Involvementand heterogeneous mixed pattern. Although CT has a high specicity for detection of a metastatic lymph nodes, sensitivity is low.Liver is the commonest site of distant metastasis in malignant bowel neoplasm. Helical CT is a noninvasive, reliable, and accurate technique for imaging the liver and should be considered as the standard preoperative work-up of hepatic metastases from bowel malignant.