Disease processes in the peritoneum, omentum and mesentery: diagnosis with CT, a retrospective study

There is a wide range of pathological conditions that affect the peritoneum, mesentery and omentum that are frequently unrecognized on CT images. It is important for radiologists to be aware of these entities and their potential apearances. Not uncommonly, many of these disease processes appear similar on images, and many require a biopsy or fluid sampling to establish the diagnosis. In this study we review the diagnostic features of some of these pathological entities

Diagnostic value of CT in pancreatic carcinoma a retrospective study

Abdominal CT scans for 15 patients proved to have carcinoma of the pancreas were revised. The main primary CT features were, the presence of a mass lesion and assocaited dilated common bile duct and/or pancreatic ducts. Secondary features of malignancy were surface irregularity, organ invasion, lymph node enlargement and liver deposits. CT is valuable in diagnosis of the presence of the tumour, its site and size and staging of pancreatic carcinoma. Also CT helps in tumour resection after demonstrating its size

Intracranial meningiomas: MRI and CT study

CT and MR imaging of 15 intracranial meningiomas were retrospectively reviewed. CT before and after IV contrast administration was accurate in intracranial meningiomas detecting the density of the lesion, oedema and calcification which occurs in meningiomas depending on the pathological nature of the tumour. With careful observation, visualization of subtle abnormalities allow MR to approach the same accuracy as CT in the detection and categorization of these tumours. Isointensity which is more common on TI can be solved by the administration of MR contrast, since almost all meningiomas show contrast enhancement. The most useful MR characteristics for identifying meningioma Include inward displacement of cortical gray matter, broad base against the dural surface and pseudocapsule of displaced vessels or CSF. The pathological enhancement beyond meningioma after administration of the contrast represents reactive changes to the neoplasm and does not necessarily indicate neoplastic Involvement

Diagnostic aspects of renal masses a retrospective study

Imaging diagnostic modalities as ultrasonography and computed tomography beside the conventional urographic procedures were used to study 15 different mass lesions. The value of those different diagnostic modalities was determined with their accuracy and relative merits

Diagnostic value of CT in pancreatic carcinoma a retrospective study

Abdominal CT scans for 15 patients proved to have carcinoma of the pancreas were revised. The main primary CT features were, the presence of a mass lesion and assocaited dilated common bile duct and/or pancreatic ducts. Secondary features of malignancy were surface irregularity organ invasion, lymph node enalrgement and liver deposits. CT is valuable in diagnosis of the presence of the tumour, its site and size and staging of pancreatic carcinoma. Also CT helps in tumour resection after demonstrating its size

Accuracy of ct in diagnosis of lumbar disc herniation

86 patients with intervertebral degenerative disc lesions were included in this study. 60 were examined by plain CT, 20 out of the 60 cases were followed by water soluble lumbar myelography. The operative data were available in 56 patients. These cases were evaluated for CT appearance of the herniating intervertebral discs with accuracy of plain CT in the diagnosis of herniated nucleus pulposus [HNP]. 26 patients were examined by lumbar myelography [LM] followed by CT myelography [CTM] with evaluations of both techniques in diagnosis of disc lesions

Hepatic abscess at computed tomography and ultrasound

10 cases suffering from primary and secondary hepatic abcesses were examined sonographically and by CT. The sonographic findings were pointed out and correlated with CT results. CT guided liver needle aspiration was performed in some cases

Role of CT in inflammatory lesions of lumbo sacral spine

Ten cases of pyogenic and tuberculous osteomyelitis of the lumbo sacral spine were included in this work [5 cases as T.B. osteomyelitis and 5 cases as pyogenic osteomyelitis]. CT appearance of the inflammatory changes of the spine was studied. The diagnostic yieId of CT and conventional plain radiography was compared. The place of CT in diagnostic of the site and extension of the inflammatory process into the epidural and paraspinal regaions was attempted

Computed tomography of acoustic neuroma

Despite a variety of clinical testes of acoustic tumour, a definitive diagnosis can only be made by radiology. Evaluating the IAM by plain X-ray tomography is the essential primary examination. Computed tomography with intravenous contrast is a necessary prelude to air meatography as large tumours are not satisfactorily demonstrated by meatogaphy as large tumours are not satisfactorily demonstrated by that technique and there may be risk for obstructive hydrocephalus. Seven cases are included in this study. The results of examination by CT were analysed as regard the side, site and enhancement of the lesion in addition to the sensitivity of this modality in detection localization and definition of the lesion