CT Findings of the Pulmonary Tuberculosis in Patients with Diabetes Mellitus

PURPOSE: To evaluate the CT findings of pulmonary tuberculosis in patients with diabetes mellitus (MD),according to the diabetic control state. MATERIALS AND METHODS: We retrospectively studied 34 cases of pulmonarytuberculosis accompanied by DM. We divided the right lung three lobes and ten segments and the left into two lobesand eight segments and analyzed CT findings of bronchogenic spread, cavitary lesion, ill-defined nodule, lobularconsolidation, lobar and segmental consolidation, atelectasis, interlobular septal thickening, fibrotic band, andassociated findings such as lymph node enlargement, pleural effusion and empyema. We also tried to determine thetypical CT findings of pulmonary tuberculosis according to diabetic duration and controlled state of DM focusingby FBS 160 and HbA1C 8.0. RESULT: Among 34 CT scans, bronchogenic spread was seen on 29 (85.3%), cavitary lesionon 26 (76.5%), ill-defined nodules on 11 (32.4%), lobular consolidation on 14 (41.2%), lobar and segmentalconsolidation on 12 (35.3%), atelectasis on four (14.7%), and fibrotic band on eight (23.5%). Multiple cavitieswere present in 76.9% of total cavitary lesions, and consolidation with bronchogenic spread in 75%; associatedfindings were as follows: lymph node enlargement (n=1), pleural effusion (n=10), empyema (n=2), and pericardialeffusion (n=2). In 46.7% of cases, general tubercular lesions were in an unusual location, but among cases ofsecondary pulmonary tuberculosis, 73.9% of lesions were in the usual location. More lobular consolidation was seenin patients with less than FBS 160 on admission, and this result was statistically significant (p<0.05); CTfindings did not, however, differ according to diabetic duration and HbA1C. CONCLUSION: In patients with DM,general fubercular lesions were found infrequently, but in secondary tubereulosis, multiple cavitary lesions-inthe usual location-were very frequent. In patients with DM, CT findings of pulmonary tuberculosis did not varyaccording to the diabetic control state, except that in patients with less than FBS 160 on admission, there was agreater degree of lobular consolidation.

Dumbbell-shaped Epidural Cavernous Hemangioma: A Case Report

It has been reported that cavernous hemangiomas in the spine are generally located in vertebral bodies. Wereport a case of epidural cavernous hemangioma, a very rare condition, at the C7-T2 level. MR images showed adumbbell-shaped mass, with iso and high signal intensity on T1- and T2-weighted images, respectively. The mass wasintensely enhanced following Gd-DTPA injection.

Chronic Subdural Hematoma Secondary to Traumatic Subdural Hygroma

PURPOSE: Sometimes chronic subdural hematoma can be developed following posttraumatic subdural hygroma. The purpose of this study is to investigate its incidence, the duration required for their conversion, and characteristic CT and MR findings of subdural hygroma and chronic subdural hamatoma. MATERIALS AND METHODS: We studied 8 patients with persistent posttraumatic subdural hygroma which consquently developed chronic subdural hamatoma. The patients were examined with CT initially and foilowed-up with CT in 3 and MR in 5. We analyzed the location of the lesion, the change of the density or signal intensity, the change of the size, and the degree of enhancement and mass effect. RESULTS: The duration required for the formation of hematoma was 48-166 days (mean, 76 days). The characteristic CT findings of subdural hygroma were a crescentric lesion with CSF density along the inner table without contrast enhancement. The mass effect was minimal. The CT findings of chronic subdural hematoma were higher density than that of hygroma in all cases, increase in thickness and size in 3 cases, and contrast enhancement along the inner membrane of the hematoma in 5 cases. The signal intensities of the subdural hygroma were identical to those of CSF on both T1 and T2 weighted images, whereas, those of chronic subdural hematoma were higher. CONCLUSION: The increased signal intensity on T1 weighted MR images and increased attenuation or contrast enhancement of the lesion on CT may suggest the conversion of subdural hygroma into chronic subdural hematoma.

Radiologic Reevaluation of the Ampulla of Vater Cancer

Objective: To evaluate the radiographic characteristics of the ampulla of Vater cancer. Subjects and Methods:The authors analyzed retrospectively the US(n=25) and CT(n=15) findings in 25 cases of ampulla of Vater cancer, with emphasis on the potential of CT & US in regand to the detectibility of the mass. ERCP(n=15) and hypotonic duodenography(n=5) were also evaluated for the configuration of obstructed duct. RESULTS: The tumor was detected on sonography in only 12 cases(48%) as a small, relatively well delinated mass with slighty low echogenicity to the pancreas. The tumor was shown by CT in 8 cases(53% ) as a well delinated mass protruding into the second portion of duodenal lumen with slightly low attenuation to the pancreas. CBD was dilated in 25 cases(100%), but pancreatic duct was dilated in 15 cases(60%). Obstructed end of CBD was nipple shaped in 7 cases(47%), clubbed in 3, flat in 3, and indistict in 2 by ERCP. Hypotonic duodenogram showed irregular filling defect in the medial wall of second portion of the duodenum in 5 cases (100%). CONCLUSION: Mas detection rate crsing US or CT were not high in ampulla of Vater cancer. Except for a CT finding of a small mass protruding into the regional duodenal lumen, other finclings were nonspecific. Therefore, additional studies or more afgressive approach should be attempted for a correct diagnosis.

A study of individual identidual identification by roentgenographic characteristics of long bones in humen

Individual identification procedure is one of the most improtant part in medicolegal fields. Recently, radiolegal investigation methods have been widely applicated to the medicolegal field for the purpose of individual identification. So authors attempted to determine sex and calculate stature by using roentgenographic findings of long bones of 248 subjects the living materials. In orthoscanographic study for long bones, we measured total length, midshaft width, epiphyseal width, cortical width, head diameter of each bones The total length, midshaft width, cortical width, condylar breath, horizontal & vertical head diameter of femur show statistically significant differentiation between two sexes, in tibia, total length, midshaft, cortical width, proximal and distal epiphyseal width show statistically significant. In fibula, Humerus, radius and ulna, total length is only statistically significant. And other wresults are statistically insignificant. Using femoral and fibial lengths (mm) with "Regression Analysis method" in SAS program, we derived the following fomulae. Height (cm)=95.62±0.148×Total length of Femur. (mm) Height(cm)=82.07±0.22×Total length of Tibia. (mm). In conclusion, radiologic measurement of long bone might be one of the useful methods in individual identification of unknown subject in Korea.

Epicardiac fat lump in the left atrioventricular groove: CT and MR findings

Fat can be prominet around the aortic root and within the right atrioventricular (AV) groove (1). At times, the fat can be globular, suggesting a mass especially on echocardiography. Computed tomography (CT) and masnetic resonance (MR) images are well suited for characterization of fat in and around the heart (1, 2). This report illustrates CT and MR findings of a very unusual case of prominent fat lump in the left AV groove.