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Cystic lesions of the retroperitoneum can be classified as either neoplastic or nonneoplastic. Neoplastic lesions include cystic lymphangioma, mucinous cystadenoma, cystic teratoma, cystic mesothelioma, müllerian cyst, epidermoid cyst, tailgut cyst, bronchogenic cyst, cystic change in solid neoplasms, pseudomyxoma retroperitonei, and perianal mucinous carcinoma. Nonneoplastic lesions include pancreatic pseudocyst, nonpancreatic pseudocyst, lymphocele, urinoma, and hematoma. Because the clinical

Our results suggest that MRI may be useful in the diagnosis of tailgut cyst. A multilocular cystic mass in the presacral space is a characteristic MRI finding of tailgut cyst, which may also be revealed as a cystic mass consisting of a large cyst accompanied by a small peripheral cyst. However, further studies are necessary to establish the usefulness of MRI for evaluating tailgut cysts.

The 64 MDCT is a promising technique for the detection and preoperative staging of gastric cancer.

Although there was substantial overlap of sonographic findings in the various inguinal masses, clinical history and certain sonographic details can assist in making the correct diagnosis.

Some clinical findings, gray-scale sonography, and color Doppler sonography were useful in differentiating tuberculous epididymal abscess from pyogenic epididymal abscess. The presence of long-term scrotal swelling without tenderness and a lower degree of blood flow in the peripheral portion of a large abscess are suggestive of tuberculous epididymal abscess.

Ultrasonography may be helpful for the diagnosis of ovary-containing hernias of the canal of Nuck by detecting solid masses containing small cysts.

Gray scale and color Doppler sonography may be helpful in the diagnosis of torsion of the appendix testis. A size of 5 mm or larger, spherical shape, and increased periappendiceal blood flow are indicative of a torsed appendix testis.

Hepatic capsular retraction adjacent to hepatic tumour is rare, although this finding has been described in a variety of malignant tumours and haemangioma. The authors have seen various causes of hepatic capsular retraction associated with hepatic tumours, including a variety of malignant tumours, haemangioma and post-treatment of malignant tumours, as well as cases not associated with a hepatic tumour, including confluent hepatic fibrosis, oriental cholangiohepatitis and bile duct necrosis. Fur

Localized Intestinal Lymphangiectasia: CT FindingsDal Mo Yang1 and Dong Hae Jung2Audio Available | Share

We report the sonographic, CT, and MRI findings in a case of focal fatty infiltration of the pancreas. Sonography revealed an echogenic mass in pancreas head. On CT, the mass was hypodense. The mass showed same signal intensity to the surrounding normal pancreas on in-phase T1-weighted MR images and a loss of signal intensity on opposed-phase MR images.

Treatment of MSU-1.1 cells, a near-diploid, karyotypically stable, infinite life-span human fibroblast strain, with (+-)-7 beta,8 alpha-dihydroxy-9 alpha,10 alpha-epoxy-7,8,9,10-tetrahydrobenzo[a]pyrene induced focus formation. Eight independent foci were isolated and the cell strains developed from them were examined for characteristics of malignant cells. Each grew to a higher density in medium containing 1% serum than did the MSU-1.1 cells. Three of the eight grew rapidly in serum-free medium

OBJECTIVE: To determine whether focal epididymal lesions can be differentiated on gray scale sonographic, color Doppler sonographic, and clinical features. METHODS: This was a retrospectiveanalysis of 60 focal epididymal lesions in 57 patients. Focal epididymal lesions were classified into 3 groups: nonspecific epididymitis (n = 43), tuberculous epididymitis (n = 10), and benign epididymal masses (n = 7). The following gray scale sonographic, color Doppler sonographic, and clinical features were