Rim enhancement of breast lesions at MR imaging is due to a combination of angiogenesis, distribution and degree of fibrosis, expression pattern of VEGF, and various histologic features.
Sclerosing stromal tumor is a rare ovarian neoplasm. We describe the radiologic findings of sclerosing stromal tumor in two patients. In both patients, MR and CT images showed a large mass in the left adnexal region. On dynamic contrast-enhanced images, the tumors showed early peripheral enhancement with centripetal progression.
In order to evaluate the diagnostic performance of cancer screening using whole-body (18)F-fluorodeoxyglucose positron emission tomography (FDG-PET) scanning for asymptomatic subjects, we conducted a historical cohort study. The study group comprised 5807 individuals who underwent PET scanning from 2002 to 2003. Each subject had carried out a procedure with whole-body (18)F-FDG-PET scan with some other diagnostic tests. Out of 5807 participants, data from 4881 subjects were analysed. Among them, PET screening revealed abnormal FDG uptake in 562 subjects, and possible or probable malignancy in 324 subjects, and histological diagnosis of cancer in 36 subjects (16 thyroid, seven colon, four lung, five breast, two prostate, and two others) out of them. The overall cancer detection rate was 0.7%, and PET scanning had a sensitivity of 70.6% and a specificity of 94.0%. This result warrants further prospective cohort studies to evaluate the usefulness of PET cancer screening for cancer prevention.
Wereport a case ofobstructivejaundice caused by a large hepatic cyst whichwas successfully treated by percutaneous drainage and instillation of minocycline hydrochloride. An 88-year-old man presented with obstructive jaundice and upper abdominal fullness. Abdominal CT and ultrasonography revealed a large hepatic cyst and intrahepatic bile duct dilatation. After the percutaneous drainage of the cyst, minocycline hydrochloride was instilled as a sclerosant via a catheter into the cyst cavity. Liver enzymelevels returned to normal and thejaundice disappeared. Nine months after the treatment, the large cyst and dilatation of the intrahepatic bile duct had disappeared. The patient has remained healthy without symptoms.
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