[Erroneous interpretation in urinary bladder angiography]

Angiography in vesical and perivesical neoplastic and non-neoplastic lesions

Seven cases of neoplastic and non-neoplastic lesions involving the urinary bladder and perivesical tissues are presented. Each of the described lesions may have nonspecific angiographic appearances and hence angiography does not permit a specific diagnosis to be made. The primary object of performing angiography is to localize the lesion and identify the vascular supply.

Vascular and morphological changes in the urinary bladder wall after irradiation

Twelve adult rabbits were used to study radiation-induced changes in the urinary bladder by angiographic, microangiographic, light microscopic and scanning electron microscopic methods. Angiographic, microangiographic and light microscopy examinations were performed on 2 animals in which the urinary bladders were not irradiated and on 4 animals in which parts of the bladders received high radiation doses of 60Co. The bladders irradiated in this manner exhibited advanced changes within a shorter time after irradiation than those in an earlier study. In this study a lower dose of irradiation was given over the entire bladder. Otherwise, the radiation changes were similar. Light and scanning electron microscopic studies were carried out on 2 normal and 4 irradiated bladders. In the latter, atrophy of the mucosa, epithelial desquamation, cellular atypisms and ulcerations were observed.