George L. Popky

Hernias of the ureter.--An anatomic-roentgenographic study.

Four cases of herniation of the ureter are presented. A discussion of the various types of ureteral hernia is based on the roentgenographic features of each type as well as the anatomical considerations responsible for these radiographic signs. The use of erect and oblique projections in patients with hernias undergoing urography is urged. The sign of the curlicue ureter is felt to be pathognomonic for ureteral hernia.

Roentgenographic Manifestations of Spontaneous Renal Hemorrhage

The causes of nontraumatic renal hemorrhage are reviewed and the roentgenographic criteria for distinguishing intrarenal, subcapsular and perirenal types outlined. A statistical analysis of 22 cases is presented: 10 were caused by tumors, some undetectable roentgenographically. Surgical exploration of the kidney is recommended in all cases of spontaneous renal and perirenal hematoma, if all medical causes for bleeding can be excluded.

Simple serous cysts of the kidney in children.

Simple renal cysts and reported in 9 children. Two children presented with hematuria following trauma and the cyst was demonstrated on the initial excretory urogram. The other 7 had cysts found on excretory urograms in be course of evaluation of various urologic complaints. The diagnostic approach used was identical to that advocated for adults, namely, percutaneous needle puncture once a solid renal mass has been excluded by an appropriate screening procedure such as ultrasonography. These cysts are benign lesions similar to cysts in adults and are probably more common than the few reported cases would suggest.

External auditory canal dysplasia: CT evaluation

Dysplasias of the external auditory canal can be evaluated with high resolution CT using proper technique. Images are studied to determine the type of atresia (membranous or bony) nnd the thickness of the associated atretic plate (if present). Other findings sought include the degree of pneumatization, the status of the fenestrae, the size of the tympanic cavity, and the location of both the mandibular condyle and the facial nerve canal.

The foramen ovale MR and CT correlation

Six patients with lesions involving the foramen ovale are presented and analyzed. Anatomy, pathology and imaging of diseases occurring in the vicinity of the foramen ovale are reviewed. Computerized tomography (CT) and magnetic resonance imaging (MRI) are complimentary in the evaluation of pathology in this region. CT is better able to evaluate bony detail while MR imaging is useful in detailing the anatomical extent and tissue characteristics.

Abdominal masses in the neonate: A multiple modality approach to diagnosis

In the evaluation of abdominal masses in newborns, the sequential use of ultrasonography and renal scintigraphy usually establishes a diagnosis within 24 hours.