Richard M. Friedenberg

RADIOGRAPHIC ATLAS OF THE GENITOURINARY SYSTEM

RADIOGRAPHIC ATLAS OF THE GENITOURINARY SYSTEM , RADIOGRAPHIC ATLAS OF THE GENITOURINARY SYSTEM , کتابخانه مرکزی دانشگاه علوم پزشکی ایران

Normal Renal Parenchyma Simulating Tumor

The initial enthusiasm for angiographic differentiation of renal tumor and cyst has matured into an attempt to differentiate a broad spectrum of medical and surgical lesions of the kidney. Pathologic lesions that mimic tumor, such as xanthogranulomatous pyelonephritis, abscesses, tuberculosis, and fibrolipomatosis, have been described with increasing frequency (1, 2, 6, 7). Marginal lobulations of the kidney, which may mimic tumor in normal kidneys, have been reported (4). Mass lesions of hypertrophied parenchyma or local nodular areas of residual normal parenchyma in diseased kidneys represent another form of pseudo-tumor. Unnecessary surgery, which could have been avoided by proper interpretation of the renal angiogram, has been performed in such instances. Case Reports Case I: A 47-year-old female was admitted to The Bronx-Lebanon Hospital Center with left flank pain and pyuria. There was an antecedent history of pyelonephritis extending back to childhood. A urogram revealed atrophic pyelonephritis bil...

Various Applications of Corpus Cavernosography

The authors believe corpus cavernosography is an important aid in the evaluation of metastatic lesions, priapism, impotence, atrophy and fibrosis of the penis, and trauma to the penis. By visualizing the emptying of the contrast material from the cavernous spaces into the veins draining the penis, it is possible to assess the length of time that the contrast material remained in the organ.

The radiographic findings in neurogenic bladder.

Numerous articles have documented the clinical symptomatology and the many causative factors associated with neurogenic lesions affecting the bladder, but the associated radiographic findings (1) have been infrequently and often incompletely presented. Among the more common causes of neurogenic bladder are such entities as trauma with damage to the spinal cord or cauda equina, congenital lesions such as spina bifida, multiple sclerosis, syphilis, diabetes mellitus, and neoplasm. The clinical picture varies, depending on the severity of the lesion and its level. In some cases there will be urinary retention with associated overflow incontinence. In other instances there may be total loss of urinary control, with inability to initiate or inhibit the stream, continuous dribbling, or involuntary evacuation of urine at regular intervals. The radiographic findings associated with neurogenic bladder are caused directly by the neuromuscular effects of the neurogenic lesions on the bladder and sphincters and indir...

Arterial encasement in xanthogranulomatous pyelonephritis.

A case of xanthogranulomatous pyelonephritis is reported in which arterial encasement was demonstrated. Pathologic correlation is shown.

The Effect of Renal Lymphatic Ligation on Kidney and Blood Pressure

This experiment was designed to study the effect of renal lymphatic ligation on renal function and blood flow and to evaluate the sensitivity of the urogram and angiogram as a baromet er of the changes so produced. The effect on systemic blood pressure and an analysis of the probable mechanism for bypass of the obstructed lymphatics are also reported. As a preliminary to this study, male mongrel dogs were subjected to intravenous urography, renal angiography, and three blood pressur e determinations. Five animals which exhibited no abnormality in these paramet ers were employed in the experiment . The lymphatics were visualized by pyelolymphatic backflow. This was produced by the inj ection of a small amount of Sky Blue into the proximal ureter while the ureter was elevated by a probe immediately below the point of injection to temporarily increase the intrapelvic pressure. All the visualized lymphatic trunks were ligated at the renal hilus by clips or fine silk sutures. In some animals, capsular lymphati...

ANEURYSM OF THE LEFT GASTRIC ARTERY: PREOPERATIVE ANGIOGRAPHIC DIAGNOSIS.

Although to date 131 aneurysms of the hepatic artery and celiac axis (excluding the splenic artery) have been reported (5, 15), no record has been made of planned, preoperative, angiographic diagnosis of a suspected aneurysm of these vessels. Schatzki (17) stated that preoperative diagnosis of such a lesion is usually not possible. Aneurysms specifically arising from the left gastric artery have not been previously described in the radiologic literature and are mentioned only four times in the world literature (2, 3, 10, 14). Recently, because of the relative ease of contrast visualization of the abdominal aorta and its branches by any of several angiographic methods, preoperative diagnosis of intra-abdominal lesions has greatly increased. Few reports, however, of visualized aneurysms of aortic branches other than those of the renal and splenic arteries have appeared (5, 9, 12, 13, 16, 18, 19). Report of a Case A 69-year-old white woman was admitted to The Bronx-Lebanon Hospital Center Dec. 2, 1963, with ...

The Renal Artery Presenting as a Parahilar Pseudotumor

Abstract In 4 of 100 patients examined by nephrotomography the renal artery presented as a discrete parahilar soft-tissue mass. This finding was not previously recorded and, unless appreciated, may be confused with retroperitoneal tumor or nodes. This pseudotumor is caused by a tortuous segment of the main renal artery or by its sagittally directed dorsal branch, sectioned en face in the anteroposterior plane. The finding was seen in patients over fifty years of age, and is usually, but not exclusively, associated with radiologic features of sinus lipomatosis.