Showing papers by "Howard M. Pollack published in 1980"
TL;DR: The sonographic appearances of 43 hypernephromas was characterized and correlated with the angiographic and pathologic features and the criteria for recognizing poorly echogenic tumors, which may be confused with cysts is emphasized.
Abstract: The sonographic appearances of 43 proved hypernephromas was characterized and correlated with the angiographic and pathologic features. This report details the findings and emphasizes the criteria for recognizing poorly echogenic tumors, which may be confused with cysts. A diagnostic dilemma may be posed by these tumors, particularly if angiography shows no evidence of tumor neovascularity. The end point in diagnostic work-up of these tumors must be based upon a correlative approach utilizing the clinical, urographic, sonographic, and angiographic data.
29 citations
TL;DR: A technique for cystography is suggested that will reveal disruptions of the bladder with greater certainty and the reasons for these negative radiographic findings in light of a non-intact bladder are discussed.
21 citations
TL;DR: The pathologic basis for the radiographic findings in each of the causes of a phantom calyx include tuberculosis, tumor, calculus, ischemia, trauma, and congenital anomaly.
Abstract: A calyx which fails completely to opacify on excretory urography (phantom calyx) is often the harbinger of serious underlying renal disease. Causes of a phantom calyx include tuberculosis, tumor, calculus, ischemia, trauma, and congenital anomaly. The pathologic basis for the radiographic findings in each of these entities is described and an overall approach to diagnosis is set forth.
20 citations
TL;DR: The trapping of contrast material within the interstices of a papillary growth produces a stippled appearance when viewed end on, which is highly suggestive of the presence of this lesion.
Abstract: The trapping of contrast material within the interstices of a papillary growth produces a stippled appearance when viewed end on. Since the majority of transitional cell neoplasms have a papillary configuration, the stipple sign is highly suggestive of the presence of this lesion.
12 citations
12 citations
TL;DR: Until a specific preoperative diagnosis is possible nephrectomy continues to be the treatment of choice in the proximal tubular adenoma with so-called oncocytic features.
4 citations