THE DIAGNOSTIC PROBLEMS OF ISOLATED, CIRCUMSCRIBED BREAST TUMORS

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Abstract
Probably 60 per cent of all breast cancers seen on roentgenograms are circumscribed, lacking the easily identifiable radiating striae and strands issuing from the periphery that are seen in scirrhous cancers. Since these circumscribed cancers are difficult to distinguish from benign lesions like fibroadenomata and cysts which they resemble, it is important that the[See figure in the pdf file]roentgenologist pay strict attention to some of the secondary diagnostic signs.Among these is the curious tendency for these tumors to have notch-like deformities in their outlines or comet tail-like extensions of one or more portions of their periphery, with progressive intensity of perifocal edema associated with vascular turgescence and thickening of the skin as the tumor enlarges. About 35 per cent of these tumors are associated with the presence of microcalcifications within or about them, and it is these secondary signs which are of great help in distinguishing such tumors from bosselated fibroadenomata, cluster...

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