Mammographic features of pure XXXX of the breast with pathological correlation.

@entity1 @entity66 @entity0 @entity5 @entity75 @entity189 @entity730
OBJECTIVE: To determine the mammographic features of pure @entity189 of the breast and correlate them with the pathologic features. @entity1 AND METHODS: The authors analysed 23 @entity5 identified as pure @entity189 of the breast in 22 @entity1 , aged 40 to 92 (mean 64.9) years at the time of mammography (which took place between November 1975 and July 1992). The review covered mammographic features, clinical findings, pathological features and nodal status. RESULTS: Twenty (87%) of the lesions were palpable, and 4 (17%) were mammographically occult. At mammography, eight cases (35%) presented as ill-defined masses without @entity730 , five (22%) as well-defined masses without @entity730 , four (17%) as ill-defined masses with @entity730 , one (4%) as a focal asymmetric opacity and one (4%) as @entity730 only. Eleven (65%) of the 17 mammographically identified masses were irregular in shape, 4 (24%) were oval, and 2 (12%) were lobular. In 11 (61%) of the 18 cases involving masses or an opacity, the lesions were denser than normal breast parenchyma; in the others the lesions were isodense. All of the @entity75 were greater than 1.9 cm in greatest diameter, as determined mammographically, whereas only one of the isodense lesions was greater than 1.9 cm in greatest diameter. In 17 (77%) of the 22 cases in which the border of the lesions could be evaluated histologically, the lesions had well-defined, pushing borders; the others had ill-defined, irregularly outlined borders. @entity730 were seen histologically in seven cases (30%) and were correlated with mammographically suspicious @entity730 in three. Fourteen (82%) of the 17 @entity1 who underwent axillary node dissection were free of @entity66 . CONCLUSIONS: The most common mammographic appearance of pure @entity189 was an ill-defined mass and the second most common was a well-defined mass. No spiculated lesions were observed in this @entity1 group. Microcalcifications were seen in some cases but were less common than in @entity0 in general. Lesions more than 1.9 cm in greatest diameter tended to be hyperdense. A substantial proportion of pure @entity189 may be mammographically occult.
