“…Several recent reports have described the usefulness of low-dose spiral chest CT for visualizing lesions in the lung, and a few reports have emphasized that breast abnormalities can also be identifi ed by CT. [7][8][9] Because CT is sometimes the fi rst radiological study to detect early breast cancer in asymptomatic women, it is important to be familiar with the CT appearance of this disease. 7,8 A small number of authors have stressed the usefulness of noncontrast chest CT for detecting breast tumors, 9,10 and many have recommended contrast-enhanced CT for detection of breast cancer. 7,[11][12][13][14][15] We conducted a 3-year clinical study to evaluate the detection rate of abnormal breast lesions, including breast cancer, by noncontrast spiral chest CT as well as the appearance of these lesions on the CT scans.…”