Abstract
Breast cancer and non-Hodgkin's lymphoma are the commonest and 7th commonest malignancies in Australian women, with lifetime incidences of 1 in 11 and 1 in 98. Lymphoma of the breast accounts for 0.5% of all lymphomas. BreastScreen WA records from 1990 to 2000 were searched for lymphoma. During this time, 450,421 women were screened and 2,314 cases of malignancy detected. Eight cases were detected. Patients' ages ranged from 52 to 84. Two were symptomatic, with tiredness and inguinal lymphadenopathy respectively. The abnormality was axillary lymphadenopathy in four cases, intramammary masses in three patients, and both in one case. Intramammary masses were investigated as for any indeterminate lesion. Nodes exceeding 2 cm without a fatty centre were seen in three cases. In the other two cases they were less than 2 cm long but had enlarged. The possibility of lymphoma was considered before biopsy in three cases, all axillary lymphadenopathy. Diagnosis was confirmed by open biopsy in seven cases. There were seven cases of low grade non-Hodgkin's lymphoma, and one case of intermediate grade. Lymphoma can be detected on screening mammograms as an intramammary mass or as axillary lymphadenopathy.
Highlights
Histological analysis of core biopsy of breast lesions takes a minimum of 24 h, but imprint cytology of a core biopsy can be reported within an hour
A total of 450,425 women were screened by BreastScreen Western Australia (BSWA) from January 1990 to December 2000. 2,314 cancers were detected with a total cancer detection rate of 5.1 cancers per 1,000 women screened. 4,916 women of ATSI origin were screened during this interval. 31 breast cancers were diagnosed, with a total cancer detection rate of 6.3 cancers per 1,000 women screened
These lesions may mimic the microcalcifications of ductal carcinoma in situ at screening mammography
Summary
Histological analysis of core biopsy of breast lesions takes a minimum of 24 h, but imprint cytology of a core biopsy can be reported within an hour. This study validates the accuracy of imprint cytology from core biopsy of breast lesions obtained under ultrasound control. Full field digital mammography (FFDM) seems set to replace conventional film-screen technique. Concern has been raised over FFDM diminished spatial resolution (5–6 Ip/mm). If valid, this could compromise detection of calcification and diagnosis of ductal carcinoma in situ (DCIS). In our centre we were not able to perceive any difference between microfocus magnification and on-screen magnification when assessing microcalcification. We subsequently compared these results with average scores for over 90 film-screen mammography systems
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