lobular carcinoma of breast

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Lobular carcinoma of the breast can be divided into in situ and invasive forms. All arise from the acini or terminal ductules of lobule.

It accounts for about 10% of breast carcinomas. It tends to be multifocal - within the same breast - and bilateral in 20 %. Metastases often seed the peritoneum. In situ disease progresses to invasive carcinoma at a rate of 15% over a 20 yr period.

Last reviewed 01/2018