J.Jpn. Surg. Soc.
ISSN 1880-1129

[Abstract] [Full Text PDF] （in Japanese / 515KB） [Members Only And Two Factor Auth.]

J.Jpn. Surg. Soc.. 89(1): 84-90, 1988

Original article

A STUDY ON THE DEFINITION OF EARLY BREAST CANCER

1) First Department of Surgery, Teikyo University School of Medicine, Tokyo, Japan
2) Department of Surgery, Hiratsuka City Hospital, Kanagawa, Japan

Tatsuo Asagoe1), Hiroshi  Yamoto1), Akihisa Nemoto1), Tadahiro Takada1), Jun-ichi  Shikata1), Akahito  Aoki2), Ryu-ichi Nakayama2)

The most important factor in improving the survival rates of the patients with breast cancer is early detection. A high cure rate can be expected if the condition is discovered in early stage.
There were 195 patients with primary breast cancer in our hospital from August 1978 to November 1986. Among 280 patients with breast cancer who received radical operations from July 1970 to November 1986, there were 50 patients (18%) with recurrence. Mammography and echography were effective for the diagnosis of infiltrating cancer smaller than 10mm in diameter as well as those between 11 and 20mm in diameter. None of the patients with non-infiltrating or infiltrating carcinomas smaller than 15mm or smaller than 20mm in diameter with negative nodes had recurrence. Consequently, at present we define early breast cancer as the lesions of pathologically noninfiltrating or infitrating smaller than 15mm in diameter, or infiltrating smaller than 20mm in diameter with negative nodes.

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