Ultrasonographic Findings of Invasive Lobular Carcinoma of the Mammary Gland in Comparison with Histopathological Images.

DOI 2 Citations 11 References
  • Ito Kumiko
    Departments of Clinical Laboratories, Kyushu University Hospital
  • Shinyama Nozomi
    Departments of Clinical Laboratories, Kyushu University Hospital
  • Ikeda Yumie
    Departments of Clinical Laboratories, Kyushu University Hospital
  • Sakai Shuji
    Kitakyushu Municipal Medical Center Department of Radiology, Kyushu University Hospital
  • Ono Minoru
    Departments of Radiology, Kyushu University Hospital
  • Toyoshima Satoshi
    Departments of Pathology, Kyushu University Hospital
  • Mitsuyama Shoshu
    Departments of Surgery, Kyushu University Hospital

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  • 乳腺浸潤性小葉癌の超音波所見　組織像との対比
  • 組織像との対比

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Abstract

We studied the ultrasonographic findings of invasive lobular carcinoma of the mammary gland in comparison with its histopathologic images. This type of breast cancer has been increasing in Japan. Out of 55 breasts in 53 cases of invasive lobular carcinoma, confirmed by histopathologic diagnosis between January 1990 and June 1998, we studied 33 breasts with the classical type of lobular carcinoma, excluding 1 breast without any abnormality on the preoperative ultrasonogram, 6 breasts coincidented with ipsilateral invasive ductal carcinoma, and 15 breasts with variant form of lobular carcinoma. <BR>With regard to ultrasonographic findings, we reviewed 6 items-lesion margin, border, posterior echo, depth width ratio, boundary echo, and indentation-and compared them with their histopathologic findings in all 33 cases. Ultrasonography of lobular carcinoma revealed that a coarse margin, indistinct border, absent or weakened posterior echo, comparatively small depth width ratio, and boundary echo or indentation tended to be indistinct. These ultrasonographic findings were considered to reflect the characteristic growth of tumor cells and a poor interstitial reaction of this type mammary carcinoma. <BR>Lobular carcinoma shows a characteristic growth form, which is reflected in the ultrasonographic findings.

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