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Breast masses with mixed cystic-solid sonographic appearance

L M Omori1, N Hisa, K Ohkuma

  • 1Department of Diagnostic Radiology, Keio University Hospital, Tokyo, Japan.

Journal of Clinical Ultrasound : JCU
|October 1, 1993
PubMed
Summary
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This study analyzed 56 breast masses with mixed cystic and solid patterns. Lack of a defined 3-D contour in tumor with cyst (TWC) lesions is a key indicator, with multiple cysts suggesting benignancy.

Area of Science:

  • Radiology
  • Oncology
  • Pathology

Background:

  • Breast masses with mixed cystic and solid sonographic patterns require accurate differentiation between benign and malignant lesions.
  • Understanding sonographic features is crucial for diagnosis and patient management.

Purpose of the Study:

  • To elucidate the significance of mixed cystic and solid sonographic patterns in breast masses.
  • To classify lesions and correlate sonographic features with pathological diagnoses.

Main Methods:

  • Retrospective analysis of 56 breast masses with mixed cystic and solid sonographic patterns.
  • Classification into tumor with cyst (TWC) and intracystic tumor (ICT) groups.
  • Correlation of sonographic findings with pathological diagnoses.

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Main Results:

  • 43% of lesions were malignant, 57% benign.
  • Malignant lesions more frequently showed a TWC pattern (58%) than ICT (42%).
  • Benign lesions predominantly exhibited a TWC pattern (66%) compared to ICT (34%).
  • Malignant tumors often displayed irregular shape and heterogeneous internal content (96%).
  • Benign lesions could also show irregular shape and rough borders, but typically had homogeneous internal echo texture and unclear 3-D contour.

Conclusions:

  • In the TWC group, the absence of a defined 3-D contour is a critical diagnostic criterion.
  • Breast tumors characterized by multiple cysts are more likely to be benign.