Computed-tomographic features of invasive lobular carcinoma

Area of Science:

• Radiology
• Oncology
• Medical Imaging

Background:

• Invasive lobular carcinoma (ILC) is the second most common type of invasive breast cancer.
• Accurate tumor characterization and size estimation are crucial for effective treatment planning in ILC.
• Traditional imaging modalities like mammography and sonography may have limitations in fully assessing ILC features.

Purpose of the Study:

• To evaluate the utility of contrast-enhanced computed tomography (CE-CT) in characterizing pure invasive lobular carcinoma (ILC).
• To compare the accuracy of CE-CT in tumor size estimation against mammography and sonography.
• To identify key CE-CT findings associated with pure ILC.

Main Methods:

• Retrospective analysis of CE-CT scans from 18 patients diagnosed with pure ILC.
• Categorization of CE-CT findings into distinct patterns: ill-defined/inhomogeneous mass, spiculated inhomogeneous mass, regional heterogeneous enhancement, and normal findings.
• Correlation of tumor size on CE-CT with pathological measurements.

Main Results:

• CE-CT demonstrated various features including ill-defined masses, spiculated masses, and regional heterogeneous enhancement.
• Tumor size estimation on CE-CT showed a better correlation with pathological findings compared to mammography and sonography.
• CE-CT provided additional details regarding the characteristics and extent of the carcinoma.

Conclusions:

• CE-CT is a valuable tool for assessing pure invasive lobular carcinoma.
• CE-CT offers superior accuracy in tumor size estimation compared to conventional breast imaging.
• CE-CT findings can enhance the understanding of ILC characteristics and extent, aiding in treatment decisions.