Metastatic Patterns of Lobular and Ductal Carcinoma
Author Information
Author(s): M. Harris, A. Howell, M. Chrissohou, R.I.C. Swindell, M. Hudson, R.A. Sellwood
Primary Institution: Christie Hospital and Withington Hospital, Manchester, UK
Hypothesis
Infiltrating lobular carcinoma (ILC) may have a distinctive metastatic pattern compared to infiltrating duct carcinoma (IDC).
Conclusion
The study found significant differences in the metastatic patterns of ILC and IDC, with ILC showing a higher propensity for certain types of metastases.
Supporting Evidence
- Lung parenchymal metastases were more common in IDC.
- Bone trephine biopsies were more likely to be positive in ILC.
- Carcinomatous meningitis was associated almost exclusively with ILC.
- Distinctive peritoneal/retroperitoneal metastases occurred in ILC.
Takeaway
This study looked at how two types of breast cancer spread in the body and found that lobular cancer spreads differently than ductal cancer.
Methodology
The study compared clinical and autopsy data from patients with IDC and ILC to analyze metastatic patterns.
Limitations
The study excluded cases with a mixed pattern of IDC and ILC.
Participant Demographics
Patients included 831 with IDC and 135 with ILC, presenting to two hospitals in Manchester between 1976 and 1982.
Statistical Information
P-Value
< 0.0001
Statistical Significance
p<0.05
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