Clinical Case: Miss Anderson's Breast Lump
 
Symptoms & History

Physical Findings

Stop & Think

Lab and X-Ray

Differential Diagnosis

The Disease

Treatment

Conclusions

Quiz & Evaluation

Cellular changes in breast cancer development.
  • Loss of cell growth regulation leading to epithelial hyperplasia and sclerosing adenosis.
  • Next comes atypical hyperplasia with evidence of genetic instability.
  • Expression of oncogenes
    • c-erb-B2
    • Her2/neu
    • c-ras and c-myc
  • Decreased expression of tumor supressor genes
    • p53
    • NM23
    • RB
  • Increased expression of cell cycle proteins.
  • Major chromosomal abnormalities such as aneuploidy and hyperploidy.
Classification of breast cancer.                                     Back
 

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