BRCA1 and metastatic malignant neoplasm in the lymph nodes: Regarding BRCA1 mRNA expression, as obtained by RT-PCR reaction, BRCA1 mRNA showed a borderline relationship with perineural invasion (p=0.053), but not with gender (p=0.127), histological grading (p=0.927), angiolymphatic invasion (p=0.286), lymph node metastasis (p=0.303) or clinical staging (p=0.713).