[Histological lesions of risk of breast carcinoma. Survival guide for the general pathologist].

Proliferative epithelial lesions are risk factors for breast cancer. They are a heterogeneous group of lesions in which the presence of atypia is related to varying degrees of risk. They should be considered in the differential diagnosis with benign lesions, in situ ductal carcinoma and infiltrating carcinoma.

Changes in breast cancer reports after pathology second opinion.

Breast cancer pathology reports contain valuable information about the histologic diagnosis, prognostic factors and predictive indicators of therapeutic response. A second opinion may be requested by medical oncologists and surgeons, when a patient is referred from another institution for treatment. We report the experience with pathology second opinion in selected patients referred to the Breast Oncology Unit.

Atypical inguinal malignant peripheral nerve sheath tumour with arteriovenous fistula of the left femoral nerve in a child.

We report a 9-year-old girl who developed a malignant peripheral nerve sheath tumour (MPNST) with an arteriovenous fistula arising from the left femoral nerve and adjacent to the iliofemoral vessels in the ipsilateral groin, but without infiltrating them. We describe the MRI and MRA findings. Although MPNST is relatively well known and widely studied, the location of this mass is unique in a child.