Breast cancer occuring during pregnancy is a rare clinical situation.
A multidisciplinary approach is needed involving an obstetrician a med
ical oncologist and a surgeon. It should be treated according to the s
ame principles applied in non pregnant patients. Abortion or terminati
on of pregnancy don't improve survival. Decisions regarding abortion s
hould be based on the desires of the patient and on therapeutic necess
ities. Surgery if necessary is always possible, radiation therapy shou
ld be avoided by reason of fetal toxicity, chemotherapy if absolutely
necessary is possible after the first trimester.