My brother's wife has breast cancer, and according to the doctor, there is a need to abort the baby. Is this permissible?

Fatwa, posted 4.22.2010, from Iraq, in:
Religious Authority: 
Ali al-Sistanti
Fatwa Question or Essay Title: 
My brother's wife has breast cancer, and according to the doctor, there is a need to abort the baby. Is this permissible?

It is permissible if there is serious danger to her health, and if the soul has not been created. If it has been created, then it is not allowed.

5/4 أشهر؟اذا كان بقاء الجنين في رحمها لتضررّها أو لوقوعها في الحرج الشديد جاز الاسقاط ما لم تلجه الروح وبعده لا يجوز مطلقاً، واذا حصل الاسقاط بعد ولوج الروح الدية على المباشرة للاسقاط.