Yes. Many types of chemotherapy can directly affect the brain and cause stroke-like symptoms. Some chemotherapy also increases the risk of blood clots, or the risk of bleeding, both of which may cause strokes. Be sure to tell your doctor immediately about these symptoms.
Maybe. Strokes result from blood vessel disease, coagulation defects, and metabolic abnormalities. These are exactly the side-effects that chemotherapeutic agents may cause. But remember that cancers can also cause symptoms independent of direct brain involvement (i.e., metastases). Consult the oncologist administrating the drugs.
Yes. This is one of the mechanisms of action of cancer chemotherapeutic agents.