[A Case of Aortitis Caused by Pegfilgrastim Use during Neoadjuvant Chemotherapy for Treating Breast Cancer].

Granulocyte colony-stimulating factor(G-CSF)is useful for preventing febrile neutropenia induced by chemotherapy. Recently, some cases of aortitis have been reported following administration of G-CSF. Here, we present a case of aortitis induced by pegfilgrastim(peg-G)use during neoadjuvant chemotherapy for treating breast cancer.