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Psoriasiform eruption triggered by recombinant granulocyte-macrophage colony
stimulating factor (rGM-CSF) and exacerbated by granulocyte colony stimulating
factor (rG-CSF) in a patient with breast cancer
Colony-stimulating factors (CSFs) are commonly used for the treatment of
neutropenia following chemotherapy and for the mobilization of peripheral blood
stem cells (PBSC). We recently experienced a rare case of a new onset of
psoriasiform eruption by GM-CSF (granulocyte-macrophage colony-stimulating
factor) which was exacerbated by G-CSF (granulocyte colony-stimulating factor)
in a patient with breast cancer. A 36-year-old woman had received neoadjuvant
chemotherapy (cyclophosphamide, epirubicin and 5-fluorouracil), modified radical
mastectomy and adjuvant chemotherapy with paclitaxel and mitoxantrone followed
by GM-CSF administration for the treatment of locally advanced breast cancer.
She had developed a psoriatic skin lesion on face and both upper arms during
leukocyte recovery in spite of no previous history of psoriasis. Next, the
chemotherapy course was complicated by a flare of mild psoriatic skin lesion,
although CSF was changed into G-CSF due to GM-CSF-associated psoriasis.
Subsequently, she had had high-dose chemotherapy and autologous peripheral blood
stem cell transplantation for consolidation therapy. GM-CSF was administered for
the mobilization of PBSC and post-transplant period, but psoriatic skin lesion
did not appear. During 6 months after PBSCT, psoriasiform eruption did not
appear.