Distichiasis in association with entropion in metastatic HER2‐positive breast cancer treated by pertuzumab, trastuzumab, and docetaxel combination chemotherapy

We report the first case of distichiasis combined with entropion in a HER2‐positive metastatic breast cancer patient treated by pertuzumab, trastuzumab, and docetaxel combination therapy. After 7 months, she had ocular complaints including pain, irritation, burning, dryness, and redness in her both eyes. Ophthalmologic examination revealed distichiasis and a mild entropion involving her lower eyelids bilaterally. She remained free of symptom and in complete response to maintenance chemotherapy.