Toxic epidermal necrolysis in a female with metastatic breast cancer treated with vinorelbine.

Vinorelbine is an anticancer agent with high clinical efficacy for the treatment of metastatic breast cancer. Toxic epidermal necrolysis is a rare but serious cutaneous adverse reaction associated with drug therapy. We hereby present a case report of a patient with metastatic breast cancer, treated with vinorelbine, who developed toxic epidermal necrolysis. To the best of our knowledge, ours is the second case report describing this exceptional dermatologic emergency associated with vinorelbine. In June 2014, a 33-year-old female was treated for localized breast cancer. In December 2016, a brain magnetic resonance imaging revealed cerebral and cerebellar recurrence of the breast cancer. Whole brain radiation therapy was administered and treatment with vinorelbine was subsequently initiated. On day 3 of the first cycle of chemotherapy, she presented a general malaise and an itchy rash with conjunctivitis, oral ulcers and diffuse alopecia. The clinical diagnosis was toxic epidermal necrolysis due to vinorelbine. The patient was transferred to the burn unit. Treatment with intravenous steroids, topical steroids and desloratadine was initiated. She subsequently developed Staphylococcus aureus bacteremia and died of multi-organ failure. Toxic epidermal necrolysis is an extremely rare, acute hypersensitivity reaction involving the skin and mucous membranes. Features more suggestive of toxic epidermal necrolysis are acute onset and rapid worsening of painful lesions of the skin and mucous membranes. Specific treatment with active interventions should be practiced in the context of an international and multicentre clinical study in order to give sufficient power for such trials in this rare disease.