An 82-year-old man with a background of prostate carcinoma and bony metastases presented with bilateral discharging neck fistulae. Two years prior to presentation, the patient had been treated with intravenous zoledronic acid for 1 year as part of chemotherapy. Intraoral examination revealed extensive bilateral medication-related osteonecrosis, with orocutaneous fistulae within the neck. Treatment comprised removal of loose necrotic bone sequestrae, debridement of the fistulae and long-term administration of antibiotics, vitamin E and pentoxifylline. Four weeks later, the orocutaneous fistulae had healed.

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