Ameloblastoma is considered to be a benign odontogenic tumour of epithelial in origin that is slow growing but recurrent and invasive in nature. Some of its features have been sources of debate among experts regarding its benign or malignant character. We report a case of a 20-year-old Filipino woman with right mandibular ameloblastoma presenting with overwhelming hypercalcaemia. Work ups for hypercalcaemia eventually revealed tumoral hypercalcaemia, which was initially controlled with intravenous bisphosphanate. The patient eventually underwent tumour excision and mandibular reconstruction, which totally corrected hypercalcaemia. This case will highlight the rare association of hypercalcaemia among patients with ameloblastoma.

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