Tumour response following high-dose intratumoural application of Viscum album on a patient with adenoid cystic carcinoma.

Adenoid cystic carcinoma (ACC) is a rare type of cancer that typically originates in the salivary glands. Surgical removal can lead to functional loss and psychological distress. Viscum album extract (VAE) is a herbal remedy with dose-dependent cytotoxic, apoptogenic and immunological effects.