Patient suffering from a myoepithelial carcinoma of the right maxillary sinus. After resection of the tumor the transport of tears into the nasal cavity was impossible so that the patient suffered from extensive hyperlacrimation (see left side of picture). Following BTA injection into the pars palpebralis of the right lacrimal gland, hyperlacrimation is reduced but no dry eye occurred (right side). This measure is suited to be done in patients with crocodile tears and any kind of stenosis of the lacrimal duct. It may be a good "interim treatment" before surgery and can be an alternative treatment when patients do not want to undergo surgery.