Principle: This is a functional and morphological examination of the salivary glands and their ability to uptake radiopharmaceuticals. The intensity, rate and symmetry of accumulation of the radiopharmaceutical by the salivary glands and their response to salivation stimulus are assessed.  Indications: Sjogren’s syndrome Inflammation abcesses cysts lymphatic infiltration Patient preparation: the patient brings a lemon to the examination 1 hour before the examination do not eat, drink, chew gum Duration of examination: approx. 40 minutes Radiopharmaceutical: 99mTc – pertechnetate Method of application: Intravenous Examination methodology: The patient is injected with the radiopharmaceutical intravenously in the supine position. Immediately after application, we start a dynamic study focusing on the head region. In the middle of the examination, a salivation stimulus (lemon juice using a tube or syringe) is administered orally.