Tcを用いたに代表される唾液腺シンチは主に耳下腺，顎下腺に集積し，唾液として排泄される．クエン酸負荷による分泌刺激とあわせて唾液腺機能の指標となり，び漫性疾患では唾液腺炎，舌咽神経麻痺，放射線照射等の疾患で用いられる．腫瘍性病変においてもワルチン腫瘍とその他の鑑別に有効である．またFDG-PETはFDG集積の目安としての半定量値であるSUVを用いることで，唾液腺腫瘍の局所病変診断，病期診断，治療評価のいずれにおいても重要になり，今日の核医学画像診断には欠かせない存在である．
Salivary scintigraphy which is representative of those that uses Tc, gathers mainly at the parotid gland and submandibular gland and is excreted. It becomes the indicator of salivary gland function that matches the secretion stimulus through citric acid loading, and among mild chronic diseases, it is used in sialadenitis, glossopharyngeal nerve paralysis, and other radiation diseases. Even in neoplastic pathological changes, it is effective in the differentiation of Walthin's with other tumors. Also, FDG-PET, by using SUV which is a semiquantitative value as the approximation of FDG accumulation, becomes essential even in the examination of local pathological changes, disease stage, treatment and cure evaluation of salivary gland tumors, and must be present in today's nuclear medicine image examinations.
