[A comparison between CT and SPECT in detecting mandibular invasion by lower gingival squamous cell carcinoma].

Purpose: The purpose of this study is to compare the value of CT and SPECT in diagnosis of lower gingival carcinoma invading the mandible.

Methods: From February 2002 to October 2006, twenty-one patients with lower gingival squamous cell carcinoma were enrolled.The data of CT and SPECT were studied,and compared with histopathological findings.