鼻咽部美蓝染色的临床研究

用纤维鼻咽镜对８０例患者行鼻咽部美蓝染色检查，其中鼻咽癌３５例，炎症４５例，常规纤维鼻咽镜检查鼻咽癌４０例，结果正常粘膜不着色，鼻咽癌９７．１％着色，炎症２．２％着色，鼻咽癌着色明显高于炎症着色，经ｘ＾２检验，有极显著的差异（Ｐ〈０．０１），染色区鼻咽癌活检阳性率为９４．３％，常规镜检阳性率约为７７．５％，两者有显著的差异（Ｐ〈０．０５）。因此认为鼻咽部美蓝染色可作为常规镜检的附加检查应用于临床。

Clinical Study of Nasopharynx Staining by Metbylene Blue

Nasopharynx staining was performed using methylene blue by fibreoptic nasopharyngoscopy in 80 patients (carcinoma of nasopharynx 35tnasopharyngeal mucositis 45). 40 patients with carcinoma of nasopharynx were subjected to the examination of general fibreoptic endoscopy. The results demonstrated that nasopharynx in 97.1% of patients with carcinoma of nasopharynx and 2. 2% of patients with mucositis was stained >respectively(P<0. 01). Positive rate, for carcinoma of nasopharynx was 94.3% in biopsy specimens stained,which was higher than 77. 5% in the general investigatde(P<0. 05). It was suggested that nasopharynx staining by methylene blue can be as a supplementary examination attached to general fibreoptic endoscopy to be adopted in clinical practice.