Leptomeningeal carcinomatosis (LM) is a clinically important complication of adenocarcinoma of the lung.However, because it is difficult to diagnose, LM is rarely reported.

• 摘要软脑膜转移是肺腺细胞癌的重要并发症，不易正确诊断故临床少见报告，发生率亦不明。