Detection of Cauda Equine Syndrome With F-18-FDG PET/CT and Leptomeningeal Metastasis by Ga-68-DOTATATE in the Same Patient With Large Cell Neuroendocrine Carcinoma of Lung

摘要

Leptomeningeal metastasis is the metastatic spread of the disease to leptomeninges from solid tumors such as breast, lung cancer, and melanoma. Cauda equine syndrome is a neurological condition caused by compression of the cauda equine. The incidence of large cell neuroendocrine carcinoma in resected lung cancers appears to be 2.1% and 3.5%. The incidence of clinically diagnosed leptomeningeal metastasis in patients with solid tumors is approximately 5%. Here, we present cauda equine syndrome caused by the metastasis of large cell neuroendocrine carcinoma detected by F-18-FDG PET/CT and also Ga-68-DOTATATE PET/CT.