Anti-CV2 (or collapsin response mediator protein 5) encephalitis: associated with SCLC and malignant thymoma that has prominent T2-FLAIR hyperintense lesions in the striatum clinically resembles choreiform movement disorders less prominent involvement of the medial temporal lobe no restricted diffusion or T2-FLAIR hyperintense lesions in the striatum. Here, DPYSL5 is linked to small cell lung carcinoma.