Neuronal antibodies and paraneoplastic sensory neuropathy in thymoma.

Thymoma, a common anterior mediastinal tumour, may present with paraneoplastic neurological symptoms. The presence of neuronal anti-Hu paraneoplastic antibodies in thymoma patients is very rare. Here, we describe a patient who presented with symptoms of a sensory peripheral neuropathy in the presence of onconeural antibodies cross-reactive with Hu antigen, in whom an underlying thymoma was diagnosed. Subsequent minimally invasive thymomectomy improved her neurological symptoms significantly.